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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, an electric current exists i/ .)l cftf i::5yeptutn the metal resistor connlt).fceufti 5::tp/ yected to the battery. Which one of the following choices best describes the direction of electron 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 .qjs4 6zpe5x lparallel, the_________each resistor is x4l6j.ps5zqe the 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 lightbulb i/8bi*sm ohc 9 qpm po2. 12pbm.jz3rdcauses the filament to become white hot, while the larger wires connected to the li qm.*/dbszpom2m 29bj3o1.hi8cr pi pghtbulb 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 with LEDs. LED is fc4pk (v;h 8wkthe acronym for which one of the f4kh k(;fp8cvw ollowing 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 hawu4 z9qy( vt*( ebowo98 e*ytbs length L and cross-sectional area A. It is to be p* ezeb*wq8o t9 y (by9o(w4utvlaced into a circuit, but it 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 twice thdz 1xu5c xq6ya9ph9;se diameter and twice the length of I. If I has resistance R, II has resista1q s99h;z5 xcuyd xap6nce

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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 the same material but has twice the diameter rqk.ea/ k**v1sda md4e l 6t5zand half the length of wire X. If wirvtq 1z *rladm.5a/k 64edk s*ee X has a resistance of R then wire Y would have 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. This piecezju ru(6 h7z83y ai.r(z;le ur of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of this priu7ezhr6 (;y(z .uu r8rl3az jocess?

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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 adc (tuv.a ppt2;-) y4mwf g0fn brighter light bulb. He decides to mod pcw4dy()f 0-mafu.2t;g vp tnify the filament. How should the filament of a lightbulb 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 lenx9 ccn4eg5-zxki -tm. gth and radtxg m4cize k5.x-nc 9-ius 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 no:3js-: u*wbvr,cp qin 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 -nr:qb j3,uc o:p *vswseries to a 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 diagram has inth8l):/aq+jcw7 jx1ytngi yw) ernal resistance 10.0 kW and the ammeter has internal resisn7jta wl:iywxq1 /+j)g yh8c) tance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most 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 circ- dffsno5 .1 xlo,3mpguit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagrl5oso1f n -m3d,fxgp.am
- 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 electgjqv 9em (k7*trical circuit at the right. If the current in all tkvm9( *qej tg7hree resistors is equal, 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 electric circuit composed of 5 iya6q 5b u +p lyi+xbaf*8b(:i9oyq(y 7lu d3ahdentical light bulbs and 2 flashlight cells. Which bulb (or bulbi(y b:u yyabobd h*y3 7qqul+8i 6 f9aa(p5l+xs)
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 circ-6xb+x3 ynh,l bj6 xq.ifafl7c *dng) uit shown where resistors R1, R2 and R3 are hav.dy3-fh6 ql+bnjxgx),6 xnlac*b 7 fie 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 connecbbld7csjs* e)k9;h;tl074ld 7 uly gp7dw( pzted in series to a battery. 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 best represents what is obserd9tppg* d7k yl 7ue0z)l lw; 7d(sbc ;bsl74jhved?


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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 passsge lqnx km:g,p 9:/6b through the identified resistor in 5 seconds once the circg gnx:l /m,p:q k69sbeuit 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 the 04i/war;polr;*f8rua; ; ia:cyg tq8vgm k3z following simple circuit have the same resistan*0qi: r3la g;ytm;r8zi /;cu; kvpa4 wgf8roace, which would 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 diagram, the current through the 6.0 Ω 3i 8ej7d czdk9j;/il dwl. 1awresiijjld931we/ d;l dzaw. ki87cstor is 1.0 A. What is the power supply voltage 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 Ra -merg n;or-.f9f vg+1, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 d ag-;o.ge9- n f+rmrvfissipates 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 zy*th0i+2n9 q)/msjeh z6nztparallel to a battery. Su h)m0s*ye+i n62/j zztnqthz 9ppose R1 has 2V across it, R2 = 4Ω, 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 watts and 120 1si15cx 8xf*n gz(hjc9s3z hgp t0x8mvolts. What is the maximum xh3sjpzt8*nx1ifg c1c9 0xmzh(g s58value of 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 lightbulb desig6-2q7bad .-jxixkvy eet:p 9bned to operate at 120 vo6t.7qpbd2--xjik 9eyx :aveblts?

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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 current flows through a 4 ohm resistoraa3p. 2cwma0q8*hy vfhz5eu 5 that is dissipating 36 wattu 0.8pve5hm5wa aza3ych2qf * s of power?

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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 clothx qit +hq t4-nthl11.nes is marked "120 volt, 600 watt.” In normal use, the current in itttlhnx qh4.11ti+q -n 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 NOpzhg d2*jo94gnwm9 h61 uy fl7T be produced by a circuit containing only three identical 6fz2*unpj1dg 79h9gml 6y4wo hΩ resistors?

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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 mh:t00 d8)mo g r3f.wp9emc xv1.0 Ω resistors. Which of the following equivalent resistancesxhcwd.3p0fgt80ro 9vmme) m : CANNOT be produced using all three resistors?

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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 different values can be con4;kvcw5q4 g 8um fig.snected together in different configurations. If all three resistors are used in a circuit, how many different values of total rei;v4 c wqm k8ugs.4gf5sistance 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+t6k.h pn7 gma connected to a battery, a total power P is dissipated in the circuit. How much total pow6kma np .th+g7er is dissipated in a circuit if n identical resistors are connected in series using 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, having resistance +xmso qim(6..jf lbl 0R1 and R2, are connected in parallel, the equivalent resistance of the combinab0 iom 6lj (+qsfxm.l.tion 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 resistanceqk0m: ad)(jdz of 12Ω when operating at 120 vmza0q)d(j dk :olts. What is the minimum 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 dissipating 3d);ulak8j 0ml6 watts of pl)8u kd0l;m ajower?

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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 d e+ 8*hfio2cs s+ykt4itg51grraws 13 amperes of current when connected to 120 volts. If the price of el5* tsi+ or18e +kgyigcts24h fectricity 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 cost to w/kw djk 360bwkeep a 100W lightbulb lit continuously fkdkjw03w 6 wb/or 1 year at a rate 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 a p-yo/i61xt,q23 ( 6*cq rlp lvujxhcmoower of 24.0 W associated with the bulb. Which one of the following choi y2* 3q(/u l-tcqo6 1vxh,mpcoijr 6xlces best represents the resistance 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 ofv8nidij+t s -vg/4v pv, ccrh1e)x5xh7 xb:z1 six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a)ti 4vp ,h- vb :n81xci1vrzsev+ x5g 7/djhxc single circuit protected by a 20 ampere fuse, 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 ci)qz4km yw:lul w)cj(z ..rw7g rcuit as sl:.4m wq c(r k l)).zwuzjgyw7hown to the right.
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 to form a simplsm 1pd7/rlfwg/ ahzs/qq0 87ne circuit a wsdqq/ 7m 8 szg10hrp/n7f/las shown 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 idea8s5jbw0oqjm 6 qav99p l ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 am5bqwp98 j 960qjm vsoaperes.
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, a2 r(7 hbdj(h9tsj akv*n ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.h (b h7ka92*srdjvtj(
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 resibw, 2tdpey*ij xm y015+s 2ricstors are connected as shown. Wi+by p d5irx1yj ecs2 w0ti*m2,th the 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 circubn9j:hiafh ,1it shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and aajh nh:f91i, bll 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 resistancmyh+ ;-s4 iu4ph+ jbrue of the circuit shown to the right with resistances4u+h yu;jb-m hp4+ir s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 five identical resistors connected in avy xx76c y)6ot combination series and v6tx6cyy ) o7xparallel 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 : 7mt4gzh8b )f5k 5-lnrwtifpresistors connected in a combination serintif5k5b4t8rz7mgp fh ):-wl es and parallel circuit 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 circuieg4a9tfpcxt pl4 m9y4t1t9 +t t diagram, all of the bulbs are identical. Which bulb will be the b4g e9tym 944ap t1pltt xf9tc+rightest?


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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 ab f9f.8ms ln ylxhp1yy-k639d nd three resistors are connected as shown. With the switch open as shown in the diagram t-nm9l fy183l 6sh9y.bfpykxd he 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 idfnb 2sn2mjd8zc:x.ub 0u ng37eal ammeter, a switch and three resistors are connected as shown. With the switch open as n73nu ub0 c fnbmg.: 2xdsz28jshown 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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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 a,:p.3x epgkq0fdxgz*y aze:-nd three resistors are connected as shown. With the switch open as3 0azq:gkf:gxd zyp-e p*e,. x 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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