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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 24o:bsrk0knd 77 clp.2civpg metal resistor connected to the battery. Which one of the following choices best describes the dil vs7 :n kc72kc4d.p0progb2irection of electron flow through 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 resistors are connected in parallel, the_________each resisap ; my;f i1qa pg7:nrw:v,4 5pldl;ostor is th4;;5:f; paqi po 71anpsldylwr ,gmv:e 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 causes the fw s25ik/hmfr54x :xl nz7gxw9 ilament to become white hot, while the larger gxrwnfsxhzl x 2k 9im:54w7/5 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 lightsrsa;g,eng5-b-hj y osp1bh l7 4a)8dg are being replaced with LEDs. LED is the acronym for which one of th;n o b4sh-1,bgs r)e 75apgaj d8yl-hge 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 length L and cross-sectio dmr5tktta5z a7t2dt. fz-39enal area A. It is to be placed into a circuit, but it first must be cut 9 -f5t z e 3kzamd.dat7ttt52rin 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 wire II are made of the same material. Wire II has twi/ ghsi0rf(ldx6+a;6 ayyu9w gce the diametru0;asd/hl6+fy 6w(ag 9gyxi er and twice the length 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 fr o:gp)8tv9,yx8 z lwand half the length of wire X. If wire X hapty8zx,ro )89 f:wvlgs 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 piect5svhuw(-p )njax 1:ne of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this materialwsn )xj5ha-ptu:1v (n 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 brightertbc6 va,r;ae+a9g ol( light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce+,(acra gablto96v;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 the same material. The length and9t e (g8q.du )esq8e)o fxdw*a radius of each resistor is: s.(ew *o g8qde)ed)q u98aftx
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, eacs3if:l4oxz j -h of resistance R, are connected to a battery in the following way: “Two resisto x4l:z3s ij-fors 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 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 internal re 0 w.* 3rnlpynl9mu,cbsistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter9r puc llb0ny, n3w.*m 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 bulb/dnbz* i8x9r+icf euq fy7h,o*) e,ua s 1, 2, and 3 - represexu7zdy,f9 fqureaebo+8i ,*/hc *)innted 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 simple electrical circuit at the3/ziu vqby2a znj01f- right. If the current in all three resistorszvf31 y-/ina buqz0j2 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 bj3qi q1ktw70represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bqi qjw3 1k07tbulb (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 st0h)8 mw(n hydike .*nuatements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resihen my du(i)h0w*8k.n stances?


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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 connecte9y2w(-jg og qi-jr2qod in series to a battery. Bulb X is brighter than bulb Y. Assumerg22 iqjq jg9-owyo- ( 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 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 ij9et q9l)g(g0fd -f qedentified resistor in 5 seconds once the fd e(qq-lt9e)j fg09g 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 y1mm84y,gb4qa rz f, a simple circuit have the same resistance, which would dissipate y1 a44, yq bfm8mzra,gthe 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 throuqe 8 j5rxxk91uj70mg-cjj2 rdgh the 6.0 Ω resistor is 1.0 A. What is the power suppl9r1dx j7u85jxjc- g2rkq 0mejy 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 k3yq -vxu .j6yy +o/y *ca1tvlR3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipatelc3oyyvyuaxj. tk16v q/-+ *y s 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 differena60 oxr5l*u-kjcp 4j ,bveu. lt resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipa 4lbk0 avepu ,r *ljc6j-xu5o.tes 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 v ztjm *.cq 4y4l tsna3+qix2w5olts. What is the maximum value of the current under these condiqxts + jitl3a4ny5 . zq2cmw4*tions?

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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 l +woivh0e +6fgightbulb designed to operate at 120 v 0woi+ gveh6f+olts?

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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 throughm hae8e(l f;9r a 4 ohm resistor that is dissipating 36 watts of power lh aeref;m(98?

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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 markeda wo 0kknw r+-*7ulrsb,jg3a+ "120 volt, 600 watt.” In normal use, the currentwoukn+r-jsw,+ kb3r *7g0a la 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 coul(xq pq.pw4w1,etwi/;w tuq l:5hf z)ad NOT be produced by a circuit containing only three ident5 ,wt( pl wqat.i41w;u: hxp)/fwqezqical 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 of9u)a+ni9eqc7lb (di d the following equivalent resistances CANNOT be produanilq9)d(ud +ei7 9cbced 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 ovn qk7n7jb1rcp w t0c//3pq4connected together in different con0pnqq7v7wnoptbkcc /4 / rj31figurations. If all 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 riu k0irmgj- sn6/2 qpqn,--le esistor is connected to a battery, a total 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 san g- , iqe-qm/-rlij2up0ns k6me 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 R1azm 8b7nbl8wio- r5bbi 8 8f9l and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is correct?b8i 8wli7 zrbn fmbb -o9al858

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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 resis pu;zna 6n/w;itance of 12Ω when operating at 120 volts. What is the minimum amount nnwp6 ;i/u;azof 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 v .j,tn9x3typ through a 4 ohm resistor that is dissipating 36 wa.3y ntp,tvxj 9tts 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 of6+ro)m+ e(ohcjoow: n2*y n*uvp p6b+;nryc k current when connected to 120 volts. If tykj6cnor)h *6vob onpoe*n :mp; (+r+ +ycu w2he 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 to keep i/gzn-;9yjqk a 100W lightbulb lit continuously for 1 year9i y ;n-gjzqk/ 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 ligh8 .+mgfd reqo(s0p /dvtbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices q+/.geo 0 pdrv md8fs(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 rated at 5r3 fv8i 5sij3jnbv*x,00 watts in a 120 V circuit. If all computers are plugged into a single circuit v ,5i 3jbn3 vr8*jisfxprotected 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 batteryla7f/ 2;,q j ikg2mvkp is connected to four resistors to form a simple circuit as shown to the r l;vig2 ,qjp7k ak/fm2ight.
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 resistors to fo f(jfjr*m1fx9 rm a simple circuit as shown to the right 1f*9 frmjf(jx.
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 0vndfuh2g7euj )d f gq)/o2*gideal ammeter, a switch and three resistors are connected as shown. With the switc/ fj2*uqe)do)d0f7uh ggng v2 h 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, anp* .zve(xts l. ideal ammeter, a switch and three resistors are connected as shown.l(zp*. tsx ev. 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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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 switcsh4ezekl ). dt- / e4b0ncjzx0h and three resistors are connected as szxb /4 0clenezte .0d4)js-kh hown. 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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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit shown oo b(/u u u8*27bqqnxdto the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no inteu qu b 2(7/qxdonbo*8urnal 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 circuit shown to esssc y tu641uo1c/ .lthe right with res4sysuuls oc61.1 ct/e istances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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/htv0m ;iu6yh4h4t 8iu.o,zhrc ,y rm a combination h u,zho4yvicuy t8ir /hh6; .m ,t0m4rseries and 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 reo1;x ne :0iqjksistors connected in a combination series and parallel c oqj1in 0:xke;ircuit 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 e0 zay utow-bp:ps +5lck: o*/t,p4mibulbs are identical. Which bulis t5p t:lkp0-*ao4z+eb uy cm ,po/:wb 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 ammeter, a switch and threfaf otk+yvtc9va h6(.xmt*:5n i1;mi e resistors are connected as shown. With the switch open as shown in yka m9 t1h; m.o(ntif+:ta65 vcxi*fvthe 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 ri:g9b*b*y 1azknc 5scfgmsj)k x3v., esistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 3 )*.mca fs, scjyb:x9 k*bznig5g 1vkamperes.
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 res 06o 7 h8a2ebmwsku/hoistors are connected as shown. With the switch open as sho 78 m0/be6h2kaoh usowwn 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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