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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 electricn2 tn w7pwea+4 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 and the directiow4n w2e p7atn+n 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 k1t )gc: nsh.w51yb4mmmj b7 bare connected in parallel, the_________each resistor is thmw k4b5hyj m1b) :nsgm1ct7 .be 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 ct +u gth;ff6/aauses the filament to become white hot, while the larger wires connected to t + tgatfh;/fu6he 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 is iz/l rlt ;zkh:s2f2 (kthe acronym for which one of the followin2fl ri:tz k/ks2(lz;hg 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 graphit tamdct2k8(u: hex r6+e resistor 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 1/8u6hrtat e+xm2(: ckd2 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 thedv6q1a. epg; p:zxv7t same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resistae1dvzv6:q t.;x pp 7gance

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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 th wtvrc2y1r9)4knz ao7e same material but has twice the diameter and half the length of wire X. If wir)w4n 1 tyrz7ak9 cvr2oe 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 mate3i 2k* +hlgruqkujg8)3us;bxv 0ru5 crial is then drawn so that ib 3 3uqxvc ij +sg8*uu;lu50g)2rkrhkt 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 w fsaiu:gt3(es7*+ odcv:g phd4 use,,kj,en+ants to make a brighter light bulb. He decides to modify the filas u is:j t4e3d+gkd,vac* ph f:n7 u(ge,,o+esment. 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 saml3ut3v(ak2*k 6* i pznf. lbkme material. The length and radius of each 6fi.k v* ll*( z 3kpkmnautb32resistor 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 p yua1s()5ap8r p*yud 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.” uus(pr81*y adp )ap y5What 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 diagramsyl750 ( *vunfcjei :n has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter rea vfn *5i:7(ue j0cynlsding 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 bulbs 1*ow qu9 3yd q* +o1* .1njii/ejanmtkq, 2, and 3 q +iny 3*qowq*e/oin j.uak9*m1dj t1- represented as resistors 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 simplznrgveb5f:.) y-; tgse electrical circuit at the right. If the current in all three resistors is equal, which of the fo.ry ;5e fz -nvggb):tsllowing 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 6gjm+(v2 g, bmoi0ln ocircuit composed of 5 identical light bulbs and 2 flashlight cells. Which bu ,lgv0mb o(ig+j n6om2lb (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 ciw:*kn bd7e3b ercuit shown where resistors R1, R2 and R3 eknd:*3 b7ewb 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 battery. Bulb X is bri4 lux 9mt/p7ahghter than bulb Y. Assume all circuit elements / 9mxhtu 47palare ideal. If bulbs X andY are connected 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 h2yuaaokksj o/n p37j-: w )j*pass through the identified resistor in 5 seconds once the circuit was clop:u-hj )a/jj k2ak 7s*yono 3wsed?


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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 z7-xjcp. :qy cf0aq6m following simple circuit have the sc 7y jqpx.qa6c:0zm f-ame resistance, 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 accompanyingw* v9w :gkjz(p9f 1p5ntk7lce circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What i(fvpe 959n:pwct lk1z*j7kwg s 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 serisnbt9 6:o d+ez.-v5ltk/cuwh es to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6+o/vudel hc.t5kbn 9-:zt ws 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 R1,9e1qd o+dt 1u-lnoan0 isn7 p- R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 90l-qpnn +oi7 dadn-to1 use1dissipates 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 raq ry agkt+z54(ted 1200 watts and 120 volts. What is the maximum value of the current under these condk5 z4tgy+ qra(itions?

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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 oper9.rm3z cm1kuoate at 120 vozc1o m39ukr .mlts?

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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 e4+mlnjjc*doh-mfso(zu1 l :+zsj)3 ohm resistor that is dissipating 36 wathjsofzncm-lze(+ ju4*so m31l+d):j 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 clot 9ddmm 0*72wl0 nmrutcw8sv,ches is marked "120 volt, 600 watt.” In normal* v7cmld,n9wmm2c r0tw d su80 use, 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 poym c url/vx y*a ( ;8w-cq.ws;(lmv1sroduced by a circuit containing only three identical 6Ω resix/mq1y8vcvow scy -w(a ;;s(r llu*.mstors?

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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 follfhja d. 7ui:-xowing equivalent resijxh a7-du .f:istances 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 different values can be connected e x njn6s67m f*vx1g,ntogether in different configurations. If all three resistors are used in a circuit, how many different values of totalngnxmnxe6 s6 7vj1*, f 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 tot3.) w tqtyldn h-+iipo,l)zb+al 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 re+ ))tq3yb lnli-piz+h t.,wdosistance 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 conneka xy3u,i vk1,cted in parallel, the equx3i 1,kavk yu,ivalent resistance 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 sh9 d uod4l4mnz: ba*g r9pb/u;uch that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount/a49o bpdzb:du u hr n9*4g;ml 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 i.;yi00rs y4+mfy pwvx s dissipating 36 watts of poxw+.fysym0p40i ;y rvwer?

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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 cl.j q pipep4;rgf7jvi) 0-bf)onnected to 120 volts. If the price of epjbjf f.7q p -)ipg;iv rl)04electricity 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 i+ekc0tdr 7o,y8i1bu zt cost to keep a 100W lightbulb lit continuously for 1 year ati dozuc,8 + beykrt710 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 lightbul:a-ccxawo- q3y3;/pr h5e 2zi fmdwd9b results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of -dzao -m 3y3e wcad25cpqi rwhf;:x9/ 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 a0 lrp9s, se9wtt 500 watts in a 120 V circuit. If all computerspwetr,ls90s 9 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 connected to 4u t*wtgkm*i0 four resistors to form a simple circuit as shown to mt 0tk4**g wiuthe 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 fours-zu i)hx rg03 r/iq7a resistors to form a simple circuit a03 rg/uqii )ax7 hrsz-s shown 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 ammeter, a switch and tw3lc 4 :ryao1ye5da//s2pqt vhree resistors are connected as shown. With the switch open as shown in the4qw1v:re/2 / asyytpa lod3c5 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 battery, an ideal ammeter, a switch and threeu31auv0 e 1mxm resistors are connected as shown. With the0em1ua1 3xumv 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,saz/ t +0lb,ov4rmav switch and three resistors are connected as shown. Withr4,mbl a/st+azvv 0,o 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 circu5-loy2 ek*adpit shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the bokdy*ea-52p lattery 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 resistance of the circuzq t;p2+wxo41d ;ip vait shown to the right with resistances v+txoz2 ;q 4 pipda1;w$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connecgtx qo sz*+-3ated in a combination series and a3xt* qosg- +zparallel 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 resi;mg8tb 5fqn7.,q yo0y1 wvullstors connected in a combination series and parallel circuit to a voltage v50ygw8,tlmq 7 nbf1y; .lquo 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 d rbdp. w5ih/f9cnc+qq,i 7f 8hiagram, all of the bulbs are identical. Which bulbnhd 5pq iq,97f fri8w.ccb/h+ will 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 a;fu y gnps vz2ulmg)+;(3)ooimmeter, a switch and three resistors are connected as shown. With thely sz+up)oi);fnuvg3(o m g;2 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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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,y:i(s4 ocnxjo4v4 bp / a switch and three resistors are connected as shownypb oosx ji4:c/v n4(4. With 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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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 threex*x : bd0u ds7di8vl.t resistors are connected as shown. With thli b0.*xtdx8d:d7 vuse 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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