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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 in the me ruqaiw.01n ; )it;nrotal resistor connected to the battir0iq)a;.o1 wntn ; ruery. 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 parallel, the_________each resim3c+od.fm; vnji. 5dh stor is the s3+imc 5d;vfdm.n. ojh ame.

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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 cz 2 eabpqo i34/mst2l )6e erxgpw66.a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remaimclt4w/ gpp36re.6qsxzib6 2)a 2e eon 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 hou5m6 txniz0h o g6aae95sehold lights are being replaced with LEDs. LED is the acronym for which one of the foa605thig5ozan me69x llowing 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 6 jx12;2avj ubj4thduf ht1x s8npnma* -)d6plength L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in half so thatjudxps ubxh2af1dnt 6*jh8j6a;-p) nv214tm 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 mau2 swvf5 dvq2z0u 6p0qterial. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resiqud506w2vs vp fq0zu2stance

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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 pk 7dn e;e/;irof the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R the/;r7n ;k pieden 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 ,,vr7lyovz n.r. This piece of material is then drawn . , ylzvr,vno7so that it is a cylinder with new length 2L. What happens to the resistance of this material 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 light 0zcd+tws 7f 8abulb. He decides to modify the filament. How should the filament of a lightbulb be modified in orz+tf d0w7acs 8der 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 cylindrica7d-vc t9zsxrw* 4d6md -8jfc-qz7gnfl resistors are made of the same material. The length and radius or*v94tcmdzfz dc6jsq- g8f7 -- dn7 xwf 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 resistan9+c*(jne)gk a fb*r e;ftv eu(ce R, are connected to a battery in 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 seu *f kt*e( fa)9vgne+cj(;er bries 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 y)vmgn 9z.2wc*am:jk 6q 76y czhs5zr accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm.mc:qrzc7 a2gv6m y*zjnksz .9y)h 65 w 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 circuit shown to the r;u16hy k5xfx)+zd -s,httoo right. The three bulbs 1, 2, and 3 - represented as resistors in the dtu+, d5 yx;zoh -16rx kfht)osiagram
- 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 electrical circuit at9a7 m wk6mad/j0 q0y.h sbewv5 the right. If the current in all three resistors is equal, whi5e jk/.ahqw0wsmd 6ayv7mb0 9ch 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 )5nglxkpmpt t5a n p,g;0t ;a7represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whp p5pg5ltn)mt k n7;taxag0 ,;ich 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 thet ,9ovd-;t)+m ra9wsp0nywa t-ak9m b simple circuit shown wher-;pnawatoydb 9+mkrvt)w 9,sm 9a0 -te resistors R1, R2 and R3 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 :u * :e8lpmx5z0/gi dgf6ys sjto 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 sampdj glxue/ s:if:8yzg*m s056e battery, which one of the following choices best 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 wikam 6h.)9oxhujf; 50h,gw t wlll pass through the identified resistor in 5 seconds once the ci0)jh 65ah w uhxmwol9.k;gft,rcuit 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 following si qm *wzze.30lla wq*zadq0c8 2mple circuit have the same resistance, which would dissipate the greaz0 clem 3q08 .a2ladzzq wq*w*test 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 diag ,1itm:cst:k oram, the current through the 6.0 Ω resistor is t1:c,m sktoi: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 resistou bn(iy2r*jnoa2 x2.ers R1, 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 bun or .ai*222e (jynxdissipates 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 batapi z21kc kg+(927tehg:vgydtery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current iedt2 k7y1+v zki gh:cp2(9gagn 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+md ie)1s0rbmmg/ty8( fb:s m and 120 volts. What is the maximum value of the current under these b: me0t1d)m+fmbism ( /s yrg8conditions?

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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 designed to operate at mv368rtupl9 2f1q*mnyj c r j1120 vol631 pf1 *8r9jj nl mytcqr2mvuts?

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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 resistor that is dir.fc rk kx67g8ssipating 36 watts of pgk7r kc8xr f.6ower?

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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 usedgz,dm/9hhj y( to press clothes is marked "120 volt, 600 watt.” In normal use, the ,9h(mgyjdh/zcurrent 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 cirtttw5 . w)*dy7xm3tpg cuit containing only three identical 6Ω re t.3ygtm5 tt)7pwxdw*sistors?

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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. Whxk m/tb m ox2in+:*f4fij fb5ab;wh,9ich of the following equivalent resistances CANNOT be produced using all three resisto;/amfox5w+i kxnb :tbhj,if9* b2fm4rs?

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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 connected x0vd0 ) xabuo 7bgo1ft f77q(ltogether in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be prod0doax)f g17xb7o tlq(b70f vu uced?

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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 po7b z1 6khk5yur7lw g 9i:5lpooa+bz(dwer P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are conneckb71:yk+ 9b( phor7 5l5ozlwu dziga6ted 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, havingg b)epcfn,k.9 resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Whin egk, fcb9).pch 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 suce sa as c7n.x42vfj,8ih that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of n4 ij87c2sx.af e,vsatime 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 36 wadw5- im7o o dfk-b74gytts of pow-k - 77b5oiwdfyo gd4mer?

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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 connecu h-hoc d56n:cted to 120 volts. If thno5duhh: -c c6e price of electricity 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 keep a 100W ligd +t4.u1 ; gnpo teu,/-vwq/rwij+fabhtbulb lit continuously for 1 year at a rate twd- wgpoveq+14 fr./j,ait/;n u+ubof $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 za+) b4d hifi-a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices b4 i) ad-bizf+hest 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 of six owns a computer rated at ud0oy 9z6/ kgnrm.h7 h500 watts in a 120 V0 ug.dhy9k6mn/ 7 zrho circuit. If all computers are plugged into a 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 connectedd9)iaw:rnw98leq qx. to four resistors to form a simple circuit as shown to thw.q: )89ne9dx i qlarwe 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 ismrh,1- n0nhsx connected to four resistors to form a simple circuit as shown to the right. 1msnn x -0rhh,
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 conx p hm/dwu/l49nected as shown.mx pwl/hu 49/d With the switch open as shown 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal batt2xnu4 vvw ;n:;*nugvxery, an 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. x:vv4gn u n* u;2wnx;v
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 resistors are cdnssl um/.q 7)onnected as shown. With the switch open as shown /qms)s7 nuld. 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 the right, what is the b:x2,dk 1v9ppvq fz;d equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistorzpvbdp1dvk, ; qf:92xs 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 shown to the right with m )s,v9e+ odthsoo+ p)resistancesh++vem)s )s tod,9opo $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connectedu5 jgqsdo +m e5h;na07 in a combination series and parallel circuit to a voltage sourceu7as+ge5h m5n 0o d;jq.
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 commkd7g:uos*,0oz fvt- bination series and paodv 0uog7*tf,mz k -:srallel 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 circuit diagram, all zw736,kgv vugrn 7qeix 35avka;;h-x of the bulbs are identical. Which bulb gixrq x z5,kva-v7w; u3 nv36;7hk egawill 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 4aeb7mq.5pjh nx 2rn hs)-*lxammeter, a switch and three resistors are connected as shown. With the switch open as shown ine) rh.hjm4-*l xxs7 aq2 nbpn5 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 batteryb1ea(;osv rw1, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the a ra(1seo; vb1wmmeter 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, ;kjs.xg025adznuy: irm u -0man ideal ammeter, a switch and three resistors are connected as sh zxs0-0andmi :g2uu.k 5y;mrjown. With 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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    总分:50分 及格:30分 时间:不限时
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