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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 thx .zny 3 c.m awup-bbc2sb1+5be metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and xw.+ 2y1us-p.bncz m35abbbcthe 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 paralle0ai 25 yf+ja; brg;kyel, the_________each resistor is the sam;ay 0g; e+yj bk52airfe.

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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 ofcrf7nf7gj p jsmw:l6z68 *3sb a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulbs7 fcj z 8mngsp7wj6f3r:l *b6 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 ligwz c5) +ey6-qxr 2xaafhts are being replaced with LEDs. LED is the acronym foy xa wz6q -5xecf2ra)+r 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 ( 3ul;i8s-:y98qc) ovxozlptmlddd/ graphite resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must bed mlc:qlotiy8(/-zd ;p9 3) lxod8svu 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 wirxxwui 9n 0 g7hzd)x; *9el4 ,.rwkzfwye II are made of the same material. Wire II has twice the diameter and twice the 4 gl yd wuxz7iwx r,f)h ekx9.wz;n0*9length 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 the same material but has twice the diameter and haliiz 6 tgo j+757mm8i6sud 4g2clj tv/ef the length of wire X. If wire X has a resistance of R then/oju6mvgei8 64 2js lc7ti5dg + imz7t 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 piece of n:(/wsoyl j( 7zn 6dlematerial is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material ld :j zn6yn/(ew(7o slbecause 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 bulb. He decides -)xzztq +rtg)qu5w y4 to modify thqytzq t4)x w)+gruz-5e 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 samfu0u8 r+ jvwg1nv9kc ;k z1(fxe material. The length and radius of each resistor+ 9f1(unuv k;vf r1c 08zjgwxk 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 battkkjw),k tc/ m,vyl5l :ery in the following way: “Two resistors are connected in series. This combination of two resistors is connectedl tm,yv k5):w/, cljkk in parallel to a third resistor. This set of three resistors is connected in series 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 accompany6wcjy,e;ys j:x*h 2nej c4(uting circuit diagram has internal resistance 10.0 kW and the amm(*enxe,c cu;64y j j tj:h2swyeter has internal resistance 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 circuit shown to the right. The threno5xa2;+uo*qy pa8uoe bulbs 1, 2, and 3 - represented as resion+po ua qua;58y*o 2xstors 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 electrical circuit at the right. If the c;1/qr-ai /qnrnzv7czzi :cv+ urrent in all triq71:q/-zcz ;arn vzi /vc+ nhree 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 sdu:qxrv61ozbp hz( 10imple electric circuit composed of 5 identical light bulbs and 2 flashli vh1qdpu6b:(x 1rzz0o ght 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 truehzaw* m2ivwp t .ua27- concerning the simple circuit shown where resistors R1, R2 and R3 iup.w*2ha awvt7- m2z 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 i 7b.*hg mc3s,to,4otbh/r llgncf: .tn series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are cs gn o. hrl*g74./lohmtcbctb, f3,:tonnected in parallel with each other to the same 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 will pass through the igy3h(-p: f0s dxag2 wndentified resistor in 5 seconds once the circuit was closed? n3- a dy:2g(hwxs0g pf


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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 h.s.np x1 tarc-c r)5t simple circuit have the same resistance, r1a.t x rcs)-n5h.tpcwhich 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 reswojor5yp7it/ 7k j8o*istor is 1.0 A. What is the power supply voltage V? 8jwy* 7to /o o7ikprj5


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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 co 74mb7(emju zrnnected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. What is the voltage acrou4r bm j7mz7e(ss 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 resistop:2i:bvwh k. )mnp e5x*u6mc) 5txk.zxwwx9ors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What tvu z::*xco m2 kxkmpw)6.i)xw5xeb hn. p9w5is 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 f w58uc)(wprmic(3/szf / r ivis rated 1200 watts and 120 volts. What is the maximum value of the current under these conditii((/8scfr5 iwrw)mufzv c / 3pons?

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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 liabx6j:10grvqe2 l uk3ghtbulb designed to operate at 120 voll: 03uve6r1gqbaxk2 j ts?

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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 f8 egoyro.z)i+wfi2 ) 4 ohm resistor that is dissipating 36 watiowgi2oz)f . )fy8e+r ts 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 clothes is marked "120 volt, 600 q9m+g6s t-ewskyi7+ r watt.” In normal use, the currewgis6- mts9ke ry q+7+nt 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 circaclqhs(t t)/t5s5 nu7 *ms q53s) gdwouit containing only three sghq os sw 53tl(*d5qmc)n 5t /au7st)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 the following eq0 pfda,lafhosxgj *h(8 -u7u)uivalent resistances CANNOT be (,lpjgx8-da)hf*f a usoh7u 0 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 connected together in differenr k4oya;+5a :y* p,rfjnoy. dot configurations. If all three resistors are used in a circuit, how many differk4 ;oy,y+ao*orynaj.5r f:d p ent 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 ipu,pb 9fjhs.4bgq)s9s dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connectep,hbg b )qfp9ssu.94j d 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 R1 and R2, are connected in pp4v u:e3ftpx +93q xvwsn*1s d2ylf bqx9 65adarallel, the equivalent resistaxv3xwapb 9u5sf14s3 *ex 9f+: qdn lt2 d6ypqvnce of the combination 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 1af:z2*x )j)d dckxsjp;0d/ rk8xj s7d 2Ω when operatiapz)*jrs x2xddx/sdc8j k f j0 7);d:kng at 120 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 resistor that is dissipating 36 waq)s/*v s8pggv vqg/s*vp8s) gtts 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 aw2e vwzf-cmvwgi/ 281mperes of current when connected to 120 volts. Iwv w/wg12 fz8e vm2c-if the 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 mg,q +ytl,g x m(/ffhi,uch would it cost to keep a 100W lightbulb lit continuously for 1 yearqf xfi(,t,,/hmyg l+g 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. :*jxqu caa6z a lightbulb results in a power of 24.0 W associated with the bulb. Which ocaaj zq*.:6 xune of the following choices 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 of six owns a computer ra(h1oqgchc zs /oc0., 7k bd(zjted at 500 watts in a 120 V 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 operatingdzh/,z0(b7oo k1q.c (jgcs ch 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 conne-n n1fh )1rfegcted to four resistors to form a simple circuit as shown to the gnne)r-f f11hright.
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 battery7p-4m*9sh+9m; swc zgl lg tezvt /v9b is connected to four resistors to form a simple circuit as shown to the4lc+mv 7smse;g 9-v 9 bl h*g/tptwz9z 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 s535j7bu xm) v2 /i;otqtysiq connected as shown. With the switch open as shown in the diagr)u 25to;qysq5s7ixt3 ib/m jvam 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 batt6 klw,ke,a,br 8llo.fery, an ideal ammeter, a switch and three resistors are connected as shown. Wi,klfkebloa .,,r l6w8th the 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 resistors are 8j7hwz brn;)k s. livdm o2++aconnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0n .h2 dsi 7mvz8jo) lb;+awk+r 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 equiva;n v fnbi,7 ee2yhc5:(sl ic5mlent resistance? Assume that all wires are ideal, the battccn iis7en;2 :,lf(5bvyem5hery has no internal 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 reso- w36kj1yhwuistance of the circuit shown to the right with resistance 3wok6yju-w1hs $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 .5/iu blrpe;p shows five identical resistors connected in a combination series andl; 5./riupbpe 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 an d; 2sjd16bffbuyyg* 0 +-xridentical resistors connected in a combination ser2bdg 01yfsx *ynud -rja+ f;b6ies 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 circuit diagram, all o*z ao sl/ys6l)f the bulbs are identical. Which bulb will be the brighsllo*)s/z 6ay test?


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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 kwvasm7s4,cg- hekik7f: *+w resistors are connected as shown. With the switch open as evkm k+ w i7f-kahw,s7g:*s4cshown 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 ammeton1m4f t+zzc w(6bw3 f df1y-ter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammetf(3 wbty1t1m- zodf4zcn6+fwer 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 amzm: /esmv y;gws3*o r+meter, a switch and three resistors are connected as shown. With the switch open as shown in thm: gsz/ rys eo*vwm;3+e diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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