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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 rh,+ pi11wyb vcurrent exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow ti wh+ r1v,ypb1hrough 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 reogj -ce z n maf9e4lv:,(npq1 5rt,j*csistors are connected in parallel, the_________each resistor j1t*n49q,om(,efcn l zpcv:a- gjre5is 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 filamm1cl+h o4f * i yvq6qkc/*mj6qent wire of a lightbulb causes the filament to become white hot, while1m+6jo i*6*ch yq4 q/mqvfkcl 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 witskxi8 k80m 8mt-*p:peyy/iwpru m 44oh LEDs. LED is the acron*y8kmop4 iyimp x euk/80: m4st8pwr-ym 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 resistor has lengt5qc/k, hc95 mugy/ala zll:3tn.2x idh 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. What is the ratio of the new resistivity to the old resistivity of th .ag 2ci5tdm/cxl9/ :,3a hul5lk yznqe 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 o 7e5xkxg4fn t.f the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II haf4tk5 x xne.7gs 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 matericqmo7,i .)ea eal but has twice the diameter and half the length of wiq7e .m c,a)ioere 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 has length L and radius r. This piece of materia kzf/f+l+mz)trn 8ayx8dz w;.l is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of +/z z +kt8rmfd.ly; xfawz8) nthis 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 bulb. He decidenmhg y 8+mcg6weq,0 ybv8*o8d s to modify the filament. How s8ygeb*w 8q6+mn, o8cgdvmhy 0hould 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 length ank0edo(hpdhhz:5/ v .zd radius of each resistvkz h(0/5 phe h:d.zdoor 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 connect, mr mi+hs5jc/ed 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 resistor.” What is the equivalent resistance of this arrangement of four h,cj+is 5/ rmmresistors?

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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 thaf *9zakj) 8wohv d,8qv3frr;e accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The8h8)dr f3k, ozvq*aw9va;rf j 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 shoo s1jngt4n94x2b +xynwn to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagox42n4nxngsy t9j+ 1 bram
- 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 electrid y:h zvnin+1,(jzb(ical circuit at the right. If the current in all three resistors is equal, which of the following statements mus +z(jbni:,ihdz nyv1(t 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 rebwp(f.:l/zb g presents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight/ bzb :(.gplwf 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 true concerning the simple cyl7z)yn chd ;1ircuyd1 lz )7;ynhcit shown 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/sng35mjy.c ,fo z1 vc X andY are connected 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 choicvnz1g/3 5cf c,my.o sjes 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 identified resi*qfi/9wcn g(te oxv .rrb736.wx/q kjstor in 5 secondsreqgckx.fin*r7x6 q3j bo//9wv t(w. once 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 the resistors in the following simpl4as*eb.ou vqvx,3 :gdju+ tx0e circuit have the same resistance, which would dissipa 4tuxx3avu jv:*dg+eb0o,s .q te 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/uuj 9k8vosy/, the current through the 6.0 Ω resistor is 1.0 A. What8/ /ou ujk9yvs 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 adm0epadp8 vk17;.mq ybu3/ qxre connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a rex8p;ypm abq . v1ed7/d3k0uqmsistance of 3.0Ω, and R3 dissipates 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, eje 4v wfzu;l*)*19;x.wzvpc jxo -scw2d2 yqR2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipwow-p djv exz9;.;4lc** feqwj2zv2 u)cy xs1ates 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 v7p+iv6 1spgl ys2ntm0 olts. What is the maximum value of the current under these conditiovs7l2m ing p6ys0 +t1pns?

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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 7iwstm 1(ybw .gqh o0/a 60 watt lightbulb designed to operate at 120 vbgh(ioyt/ .71w0sqm wolts?

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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 az 177 xsjvn8oflows through a 4 ohm resistor that is dissipating 36 watts of powej s1v a8xn7z7or?

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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 vy-)k/ rw+-ox+ tfdvz marked "120 volt, 600 watt.” In normal uv+ zf+wod/) --tyrxv kse, 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 resistances could NOT be produced s9- za 7swol) )npgnb)by a circuit containing only three identical 6Ω resls)on9z7gpw) asb )-n istors?

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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 je2 q :yffdvf1pa t (d2bo*+2nfollowing equivalent resistances CANNOT be produced using all three res2fpdob:d+aq2tn v(1* efyf2j istors?

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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 cotkc( gvla hc(53e w 74j7iwllq2 x).ujnnected together in different configurations. If jt2e cqwu ja(l4l xhk7 lv(3ciw) 7g.5all three resistors 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 ba, dutc2ux2*4v eitn 9uttery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if unt4xe *vciut ud22, 9n 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,18q05o*9edbxb efwhh having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of thbex*h509h8 bef wo1 qde 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 operatd8xi2+ wx ;tzoing at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of wat8dxw2+ txo ;zier 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 zw: gwb*us6 ;p36 watt*b 6 zspu:wg;ws 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 sibomtqxo5rq( ;hw3t s7t0u+x +2j6edraws 13 amperes of current when connected to 120 volts.(jroo+ 2i0xt76 qt hu+twq;xmbss 53e 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 much would it cost toe.1btni-qjsr s:jxl*1g0 o2zin dp7 ( keep a 100W lightbulb lit continuously for 1 year at a pdtslzi :1s e7jjirnx0 g2(1q bo-n .*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 throl;00fc f,rc ) cxy:xdr-y,de)uyh 8p dugh a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choicd yr-cdxh);pyu0 xld f)fr,eyc 08,: ces 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 of2) r5rr s)f4nmcm c0cd-2rnbn six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected byrsrnmc4d -bnr)f m025)r ncc2 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 ty/7pfwf7m c b(.gwd3jo four resistors to form a simple circuit as shown to .7b3cfgm dj7 /fp(wwythe 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 resistof/s) zir*udglz-o.rw;* r v v ukyv48(rs to form a simple circuit as shown to the rir. rr () y*; *lkfz8vz4gsu-odvuwv/ight.
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 sb :u oh6/stis6rf, tw,witch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 6:tbrwf h, s o,t6/uis2.0 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 switch and three resistorsfnwpxq1)r9j0 y7 2xa+l iun 3h are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampyu 13nql2wpr i9x7) hxjnf+0a eres.
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 swi2 :6 tn6k0rs)i1 rfa y0ob+dhbuhn)phtch and three resistors are connected as shown. 0 6bhbr2n nh ysrp0f1at)hki6o d: )+uWith 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 circuit shown pd *45jhpao4 1fm+nz-u60p m xlr sxw5f ne7;tto the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resista5jox+rn ma5fs ppm 6nd4 wl;e14 u*f xzp0t7h-nce, 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 resistance of the c4kqc +f ktpf m:6+ar*tircuit shown to the right with resistanc kqf4ct rk6pt :a+fm+*es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 cop 0anidcv mccu7e 48p )/4 yg81ms6phqnnected in a combination series and parallel circuit tone y4 cs4cq uv8m6ph07ad8 )1p/gpimc 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 bpsv .nlly**g :; j0dxjelow shows five identical resistors connected in a combination sed.0*p;s lxg*jnv:y ljries 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, akx-q(aa p 8/)l9mwodq ll of the bulbs are identical. Which bulb will be theadpqx wa( o-8lm)k9q/ 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 ammeter, a switch and thr g p+ elvkc/3 g:+hmkj(5+kondee resistors are connected as shown. With the switch open as shown in them3( keconpglh vk5/ j++:g+ dk 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 tg9y--r npdys*hree resistors are connected as shown. With the switch open as shown in the-*ysd y9prn -g 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 and three resz y:2 rd-bpls5istors are connect-drzy5b2 ps:l ed as shown. 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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