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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 metal resistor cd iq4 .actm-p-onnected to the battery. Which one of the following choices best describes the direction of electron flow through the r . m-t-4paidqcesistor 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 con (vxoy .sr/id0nected in parallel, the_________each resis(svd/oiyxr0 . tor is 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 causesx6 vopcwf kk1zmb8,0:osi d // the filament to become white hot, while :0p ,m k8i/cooz1x /w6fv sdbkthe 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 with LEDs s,g dn22v h/wou-+g 0p.b9 yi) 7wuvvl:uqysc. LED is the acronyw uupv20,qy)hn7/:ogsicd . b gw-uy2v vs+l9m for which one of the 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 resistovs- qqrxl*64qjc)-fg 4tlw;or has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in half so that the new length is 1/2 L. Whaqljqtx r64;-swgql-4c v*)fot 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 yic*8v2w dr t3of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resisti8cdt2 *w3yvrance

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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 tud5fac /e3e-j z0z. b;1frnda wice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistancee-1r cda5;/f3n d.uz0eafbz j 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 h mq;fz06bs:u bas length L and radius r. This piece of material is then drawn so that it ibz; 0umfqs6: bs 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 Edisk( vc us,2x)- ojh 6x53qpktbjon wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produc2j-6xjbx u,kc(s35qt po)k hv e 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 :-a 7ha6uqysk the same material. The length and radius of eah-k6:7 yaaqsuch 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 co 4+2et *ryfbavnnected 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 series to a fourth rey4 te*vfa +rb2sistor.” 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)nmd;*up 6cakn;h u;: (y qq+ujhs j3r accompanying circuit diagram 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 most( uj hp)hk 6ajuq3ncq+*sy:;ndur;;m 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 compw533j8o tm.cbf+rzwal s5 +.sbn c*k dound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the w 3sb+8.5b5*m l c.ncsjzfwa3or k +tddiagram
- 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 at the right fy5 6;seulq(j. If the current in all three resistors is equal, which of 5q jyse6l;f u(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 atisvbn-* j6k a.ija,y : right represents a simple electric circuit composed of 5 identiyvkaj -,ins :j .*6abical light bulbs 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 folkeg +lw )tqr j-((pd(jlowing statements is NOT true concerning the simple circuit sho(wtl)j-pg k(+(jr qd ewn where 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 to a batteri roz 6as2(ciflh.265z jnwv 2y. 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 followingi fa 26z l2hjnoi52 w(z.cs6rv 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 will pass through the identii m xsz-y2a5qq(jy5w (fied resistor in 5 seconds once the circuit waszm5y (( xq-2ays iw5jq 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 3*,hm1f- tvdmiof e n0loh 2v:following simple circuit have the same resme -20fti odlvomn:vh,1f3h *istance, 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 thr,s(,,waj hgd pough the 6.0 Ω resistor is 1 ,( djsw,gh,pa.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 R1, R2, and R3 are connected in series to a batteryij5eok +t;vzdb hd /:ykq),2m. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dk)bj k:e qmzyd/5h2o d+,t;i vissipates 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 mdl5j(z n7,(ft t4izip4p q9e, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in R3j9 it(54qf zl( nmped7tpz i4,?

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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 wa:+h f8p ct,niztts and 120 volts. What is the maximum value ofh pin:fc+8tz, 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 deip)e omrt m u: 6x7.5py0;qghzsigned to operate at 120 vo0gu h m)ixq5ozrm7 t e;yp.6p:lts?

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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 dissipating 36 waw0*+ mi2klvio8u 4e;in31q ycv ;glmztts o0*lymok+e2vi u4;w iq;z1 g 8cnmil3vf 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 clothes is marked "120 vox-h 2:dwomib6l.ec6k nu3+9stjm es9lt, 600 watt.” In normal us.-wb2cs9ehm6 mjid+lsk9 ux3no: 6tee, 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 r. 0r+q ten)5n9puvvze pf (4tgesistances could NOT be produced by a circuit containi.q04 + vz)pn pnetv9 rf(gute5ng only three identical 6Ω 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 1.0 Ω resistors. Which of thh lq6kd,tm)4 fe following equivalent resistances CANNOT be produced using all t 46hl),qfktm dhree 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 resistotkn)v;a(stug zd-2l-gv5kk . rs of different values can be connected together in different configurations. If all three resist-l utkzs)kd; (kgt5 g .2-vanvors are used in a circuit, 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 tota h.wcg9snpst.7,o 9xe 2l2hubmxjq9) im8ln *l power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same battery? Assume the internal resistance o2w)l2*ceh 7ng ,mu98.sm pox9q shbxlnti9 .jf 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 R1 and R2, are connec5 zoogvvhpr1n x+ym/vph(+,7 7 nz ;gqted in parallel, the equivalent resistance of the combinzvno/zrghh7ox,pp(1+ng q + v v;5ym7ation 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 aq61qdfy1 ous0(a*2zm+yh f r n resistance of 12Ω when operating at 12qyq6*(mo+ 0a dur1hf1 nyz fs20 volts. 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 rr97g 5fc/hcu3ui q ;i0iifp3hesistor that is dissipating 36 wa 530g/ ip7;3 iuruhihcqciff9tts of power?

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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 j8 h9f o5rset(current when connected to 120 volts. If the price of electrici95t e8rjf s(ohty 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 wotkgoo3v .f8vfs/jl88cz( nn o-dy v: 1uld it cost to keep a 100W lightbulb lit continuously n38 ln vdgofvozsy81v /k o. 8-c(fjt:for 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 at2zro fj6(v iednu+ (bmm6 bf x5(aj1( power of 24.0 W associated with the bulb. Which one of the following choices duom+ r15j tb(e(vf2a(bx( 6jmz6i fn 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 j- 0,4u3esd3 c0cf5odonb8z n.evkc lof six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what0c fb 4uknde3v5sde-oo 0zjncl .c,38 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 qs;sw-qsa q;5 is connected to four resistors to form a simple circuit as shown to the risqss5-a;q wq;ght.
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 resistjix h;v*--e.ft 8yomv ors to form a simple circuit as sho8xe.;jfv *i-vh-y mto wn 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 amme3v3ax j-,,aer 6iocyv )pm ;muter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.cpmjr -e6o3v ai)am;3,x yvu ,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 ideal ammeter, a switch5 t3ev7m3 soan and three resistors are connected as shown. With the switch open as shown in the diagram the ae 3st 7o35vnmammeter 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 resistors are o(zg83las, qs1r:cre c*u6xzmhi4k-b th5 g* connected as shown. With the switch open as shown i5g(zkr3ts-hlbmco*4e6, c1hu arzq *xs: g8in 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, whaejp2vmm71c dk* g n)mtdbl4 *7ck kw./t is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have /j. lm7t*ck g*ekb4 )cm 1nw7m dpv2dkidentical 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 9,p*tn n92v icapwxa .v 0mn0z the right with resistanc wn p,xvz.*nnp mia0at9029cves $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 a combina lzjk:bwj6 4t 7qp0wqej0s;h4tion series ebs4tqwj jp7 6 qz0;:4k0 lhwjand parallel 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 comb31 p55wh0j*fmd awkz pination series and para5pampzw 31f5kh dj 0*wllel 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 of the bulbs are identical.t+ugz zj+,h j3 c w.7;k*bwtzmq* (zqr Which bulb will be bcz,w*r*(kg jztqqz 3+m7 ;hu+ tw.zjthe 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 batteryh:3g0i;y5 uhd)udfns , an ideal ammeter, a switch and three resistors are connected as shown. With the switch open h;u):d ng0 5h3sudyif 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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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 switch and three resistors a2 tbapspn kze/l8,jh;3+u gf/ re connected as shown. With the switch open as shown in the diagram the ammeter rea//l,uegb; h3 n2tkzjpp s8+f ads 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 z ljc ygh9i)/9are connected as shown. With the switch open as shown in t9ycilh)9/ gz jhe diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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