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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 elnlie wh0w,8 l.6mn07 jky8s 8ekdfp.s ectric current exists in the metal resistor connect7i0s6 wfenmn88kpl,ey jw.d 0kl.s8 hed to the battery. Which one of the following choices best describes 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 resistors are connected in parallel, the_________edz:kz; yx5:a en sgew -tpfe;n0 fp+40ach resisto +w;5n4epe::n ;ye0gda kpszftzx 0-fr is 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 light/q v+qb zr3*.m q9-gq1r.p+q qsbrdskbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. Thisqb-+g rbqm1.3qdq9r p/kq.*s+vzq rs 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 - ksrzgrznkw qo(k)1 0:1vr/q is the acronym for whiso) q(vz nr1r/kr k:k gzw10q-ch 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-sectional area tb,vp c*z-rgedx(ob7* 2xd d4A. It is to be placed i d*(4cbvgz,d*xr p7b -te o2dxnto 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 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. W f+bznjygm7tnr0 o1f.8y/9 a ukie2e4ire II has twice the diameter and twice the length of I. If I has resistance R, II h +1krozjg7ya9m b2eniu.04fytefn 8/as 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 materiah +3:6w0 glvy r+kzronl but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resir nh+ 0yrk+ gl:o36wvzstance 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 materdl: gwvpa4( q:k (geakwyy+-5m av ;zx4zf4w/ ial is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of th-e4;aap ywlz(wydakzxgmf w+4 (gq/4v v:k 5:is 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 waan 0id./ i,vfxnts to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modifiedav0i,xi f .d/n 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 tfbz.-329jxyg8 76p ws icjq jjhe same material. The length and radpj82-jz3c x7 isb q6f.jj9 ywgius 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 resist6zx, ayn )e4hrance 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 resistance ofe,r4 hnzxy6 )a 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 jg6*u/dx mh.yot7b- nresistance 10.0 kW and the ammx/bny u7*6tjo dm.-gh eter has internal resistance 25.0 ohm. The 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 cir ofg()q3mc*1ar(r*wsq cxt j0 cuit shown to the right. The three bulbs 1, 2, and 3 - represent(qg3racx(1*0c) r jtq s*wmf oed 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 the right. If the wh94zgnb / :pbl)a9 hot--d7idou y* ncurrent in all three resistors is equal, which of the following statdo9ltbghiy*4d -7a9u n/wphoz- b:n )ements 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 htukd mwc 5u22rfg, co+cp.x8u6(+hbrepresents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight ce2utf.ckmx2c,8 ho gpb(+h5 u +ud6rw clls. 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 statg2kv daew6 6b;ements is NOT true concerning the simple circuit shown where resistors R1, R2 and Rwbg;k6a 6 edv23 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 Xlu22g 2gs3mm v 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 choices best represents what is obv2 3lgsmu2g m2served?


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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 resistor in 9 w)5a,e + ib1kirlacran2sc7 5 cawe i+7 ,nck9ra1arslb52i ) seconds 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 jc,o** /;(id d guzetr simple circuit have the same resistance,r/*d*i t je;z ,cu(gdo 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 accompanying circuit diagram, thsn q 0p 9ly9)poyo2iq*e current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage*qy sp0 i)oy99pol2 nq 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 connectc*hej;l: c5 .pm3z etnu0. tlged in series to a battery. Suppose R1 cam:jlh. 0u;5e. p3*ctecl nzgt rries a current of 2.0 A, R2 has a resistance 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, R2 andR3 are connected igxt+(;b8ng8 vimoop (n parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipatx(o8vg m( it8+o;pnbg es 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 isg5ca+(* mh u6:nk rxbs rated 1200 watts and 120 volts. What is the maximum value of the currentusa+ g: kn5rcmx(6 hb* 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 t l9i6 2vipj 5jtev/jqklu28.do operate at 120 voltsd5vkl. juje2i tl28/pv6ij q9?

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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 dissipating prp2e) *vqc5n36 wat p*c qnp)v25erts 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, 600 watt.” In6a x i3tkky7(/tn w:jdsw2 uv. normal use, the current in 6k y(tw duaxj7n/kiwv2t.s3 :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 coulk;gvn jao+u 62nf3hwdla q9(6d NOT be produced by a circuit containing only three identical 6Ω resistoru62 adav(lo ;kjh693nq+ gwf ns?

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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 reme mg3;am4 zs+sistors. Which of the following equivalent resistances CANNOT b4 e3gmmmsa; z+e 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 togl2+ eo k +u(ba5hq :*xvmqg6hr6eub)oether in different configurations. If all three resu2 ) :rb+ 6b qevoe m+akh6(gxqh*o5ulistors 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 conne1 agxh7)s jz-mh/l1 zicted 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 same bat7xhm- s a1hizzjl/ 1g)tery? 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 resistorjp l01ppvtcy ex*1lz1 h95g cra.,m+ks, having resistance R1 and R2, are connected in parallel, the equivalent resistance 1* 1l9rj 1emtlcp,khpa0vczg.x+y5pof 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 isoo(c2d;mjlpp7n / :rj designed such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it woul:rd2/po c7p( ;j nlojmd 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 dissipating 36 wi3da)p.cq8n( /oz7adcl9me e*:c ebuatts o b(mc cpzioua7*.d 8enc e)/3edl9q:af 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 current when conty3 -oe iqy *h9li)0/csv xg0pnected to 120 volts. If the price of electr*3ygp) 9iyhqliscot00e/v x- icity 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 1k ow(b,ic:vp39 jqu8a00W lightbulb lit continuously for 1 year o(i, b pa9jkwv8u3:c qat 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 lightbulb results in a powepq*,u: qyvl .umme5 x8r of 24.0 W associated wyv 5mxqequ8 m*pl:,.uith the bulb. Which one of the following 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 watts in a )4eej ak9bd/u 12ak ue9 4bd/je)0 V circuit. If all computers 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 four resistors to fo6manalx w 3e,1rm a simple circuit as shown tm le3n,aawx16 o 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 four resistors to form a simple cj j3udp)k5re8sj: xt3suq hvm p*n2;+ircuit as shown to the ri sk82dtj3ej5 )jn+ rm*sx3 v: ppuqh;ught.
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 andek;ei2s cra.- three resistors are connected ac2;i a-esr. eks shown. 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 switch and q:l qu mys+u-d(*w4yo three resistors are connected as shown. With the switch open as shown in the diagram theqwdyslm+ 4 *ou-qu (:y 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 resistorsx1(-i gl:gvv*nf,mah s3s pk* are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampe spn:v * s, va-1fxgh3im(lgk*res.
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 t7fs ndq8 lx/u/o the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have idxfl u7/8qs dn/entical 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 with renbk e 6j6ffm yyqs(p25x7: ye5sistanc2pjnf 6 (6y7qy5xke yeb 5m:fses $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 inc;u3 /1cankb he :yq(/pe.ip r a combination series and parallel circuit to hb: /k(epq3i an; eucpr.y/ c1a 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 resistors connected in a costwprlk e7)s17 2yvs, mbination seri)2esk7v1p t w7,syrl ses 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 q)6)(evr4 htul466v nfqjgrodiagram, all of the bulbs are identical. Which bulb wiv hq6 ng )(tre6qo4r6v)julf4ll 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 ammx-l31k l ewi/aeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2. 1/l exwlik3a-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 ammeterl g, z i9 8w41uamn,, vmad,lnqf5cer(, a switch and three resistors are connected as shown. With the switch maqv,d,8c(e9 rnwlug4 lzma, n5fi ,1open 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 batterxxl7n91 voui pwj5 ;r2y, an ideal ammeter, a switch and three resistors are connected as shown. With the switch openix2 r5nuw7x pvojl1 9; 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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