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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 circui28 f3jylu, bait shown, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of ell i 28,ajub3fyectron 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 conhig 7kqv47+79akgslv nected in parallel, the_________each resistor is the same.a497k7q+ lv7gvgiks h

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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 wireqoi),)re kt9 w of a lightbulb causes the filament to become white hot, while the large)9erqtkiw,o) r 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 being replaced with (dv x6vj qq+fxf6az7,LEDs. LED is the acronym for which one of the follow 6fxvvf 7, d+j(zaqq6xing 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 lenfoxm hgsv /)nphm;j(i) s:u22gth 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 1/2 L. What is the ratio of the new resistivity to the o)su f xphs/j;n( 2)2v: mgmiohld 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 twice k*jp1ooj9b *(fy tec ;q; d*lif w1z,rthe diameter and twice the length of I. If I has resistance R, II has resisp1,t 9y*w;cl;f*ezjj fr o1*( o diqkbtance

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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 td7gux *8 gzsbci1;6cal but has twice the diameter and half the length of wire X. If wire X has a resistance of R then widx c*1 ugzi76b;tg 8scre 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 mat(9 /t-2)j 1n5bozw zh siuo7o+tfkxgoerial is then draw w )-7o 5jbznu92st(okt1 ih/gfoozx+n 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 brighter lightv61u5enox ,tn+awz+7cir 5ql bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a onlr ta+venx51uq+w c7 , zi65given 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 resisto zd th9df:cm91y/r16fpn- bw 7rg t/ u0:voekmrs are made of the same material. The length and radius of each resi9hz efdt/vr/df- 1n79o1mmw ru: p ck60tgyb :stor 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 resisna s3iew3m: gh;h3a j6tance 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 aj;h33mn: giaewhs63 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 accompanyiu 3v3t1y )gwjgx5 n:c*:a;6phw kobuh ng circuit diagram has internal resistance 10.0 kW and the ammeter hbv n;gh* wj3)w:p:yc3t u 5xg 6hko1uaas 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 circh4; k+ k bi ,r8lbqjbr3s/w4zeuit shown to the right. The three bulbs 1, 2, and 3 - r 4 ;r,/3r4j bhzi8kqwbk s+elbepresented 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 current in all scoe 3r(8xt.n2,jmc ethree resistors is equal, which of the follos jn2 toce, cx8e.m(r3wing 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 v 5gq8 vm0bsm:electric circuit composed of 5 identical light bulbs and 2 flashli :8 gq0bvvm5msght 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 concerny:fds;kc.+bdx95i d1e2ypmsing the simple circuit shown where resistors R1, R2 and R3 are have equal resistance y:d+ yebxpd s15ik m9.fcs2;ds?


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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 az2akpsg-:90m.i9lpk2l n7wt,nh hy a re connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andk9792-wk 0mn yi 2:alhlg.,tps znhapY 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 sy.ku1,ghk 2 p through the identified resistor in 5pu2. kg1yk h,s 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 simple circef+ 8yvy/ alf;uit have the same resfy yv+l;e /8faistance, 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, the current through the bkly *m4 xxgz) ,nxk)(6.0 Ω resistor is 1.0 A. What is the power supply voltage V? yb*)nmkxx k zl,g)(x4


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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 a battery.gu ;7xiic.xrc1 b)z ulke4( r/ Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, uzl1g x/7b.c;ri( ruxe ik4c)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 resi1hmc qr hvq3(-stors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it,r -h1vcq3(hmq 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 watts and 120 volts. What is the maikl2t(hre74j ximum value of the c( 7rjk4i tlh2eurrent 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 w *f) v:00- 4uuy 2kritbraxe awse:z2watt lightbulb designed to operate at 120 volts* 4x)e vu tb:a-eiswu0yr:wkar 0 22fz?

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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 hkz/ 6- m3ww50e.:hog hrgmud4 ohm resistor that is dissipating 36 watts ogduzoh .5r k6h w3m/-w:gh0em f 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 cx+rvfj 3 )vx7clothes is marked "120 volt, 600 watt.” In nrxx v7vc 3)+fjormal 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 folloubdw2s oqxxm/f 9g0*e )h/j8n wing resistances could NOT be produced by a circuit containing only three identical 6Ω resi/f/ou b9*)0gsw8 x2 xndjmehqstors?

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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 u /9skjp25 u0uc gtxj/Ω resistors. Which of the following equivalent resistances CANNOT be produced usixup gk/j25/jcu u9 0tsng 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 valuesbjtywd6k 3s73 can be connected together in different configurations. If all three resistors are used in a cwsj7k3b d3yt6 ircuit, 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 resax1i2c917 .qsd5kcm 9puj6q- pen 6kjrr b5faistor is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipateqe6p7rsmujx jcnq9di f k.cpr15b952a 6a-k1d 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 R2, are c b 20kue3 dkr*irr21++jyfnhv onnected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances khkj +*nyvdb fi r103e 22+ruris 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 12Ω oqa(z .8ch4 nowhen operating at 120 volts. What is the minimum amount of time that it would tak4o8.c onhaz(q e 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 wa5efe3gv 16no vtts o6 fen3ev 5vg1of 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 connected to 120 vo.6jry ,u5 pek/xr0 ppdlts. xk jdpprr/,6u. pey05 If the 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 a 100W ligh+: mus2wowiu) :y3rzhtbulb lit continuously for 1 year at a rate omy3u hw+:zswu) o2ir: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 4rwo+ky.uw zm 9 asx98-.00 A through a lightbulb results in a power of 24.0 W associzky-uxws9maw.o8 9+r ated with 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 a6qer bs6* x sq:7n+,8j*efyign ptxu: 120 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 sametiq6epn*+jf gsre xu itb6n *sy8, 7:xq:me?

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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 form a simple cir h r7j8 :-l,v ,fik,iooe2itbu,.u, tlrikd*wcuit as shown to thekhtf ,vuw,r,*i,b d :re,ot7ik il.8 u2j-ilo 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 simy isi7u p4-wc(ple circuit -7psw icu y(i4as 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 three ress+ unv6bvrw:.o exr/smlp,yz z; - )*cistors are connected as shown. Wiv. ),6o w*bmelcs+n zv:zp/rsu; x yr-th 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 three resistftp 8mx 5a:hlxa2e))*.o aiyb ors are connected as shl*2t:ix5y8. oa)a epa)xbfhmown. 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 switch and three resistors ar*jij2w*awdr/ln.-on8 zl jor . *wcl( e connected as shown.o2 .onij8l(* r*w *lwrjz./lnc wa-j d 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 equivalent resistance8yyokgrt-ub; ju. n(- ? Assume that all wiresnj(r.-ybytg ou k-u8; are ideal, the 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 ciet+d6 7tgem5g2gqf tu uhvg/)wa8z 40rcuit shown to the right with resisumge 6q)05+azv8g/t u4gfgtwet7 dh2tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identicak45eb* zpl3n rcsj4e +l resistors connected in a combination seriece4e4z 3p+bs5nl k*rjs 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 resid mp .d ,mj*e;eyh(5y4u fy+znstors connected in a combination series and parf,me+e pzdmn;y.y d*u54hj( yallel 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 the bulbs are identical. Which bu+ cfoo4z .p1s 3k+be2es(wfuilb will be the brighteuc+ 2(14 e b fiof.w+eokp3sszst?


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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 threel.) b;tpm: )ez.l7j es vvzrm9 +mu9cn resistors are connected . 9)zpljlte);mb nv9 rzm:cmu+. es7vas 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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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 switzoogc96id /n .ch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter 6.i9ongz/o d creads 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 ammetewhz*.hy5 mbmpz 3 c:r3r, a switch and three resistors are connected as sh zb* wyh3 m5mz3rh:.pcown. 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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