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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, anf- 215ljex .ijrwfx1t electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor t if51jxx2wf-jl1e .r 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_gssk+z 8+yt)v2y /ass2 jsk9j________each resistoraty+/g9 szss j +kv2) j8s2yks 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 lightbul)i jsfy)ff+vvm4r2+iwghv e6qn4 j5)b causes the filament to become white hot,j6)qvmsfv+whv)fg2 45j +f 4n)ryei i 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 with LEDs. LED ixz72 r vtqij:0s the acronym for which one of the followinx2qri t0:vjz7g 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 length L and cross-sectional area A. i8d vf0kdz mx1 ges7)9It is to be placed 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 ofd1dikv)ze097f xmg8s 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 IIkxw sc m vz,l4k(03(rw t;g8; fsiop6f.d dm2q has twice the diameter and twice the length of I. If I hask0vcdm(8rwk2;sid(4 f f l.to,;sgpmz3qw 6x 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 :2q9 nqt 1qkayjcvl1pvq7lo-m2 / fv4material but has twice the diameter and half the ly4mq 7lv9c2p2tf vlo1 kj:1vnq-/q aqength of wire X. If wire 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 ha0hw,sxz tr:axjy67 c3s length L and radius r. This piece 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 process?w,7t6a jszx3c rxh0:y

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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 decidess.wd z o 60el. o+uyo6ejg3-ql to modify the filament. How should the filamez osewy+ .ljd.olo 6-e0 qug36nt 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 resis/ m46i :jojwistors are made of the same material. The length and radius of each resistor is 4/iij m:sjow6:
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 a0vq0i +3yr tb o+u7avr 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 fourthyvi0a+ovr bruq3 07 +t 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 internal1r9zt dvlo9jr, uv3qlu* 2ee7 resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The amme e31vt dv, 9rou27jru l*qzle9ter 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 three q,l* (5z )kj7mfcm:5 qdwdqix bulbs 1, 2, and 3 - represented as resistors in th(f,m7wmq:)*z55x iq ckdjqlde 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. Ik),.2.*vpvur2 m0/za ohbyqwa 3ka wg4d:itpf the current in all three resistors i)pa k3 , q:zk4 ibpu vdtag./mwha2yv0wor .*2s 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 .l3yx4nl tcj8circuit composed of 5 identical light bulbs and 2 flashlight cells.t4lxj. l8cn3y 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 th +uzjd2.n1ti-urklr03 mro r5 e simple circuit shown where resistors R1, R2 and R3 are have equzrr5ru l-ork0t2u 3m+ 1.njidal 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 c 0.c 5vc9wmtgxl/9ppconnected 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 cho9g 5 c. 9/cvpcltw0xmpices 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 identkbt,o5fno9 jxift6l f0/+ :c hified resistor in 5 seconds n+ :xi6of,ok/ ht0 jbtffc5 9lonce 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 t9c 2kx5uaaveh) g vg19he resistors in the following simple circuit have the same resistance, which v2hkc)euga5ga vx91 9would 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 thehm z t i-,q1i(pxgz;k. 6.0 Ω resistor is 1.0 A. What is the power supply voltage V? gz, xmti zp-.hqik; 1(


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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 conne6 h(zs ,n 0jkl,cz*ozpcted 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 acrosz,o(jsnpz zk 0cl, *h6s 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 connected8d:/y;u bgst ob r2+zw)hnc.c in parallel to a battery. Suppose R1 ;nd8ybcc+uth 2/bo: srgz) . whas 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 volts. What :+7ml7 w 5fd.cudspkh-h8 klkis the maximum value of: kk-5pdml7fwhuslhc d8. 7k+ 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 o zcq-e *hhl-1btek,k/f a 60 watt lightbulb designed to operate at 120 volht*l1c,ke -h bkzq -e/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 nd6/q:x aw+(oesl4 ydflows through a 4 ohm resistor that is dissipating 36 watts of powe o+a wn 4/ye:ql(xd6dsr?

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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, 607zoqqaa1 4o3oad 1mh70 watt.” In normal use, the cuo4aa zhom7od3q1qa 17rrent 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 bp(t jr hxwtpip.( 9q51bi /)fbe produced by a circuit containing only three identical 6Ω51(q iwhp)rbtf/i.p9b t(jx p 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 equivale jux)qmx niu*vqox22 err+s v/9v6+r 6nt r * /2xxr meurjioq66 u s2vqvr++nxv9)esistances 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 difwm8b 6v utheg319rv uxuz/y;5 ferent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be proz36mr9ebut8 g/1xvv wyu 5u ;hduced?

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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 bzo.0 h 3a8xjckattery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistor0 jxho.acz3 k8s 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 R1 and R2, are connectx-5kbf. qv +mvu8+tc ked in parallel, the equivalent resistance of the combinatkx+t58bv kqum-+vfc.ion 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 when oppjw03bluw nz.j,he1.8u e. jnyh+to ev7 *e. cerating at 120 vow 3cb*.jj,n8l7. y0 t n+weee epvjh.1huo.zults. 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 dissip-ua6 ei/,kio cating 36 watts of kiuo eca-6,/i 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 draw*1u+/gqnjdv kp *vi9 js 13 amperes of current when connected to 120 volts. If the price of evn9/ pj 1qv*j+gdi*u klectricity 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 m .y ql2rt+*ips18 zwamffjda4;,k x k:5n3iifuch would it cost to keep a 100W lightbulb lit continuo4fsirznla i2*:kkj .1xa +;yqwi,5 fdtm fp 83usly 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 -e 1 -vtcgqfi.aj)0s n7dwn,m in a power of 24.0 W associated with the bulb. Which one of the following choices best re7me st- qj-nwav gfi10d.cn), presents 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 500 watts in :odsv7pbgd17a 120 V circuit. If all computers are p7ds1b:7 g povdlugged 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 connected to four resistors to form a simple c *n9x1m8g2( 0 mgbfbhjuu:kx aircuit as shown to the right. xb:b0 ja9n*1hu 2gkufg(mx 8m
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 battew4b7f r ;ecwde; 0ddy,ry is connected to four resistors to form a simple circuit as shown to the right. dyde cr ;7fw4;,dw e0b
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 q1lz c1 re/o5jand three resistors are connected as shown. With the switch open as shown in the diagram the ammeter /oc5lr 1q1ejzreads 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 ideal ammetev,25cdpw o n10cu7trutv1cy -r, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amp1,1vw 27ccdtvp t yruo u-n5c0eres.
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 rexh c w/cim2/)l 4m7vdjsistors are connected as shown. With the switch open as shown in the diagram the ammetecvi) /2j7lx mw/d m4hcr 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, whas7bsrwi:lk:i)- .awo t is the equivalent resistance? Assume thi:s7saikb o.l) wwr :-at all wires are ideal, the battery 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 r o4rc;wr )yj)hesistance of the circuit shown to the right with resiryc jh)4)o;wr stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 con5 -cwcr;fk rb+nected in a combination series anfrkc r5+ wcb;-d 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 combq(t hiismlre:j2k46l 653 v ikination series and parallel circuit to a voltage sos:q3mtlv 5 6(ikkiej24r hl6iurce.
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 id4gm6o- x0 zdd,jn4jho entical. Which bulb will be the brighted0h6 nox,gozj-4 m4 jdst?


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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 threennpabzz+u;eks sl:)m5g2 r 1 ,c7x4ph resistors are connected as shown. With the switch open as shown in the diagram the als)hznxp1r7e45ugpcks +2ma,:n z;bmmeter 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 ammeqzvz j4, jet9wd3i4s(ter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amme3tsi,4qzze vjj9d( 4wter reads 2.0 amperes.
With the switch open, what must be the voltage supplied by the battery?


参考答案:    
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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 resp s.. o2tqq8w38x*9ylo ukyvuistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 29o kqu.8os y*.wpu xlvy83qt2.0 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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