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习题练习：.Resistor.
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 作者: admin  发布日期: 2024-08-22 15:34    总分: 50分  得分: _____________

答题人: 游客未登录  开始时间: 24年08月22日 11:12  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.09: In the circuit shown,spjo +or 2g(qw/6s0* ahx*c.bh jdf:k an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of elec:g*2ax o6 0qj/*jphb.kh( d w+ofcss rtron flow through the resistor and the direction of the electric field through the interior of the resistor?


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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.06: When any four resistors are connected in parallel, the_________each resi*. ca2u w82kafpu*) ,u , tas6bhqbcvhstor is t2,tbpckuch8f h,bw2*u sua *qa6v. )ahe same.

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.33: A current through the thin filament wire of a lijfy fk :g+k 3an(:c)fvghtbulb causes the filament to become whifn jc k:3gy:+afvf)k (te hot, while the larger wires connected to the lightbulb remain much cooler. This happens because

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.08: Some standard household lights are being replaced withm77uf)vi.l +vpgdqwmxw z9 8x4: .rrq LEDs. LED is the acronym for which one of the xq+vu4dw7:x 9g r8fmi7plvmr.z w .q )following choices?

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5#
 
多选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.16: A cylindrical graphite resistor has lengthz4hi.vvmo fzu/g8dp m- n 660n L and cross-sectional area A. It is to be placed into a circuit, but fg-.p vnunzzd 86o/mih4 v m06it first must be cut in half so that the new length is 1/2 L. What is the ratio of the new resistivity to the old resistivity of the cylindrical resistor?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.20: Wire I and wire II are made of the same material. Wire II has twicegh st pdf: )4ax zyk12k;9hy8h the diameter and twice the lenf2hghkhsk )91pyx:z 84a;dyt gth of I. If I has resistance R, II has resistance

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.31: Wire Y is made of 4ng2b/kyt(ijhoup 1 df1i5 /fthe same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would ha /djyft4fk(b n1iop12gu hi5/ ve a resistance of

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.23: A cylindrical resistor has length L and radius r. Tz8/ix8)r kzmf)e 6 csuhis piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material 6 m8z/xefsick)8 uz r)because of this process?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.27: A junior Thomas Edison wants to make a brighter lighz2q vnsnwxx0wm 6z5 j 2nmj093t bulb. He decides to modify the filament. How should the filament of a lightvxzqmm5nsx06wz20 wj2nj 39nbulb be modified in order to make the lightbulb produce more light at a given voltage?


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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.07: Three cylindrical resistors are made of the same material. The length anb2ym5fc.)icf86on snetby- 0 d rad.tb8-5fsb0cmyi fc yoe ) nn62ius of each resistor is:
Resistor 1: Length L, radius r
Resistor 2: Length L/2,radius r/2
Resistor 3: Length L/4,radius r/2
Which one of the following choices correctly ranks the resistance of these resistors (R1,R2,R3)?

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.22: Four resistors, each of resistance R, are connected to a battery ih-oqdcld 7roa 5wi16/3syd;yn the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resistor. This set of three resistors is connected in series to idoyd-36 qc sy/ow7d;a5r1l ha fourth resistor.” What is the equivalent resistance of this arrangement of four resistors?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  95.35: The voltmeter in the accompanying circuit diagramvqrc/;1+ztn1 8u qg 5rjnhub- has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is mostn18chr vgz- u/5qb+ q1ju;r nt nearly:


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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.37: Consider the compound circuit shown to the right. : .;i zq;ea6 bndtmnw2The three bulbs 1, 2, and 3 - represented as resi eqdnt:.bw z;2nam6;istors in the diagram
- are identical. Which of the following statements are true?
I. Bulb 3 is brighter than bulb 1 or 2.
II. Bulb 3 has more current passing through it than bulb 1 or 2.
III. Bulb 3 has a greater voltage drop across it than bulb 1 or 2.


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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.30: Given the simple elec10uqkupk,y 7 es b.e,atrical circuit at the right. If the current in all three resistors is eq1skaq,uee b7 k,.0upyual, which of the following statements must be true?


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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.37: The diagram at right represents a simple agw- j-:;ie + mczunsgs0o)e7y jy7+h electric circuit composed of 5 identical light bulbs j77-m)+-o hygg zu0 c s eey;wsijna:+and 2 flashlight cells. Which bulb (or bulbs)
would you expect to be the brightest?


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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  00.03: Which of the following statements is NOT true concerning the simple cb1/vlb uvmy kb*) k1ccx-(e r6fp:fj*ircuit shown where resistors R1, R2 and R3l *f c:b(cuerpkbjv1 yxb*v f1)k-6/m are have equal resistances?


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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.29: Two lightbulbs X andY are connected in series to a battery.3df67copg;ezs rsjm f9a j :+;gu,k*n Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to the same battery, which one of the following choices sne, ;:a6fjs 3pk97*z jof;g dumg+rcbest represents what is observed?


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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.34: How many coulombs will p lz ck*xu3t*8 pass through the identified resistor in 5 sex*k*up l3c tz8conds once the circuit was closed?


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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  00.23: If all of the resistors in thenn -+7hiz cu j38sq(7gd( hxng following simple circuit have the same resistance, which j3 g(7( - +zhhgd qnnciusnx87would dissipate the greatest power?


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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.34: In the accompanying circuit j3l+ii ftv 2+v m1b 28/-xglsiut qqy0diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltagmtfytvqq j-i i2/u+s02l+ x i3 1lvb8ge V?


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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.27: Three resistors R1, R2, and R3 are connected in o;+jx n qo0z9+876zsbi0 pumjgl(sugseries to a battery. Suppose R1 carries (n 6omis8;xo u +9qj0p0 lsbu7+g zzjga current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. What is the voltage across R3?

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.40: Three different resistors R1, R2 andR3 are connected in parallel to a gj 9+a fg gd9a1 is93nvg,98eo1qkuxobattery. Suppose R1 has 2V across it, R2 = 49xvsgggq 9n guo 138 1oe,+9djkaa 9fiΩ, and R3 dissipates 6 W. What is the current in R3?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.13: A heating coil is rated 1200 h stk+lq;1 5yn4z. xul bgpp-7watts and 120 volts. What is the maximum value of zlp.yhxbt l+q4ng -15uk;s7p the current under these conditions?

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.23: What is the resistance of a 60 watt lighb.9seu9gin oo l 0j1:otbulb designed to operate at 120 0 .j9iln:s 19ooeoubgvolts?

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.09: How much currentvq59- bcx/ wv j3/(dcqcb g(mt16hklc flows through a 4 ohm resistor that is dissipating 36 watts of powc 3qcbj(b 6mh59t gw- c1c/v(q/lx dvker?

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.21: A household iron used to press clothes is marked "120 volt, 600 j+iw 7 mowh, ,7 xrcu*p9dsghz8nvcg4l(/ i(ywatt.” In noricu7(p7cjlg(8,g ozwm wshr/y9 h 4i+* dv n,xmal use, the current in it is

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.05: Which of the following resistances could NOT be produced by a zbt:+9+vtmomq q2x. l circuit containing only three identical 6Ω r qml to.t9zq+mbx +v:2esistors?

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  94.37: You are given three 1.0 Ω resistors. Which of the following eob a;9y+ kef5kkm *gy8quivalent resistances CANNOT be produced using all three 9a;kb *eky 8 y5fgm+okresistors?

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.06: Three resistors of differet/;k4uk0fpv62 mtt -cql: ncznt values can be connected together in different configurations. If all three resistors are used in a circuit,kz/ulkvq p 4 0t-tm cc6;f2:tn how many different values of total resistance can be produced?

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.35: When a single resistor is connected to a battery, a total power P is disnp6z9c4 *ktd5im a-v)lq3fxx sipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series usc4l- 5ktp zm)3 vxnxqdfai 6*9ing the same battery? Assume the internal resistance of the battery is zero.

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  96.16: When two resistors, havzyb*-; 1 lzu d.zq/tuning resistance R1 and R2, are connected in parallel, the equivalent resistance of the combibyudn1z /lzt; uqz-.*nation is 5Ω . Which of the following statements about the resistances is correct?

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.46: A hotplate is designed such that it has a resistance of 12Ω whehta97snvnf8ki vq* 76n operating at 120 volts. What is the mini vsv7 it9nhn8 k6f*qa7mum amount of time that it would take to warm 0.45 kg of water from $15^{\circ}C$ to$85^{\circ}C$?

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.09: How much current flows through a 4 ohm resistor that is de nxktvts.jy) t890n 3issipating 36 watts of power?vt y)ne.s38x0 nj tk9t

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.24: An electric heater draws 13 amperes of current when cob7;br0cs rqg; calvc2 .kxe4 1nnected to 120 volts. If the price of elec 1.e c ;0kc4gv2xralq;bcrb s7tricity is $0.10/kWh, what would be the approximate cost of running the heater for 8 hours?

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  08.05 Approximately how much would it cv*y 2+4icpxy yup8of0 ost to keep a 100W lightbulb lit continuously for 1 year at a ru+o8y0p x2fi pcy4vy*ate of $0.10/(kW.hr) ?

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.09: A constant current of 4.00 A through a lightbulb results in 1w u7-i f) 4;hfmpgq. n jiol7ch-qef0a power of 24.0 W associated with the bulb. Which one of the following choices best represents the res.nhf4h- qc)jgmoqpifl7 0-f 71e ;wui istance of the lightbulb?

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.10: Each member of a family of six owns a computer rated at 500 watts i(ba 9f89yda aqn a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fud8 a qb(fy9aa9se, what is the maximum number of the computers can be operating at the sametime?

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.16: A 9-volt battery is connected to four resistors to form a simple c ,91ols au8j) qvlnx7eircuit as shown to the rightq71svl oal)nu, e89j x.
How would the current through the 2 ohm resistor compare to the current through the 4 ohm resistor?


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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.17: A 9-volt battery is connected to four resistors v3lj1 8kx)rnc e ke2 sxbu-):xto form a simple circuit as shownk:cxb))rex23-8e n1 sul jvkx to the right.
What would be the potential at point B with respect to point C in the above circuit?


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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.21: An ideal battery, an ideal ammeter, a switch and three resistors are coelu:+ot 66 ojgnnected as shown. With the switch open as shown in the diagramo+o : u6lte6gj the ammeter reads 2.0 amperes.
With the switch open, what would be the potential difference across the 15 ohm resistor?


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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ic+7u y9d noh9/fj*hhdqhzf wp9za.d.(p9ue6 deal ammeter, a switch and three resistors are connected as shown. With the h9.pqeh/cndhup9 fdyu zfj+ ao9* dw( 967zh .switch open as shown in the diagram the ammeter reads 2.0 amperes.
With the switch open, what must be the voltage supplied by the battery?


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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal ammeter, a switch and three resifsf;74qh 6i6rw2csd .0jlmqe stors are connected as shown. With r42c; f0w.jseqq6i6 ld fs m7hthe switch open as shown in the diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit shown to tdmf 1a )h0uk6e qf8,bbhe right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no i0ha8ue qbb1k,6)m f fdnternal resistance, and all three resistors have identical resistance R.


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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.07: The equivalent resistance of the circuit l/s:bhv*y f; nx.o2os no,bg .ya.sm3 shown to the right with resista.s/hm o2lyf :.,g* nossbn;ao.xb yv 3nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ and $R_3= 2.00Ω$ is


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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.20: The diagram below shows fivekp; h/v1 : jyyt5ccpw. identical resistors connected in a combination series and parall;.tp vh:c1p yy wj/kc5el circuit to a voltage source.
Through which resistor(s) would there be the greatest current?


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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.21: The diagram below shows five identical resistors connected in a (s+dh ( j n /hw50ft:o;/hlmkzyl6poz combination series and parallel circn 0 hz(kofjh+dlh/l yo;z 6/5 p:mtws(uit to a voltage source.
Which resistor(s) have the greatest rate of energy dissipation?


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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.29: In the circuit diagram, all of the bulbs are identicalcg8n39 s bcsjqm4y i-gl5wc(5. Which bulmwi(-gccbjcl4s3 5 5n9gq sy8b will be the brightest?


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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.21: An ideal battery, an ideal ammeter, a switch and three resiaq52ze ud/,b* cfyy:qstors are connected as shown. With the switch open as s/q:ay 2bedyu ,qcfz 5*hown in the diagram the ammeter reads 2.0 amperes.
With the switch open, what would be the potential difference across the 15 ohm resistor?


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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal ammeter, a n:5o jbcwi7dg y5t*j *4 rhr0.l;ud8kqhu 9hfswitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter 8r9jci5no*urq;5 dh7lt:dh * bhy gw4ju0f .kreads 2.0 amperes.
With the switch open, what must be the voltage supplied by the battery?


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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal ammeter, a switch and three resistors a i ,s*uauj9t. yc0sutc yy-ixhnvmy3 53c t,,(re connected as shown. With t scycc . 3umyt y3uia(0yt,i ,9xn5,vsh- tuj*he switch open as shown in the diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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