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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 metal reshh r7h )5pvd,ppj z496tt d*pvistor connected to the battery. Which one of the following choices best dvprh 9 67,vd *)zppp4tj td5hhescribes the direction 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 resislry1ju3wb,bras 27 6j tors are connected in parallel, the_________each resistor i3b 7rj 6jby1uaw2lsr ,s 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 thro n m/fk.6k7iutugh the thin filament wire of a lightbulb causes the filament to become white hot, whii7t/ 6 uk.nmfkle 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 bm r(lxgvxn7;gpzkgf 3w+2- *0p )kohj eing replaced with LEDs. LED is the acronym for wh gk; n(g)3 lhzrj+mvpxfk* 2p7xg- 0owich 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-tn,:6ztl 8z2e h9ifso7cl i+msectional area A. It is to be placed into a circuit, but it first m+eh nzl6 m79fstoi:li8 c t,2zust 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 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 wir)2 i a,h)cw5rifr:yzj(vu9 faafrz ;)e II are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, IIy: ci) af f(,irwa;5frj9vz)ar)2 uhz 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 materi/x*f5i2o0apu rk ok(gal but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would kgipk /5ro*f20(x uaohave 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 /lewf;l+385kld eq yolength L and radius r. This piece of material is then dra /;wd35fl8ke l qyoel+wn so that it 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 wants to make a brighk3h2 gxmgm5i*.8 v34eqwg kfuter light bulb. He decides to modify the filament. How should the filament of a lightbkhgg5f u8eigvw3k q24xm .*3mulb 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 mater)+ 7yhix4iri x e+o6bgial. The length and radius6 h+7o)i ibxerxg4i+y 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, eachai *k1 c6 uy1e/sn.jpv of resistance R, are connected 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 resi/n vpakusi y1*61ec. jstance 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 resistan 2pvc8o o3vgk+ce 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter rea+3v p2kcg8 vooding 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 s gjj1f eb-h)54gg -d)pl2ropshown to the right. The three bulbs 1, 2, a b)2djs-5pjo-gflh1g)gpe r 4nd 3 - 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 simpwlpmpe x/a:4hp, 9 /tmle electrical circuit at the right. If the current in all threpe4lth/mx:/app mw,9 e resistors 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 repbu 8fqj,p0u :ke8 zec5resents a simple electric circuit composed of 5 identical light bulbs and 2 flashlightq:e0f pju 5k zc8,8beu 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 s xbz y*lbdcfick7u-3,y(eh29imple circuit shown where resistors R1, R2 and R3 are h*i fbkb-y ez 37u29ccdy x,h(lave 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 connecp. ta ;kgr7en wt:;9ehted 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 97khpna;;t : .egtwre 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 identified resistorbr6 -kvi5lx5*ugo ,)vkvjm4 p in 5 seconds once the circu,56gb4vmk5 jx- )vu lk*pvroiit 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 wvfn;(e8xq( s+mqt fi /v0*hjtf;zi, resistors in the following simple circuit have the same resistance, which would dissipate /q0vj , ;t tei8z(sxfh qf(+nw* fi;vmthe 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 diagraake/) as6b8ynki p8 +s6vhim 1m, the current through the 6.0 Ω resist/e68kba ) s6ikvn+asmyh1i8p or is 1.0 A. What 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 resistorsl upr iwj1v zbp9 x5,y:vmf+(7 R1, R2, and R3 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 dissipates bj7z(f,vlv51 :+p 9mwri xpuy6.0 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, R2 andR3 are conmehqkr(t zd,d;* eo( 2nected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the c;*hkeed(rdoqmz t,( 2urrent 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* r/m tky2:o65ugo;iu sy 6lq.uwi vd(. What is the maximum value of the cuwo(6:oi; lu. ugtkiu y2/ vdrs6m qy*5rrent 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 operat.- 9jr * ysmcodkb.2hv/p2vg te at 120 yrt k-/.j 2d*ovc 2pmhv9.b gsvolts?

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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 ohm resistor that is dissi)fri0co5 zop)pating 36 waz 0) r5c)pooiftts 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 clothes is marked "120 volt, 60aq3 fldu(-jga; vf, l h2w/2js0 watt.” In normal use, the current in itg u s/-fwf2avd ; jl,3haq(2lj 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 by a circuit l rr1*6k yi/d5n)anes7t p4g vcontaining only three identical 6Ω ey1*tav 5n6ld)r / irg7ks4np 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 ea.7cnk. wcl*/hg5n5 y/taes. Which of the following equivalent resistances CANNOT be produced using all three resistoawyt.e5 e.gs a nhkc7/5c/*nlrs?

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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 together in differelz5-p gx)d 1bthq:keb,*s 9n hnt configurations. If gl5b9*dq,hepz b kn-1th:s x )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 power P is p+ an,.m+brgs dissipated in the circu+apgn+ , msrb.it. How much total power is dissipated in a circuit 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 R)xn ;pvj ;,uqlh4dmh72, are connected in parallel, the equivalent resistance of the combination is 5Ω . Wh4 xpv)nh7 jluhmdq;;, ich 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 1tfq6 n ((xir2w2Ω when operating at 120 volts. What is the minimum amount of time that itt frx(26inqw( 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 dissipatingy),k v 2 qj42sx4grqmc8sv3qi 36 watt)vqgq44 mcyv,kq823i rxj s2ss 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 heateww:ck utij-j +7kb0 pez/wagvsu 8chi,;58j+r draws 13 amperes of current when connected to 120 volts. If the pricc+5ute78 g ibvujkz-a ww,i+8 hsjc;wpk: 0/je 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 vz,l9b jrka-+(wtz 6alightbulb lit continuously for 1 year at a rate of , rlza-wztj 9v+b (a6k$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 in9* mzarz/,bsp a power of 24.0 W associated with the bulb. Which one of the following choicezb s,*apr9/mz s 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 avp cnh 4m )lzh,3dj9:n:dshh,v2i e1m family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 amperzn4v3h91n e:dv) h ds,imhhmpc2:j l, e 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 t3g8:uqrhhztv/3c+m tar +w *x o form a simple circuit as shown tohzu8+*qhxc v +wr3 3/m:g trat the 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 fou gj p:.dkvn+pk:vi1/jvw9ng( r resistors to form a simple circuit as shown to the ri1 +n pvg:pk:nkg v./wij9(jd vght.
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 amm :xp.0r k1rt8oec /jubeter, a switch and three resistors are connected as shown. With the switch open as shown in the dicrrux.1:kt j e0 po/8bagram 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 three resist zm ny5n9chz9l,qh(8wj8jf dw fb:4y, ors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes(59dh wqy czm jnfh,9j,y 8:4w8zf lbn.
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 rur(y(- u6x98dpbl l wresistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 br-lu6 (9wlry8p(d xuamperes.
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, it)fl;lxk l+;s y/tp/what is the equivalent resistance? Assume that all wires are ideal, the battery has no internalixyll/;+t)f;ks tp /l 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 the right fqe5lpqw. 7 b3 with resistanc wpl7b.f 53qeqes $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 reso yfy9x+ kc(i*istors connected in a combination series and parallel circuit to a vocy+ky(xf9oi *ltage 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 combinwys sk c1*) (e76 dewcq6+vkzzation series and p()ecw ez7dqss1cv*k k +6wz6yarallel 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, all of th8 x, julzss57op j. 0kkgbp/*he bulbs are identical. Which bulb will be tpklx0.gs 7hs8jz* oju5 ,bp/k he 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 an qrh g-vrld3)1d three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.gvhdl q1 )-rr30 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 u dx6yuy 7d.,njjx:tdvl v8+4, a switch and three resistors are connected u.ynj7dj :8xt ud dvy+l v4x6,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 switqx5kj a,4d1k ach and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter qxa,dakk4j51 reads 2.0 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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