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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 p4ue0 qj-z*lj 2fhfj6electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through thfjql pje*0z h26fju -4e 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 s pishh9lns4en1x* 6xa4. .ikin parallel, the_________each resistor isx6ehxi l4s.anh s1s*. 49 pkin 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 lig6q 7cty y2 uap6ack.z:htbulb causes the filament to become white hot, wc y 72pkc 6:.auta6zqyhile 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 :*x sqq; 5ogfkm8 cf,alights are being replaced with LEDs. LED is the acronyqo a,:gm s fqkfx5*;c8m 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 length L and cross-section btqt hxkrt :de0h6i+k5-y+ .nal 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 the cylindrical resb+yiret +06kx k5-t:hdnht. q istor?

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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 zt 26jf8cf3 dbthe same material. Wire II has twice the diameter and twice the length of I. If I has resibdztfj6f382 c stance 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 buttkk,x(0i.mfl3xvbvc1e 5 9y y has twice the diameter and half the length of wik 5l,bxkc i0vy9(e.1mt3xy vfre 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 leng3a kqocp0,onia 7(a4mth L and radius r. This piece of material is then drawn so that it is a cylinder with new length 43c0(a nk7,iqmaa o op2L. 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 wants4v(c dyec0a**k-xso b to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be ccaveo0y*s(b* x -kd4modified 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 t94z /57kqh+(au eao d; nkbuqvhe same material. The length and radius 5/db+ 4unuaz; k7oa9qevh k(q of each resistor 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 resistanc ripcm6 y +6aa8.6tmvme R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connecci66 y m 6mpam+vr8.atted 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 accompbzp3v7.xa7x8.i r 1h lt-bhgd anying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. Th-t1. h7vxi7 p8abzxb.rld3 hge 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 c q8uv) ko lio9b)h)m1iompound circuit shown to the right. The three bulbs 1, 2, and 3 - represent91uk)v8 im iblh)q oo)ed 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 o37gzyx7x(wk3vn r c4the right. If the current in all three resistors is equal, which of the fol7o(z3gxk4 7v wy3nxrc lowing 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 hxk*( (yft+ikw3k3 yk simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which3k f(yh +t(kxw kyki*3 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 statemen l d-v7t fh0rf.jx*h6lts is NOT true concerning the simple circuit shown where resistors R1, Rvlf7 0jdx. -r 6hlt*hf2 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 X andY are connected in series to a battery. Bulb 3hypgv lf54mdp/ o;q1X is brighter than bydh ;p 5pf/143go mqlvulb 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 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 coul5e/svpcyv3u5 vm9zyf* e h-7;uo.iyl2gb r; yombs will pass through the identified resistor in 5 seconds once pi;-*uv55v byvl;m3 ye.ysrf c/ 7yegh o2u9z 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 simple cirj ,et6x5u:)uz.iisx y) -mva 6xsm8rn cuit have the same resistance, which would dissipate thv ie.u665nzs s8m)t au-:x xrxiy,) jme 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 cirlluhoy; 7dio;.an ym so;d) .k y:vz(-cuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the.y-)olomhzyi (;u;d7v nsly:d .;k oa 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 series to nyvqt7768b k*8a twsba battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0 q8sw7kbt6b8a n*t v7yΩ, 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 q 2q5jj,/ ebwrt(q6ybresistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 / 5q6qret2,b bj(wyq jhas 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 wa+su ,woq k97p9gk;0 sz4,giu6 lxlz fbtts and 120 volts. What is the maximum value of the oikzx9u6l7w , q9, fs+0gluksg4zb; pcurrent 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 of a 60 watt lightbulb designed to opera 0es/:qef::/4p6 /pnd rtb:mztja oyu te at 120 volf/emp0ryden tso/4:::b6q p /zta:uj 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 thr3hj1tb gpu:2ef)+lro ough a 4 ohm resistor that is dissipating 36 watts of powepe 1 o+t)rgbhfl3:ju2r?

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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 mahshzkpqi s69l 3* 31dprked "120 volt, 600 watt.” In normal use, the current in it issp9 dhpl33k6 1hz*qis

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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 follo d i7f(8hh.31 m qv(uueo9ht ng4m;l1dvt6m ntwing resistances could NOT be produced by a circuit containing only three identical 6Ω res(vmumhvh ng qdtie4t17uo(t9f86 n hm.3;dl1istors?

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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 tm4+r k -l.wn -z0flbbqhree 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all threew lrz-lqbm4bk+. n0f- 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 con-;mw2p- pu h kejrkr i4r)(fz6nected together in different configurafk 2mr6 jeiu4hw;-zk-pr r(p)tions. 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 resistor is connected to a battery, a total powe 8l- /1aetwyzpr P is dissipated in the circuit. How much total power is dissipated in a circuit zw1ep8 a-tyl/if n 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, having resistance R1 and R2, 2ke u5o g1g11kuafj)sare connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the foll2gkjgse 511uo)u k1af owing 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 s.b1/. awb im;jk .w;xqf 1vchvuch that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.4h1v..aw qivcxw bf;bj; k1/.m5 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 flo qwu7q k-z:b1i ,g)ymsws through a 4 ohm resistor that is dissipating 36 wa gs qi1qu-y)m,w7:bzktts 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 of cuor( mk8r(i7nja3 e.zri)s/zf rrent when connected to 120 volts. If the pra3/(zkr s ( riizrm)8enf7jo. ice 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 a 100W lightvn1 20r2nivmt7u q np-bulb lit continuously for 1 year at a rate o1iv20 7tqunr v2mnnp-f $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 resul0t/ou ra0ttop2e 42 qvts in a power of 24.0 W associated with the bulb. Which one of the f2ovtta oe0/u 2ptqr04ollowing 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 rated at 500 waylw 2b2 nhh .11qami6ptts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 a6lwhap2q y12 hin1b. mmpere 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 batt2mi mhk.b( 0t+mjrji8ery is connected to four resistors to form a simple circuit as shown to the rigi0 jmib2m(m.h +j8tkrht.
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 resistozr96bo hv2h*fo-hm-cqy+ cb9rs to form a simple circuit as shown tmvrq -fo2 zc9b6-* h hc9ob+yho 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 three resistors axs z*z80e :qc3iw1mos(v lo 8kre connected as sz30 1kiszm*c8lxvos q(:8 woehown. With the 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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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 swoqx 9d sljen(b7+56zcitch and three resistors are connected as shown. With the switch open as shown in theolcj+97(bsz xde5q n 6 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 a)uun (fjc0; -dxn86 r.fkqqu yre connected as shown qcu6-dx0 k y) jqrfu8.;u(nfn. 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 to the right, what is the equh1c1*;pt trcp ivalent resistance? Assume that all wires are ideal, c*r p11ctt;hpthe 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 resistance of the circuit sho,emfhii- xr 7(wn to the right with resistance(,x7i-efi rm hs $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connecddcy-zh/e(af uvi (0w5qao +6ted in a combination series and parallel circu uocd-qdf6/(5a(zavywe0+ ih it 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 resi8a,1ro ,vkh1rae 0dn qstors connected in a combination series and parallel circuit to a 0,1kq ae,hdnar ov1 r8voltage 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 circui1-lyh8 t /fdxz2o 6xo/qkd 4y8wzcmb,t diagram, all of the bulbs are identical. Which bulb will be q h y8x2by 81 zdd /64-czkm,olxfo/twthe 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 amme060 k m zcfwta:6ehoy)+irbrd z95 4hyter, a switch and three resistors are connected as shown. With the switch open as shown in the byc+e6 94f6)iayzr5rw z0: dhtk om h0diagram 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, f3 xi1cx 0 .tx;(dxk5ohrcb-n a switch and three resistors are connectefxx. kxic- hx13d5c( nt;o rb0d as shown. 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 three resistouy l f0ch7.fgj5 1s; d;/ps;/vjeayrers are connected as shown. With the switfs;7ejjyds1 av/0hygu5r. l ef/ pc;;ch 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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