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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 resi cf6/ r:bcmxyx)x o4s6stor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the dix/6f:xc4om 6)cy x bsrrection 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 re 9ub9i8;uod0q pg k(so b/-vp+ l1ydfysistors are connected in parallel, the_________each resistoriu/(og9p bfd1s;9 y -0quvk p8bl+ doy 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 lightbulb causes the filkc ;o+6.d b2h ) .x0xjshamxqjament to become white hot, while the larger wires connected t;c6+dj0 hmh a.kbxq)x.j 2osxo 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 LEDs. LED is )3 mjn sp8m6cethe acronym for which one of the f3m)cs nj6 8mpeollowing 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 A. veu b6w *k(ke6It 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 6wek6*eb u(kvcylindrical 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 ar6ce:*wyra: j g;muz +he made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, Ih:*u6:e rzga+ cmywj;I 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 j jn ( *ws4mgkm1bnk6y*87gjehas twice the diameter and half the length of1ym6*j74 jbwnnmj8 *ke gks(g wire 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 length L and radius r. This piece of materigq* y+vc ml7v .we)n9cal is then drawn so that it is a cylinder with new length 2L. Whamvc ew. ynq v)*79+glct 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 light bulb. 3ku yut*jjv 13He decides to modify the filament. How should the filament of a lightbulb be modified in o y* j1utj3k3vurder 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 ma3fl ) .r4(5qc1a.bqq e qrnvditerial. The length and radius of each resistor isdqeqa4f rvi (bl.) r.qcqn1 53:
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 r ftj,k2f o6vfh9 w7p58;xa6gwa lkr.wesistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of tt oh8 ka6f,9lw6;j2ax wfrw75gkfp .vwo 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 dcizv;2/e:m z has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is mosc2 zmzv:;e /idt 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 tobh xe1fbjqm80kl4t3 1 the right. The three bulbs 1, 2, and 3 - represented as re8th4 mf13q1 bj bl0kxesistors 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 r0tr-o*3 w/,yi kjd jmuf5+s gsight. If the current in all three resistors is equal, which sk,/ti+sf* wugjyd03m- r 5oj 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 represents a simplextx* vikztq4 7sux3*1 electric circuit composed of 5 identical light bulbs and 2 flax *1xqti4 x vst7*zku3shlight 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 frf p t xjsb-h2dw5u603ollowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equa 2thwduxpr5j3s f60b- l 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 X is br 7cqum0 io1wh/ighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to the iqo hcu71 /m0wsame 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 / uqt82yc4tp0a5kwui the identified resistor in 5 s tw /u0kp5 8tqi2cu4ayeconds 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 dst4w7zfm y -+ following simple circuit have the same resistance, which would dissipate theftwm+- yzsd4 7 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 accompany 1 z/ 7o1myx:tc+lvbdsing circuit diagram, the current through the 6.0 Ω resistor d t1om v7zy+l1csb/:x 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 resistors R1,6aqe5damm4q:c lrt0 ;4wgt 2b R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ωtabm24d;0mw l5 qrtecag4:6 q, 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 in parallel to a b: 0 pzlwm2.sbrvm5jbl:ax x/ 8attery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the curren:rjs m0b/5x x lwbz.:l 8va2pmt 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 12 41z/s -0rxk jaomjfk)i .udv.00 watts and 120 volts. What is the maximum value of the current0vsau.-fj41/k zi. kjr d) mox 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 d 7 q+eui02aw0mv(bbci esigned to operate at 120 voltsv+( b7uwibai q0e2c0 m?

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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 flownv(okl:zbsne 0e6 47os through a 4 ohm resistor that is dissipating 36 watts e:b o4nles0n(vzo6 7k 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 zr.kvux,gqzs3 jya3/1) d i/ato press clothes is marked "120 volt, 600 watt.” In normal use, zja), driy/ akg 3 u3xzsv/.q1the 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 , b71id )q7hzfio g2zefollowing resistances could NOT be produced by a circuit containing only thre17ibzeiqzdo )2h,fg 7 e identical 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 rw++ydz-m ik yu,ks(k yy8v( wd5v hm2*esistors. Which of the following equivalent resistances u- 8svmy z,vmd k+w5i 2yy((*dwyhk+kCANNOT be 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 c*9.tr sk8prsf.gy -4 ei t-zcabg1kfi5n5 1 ayan be connected together in different configurations. If all three resistors are used in a circuit, how many different values * tkyept41a9bkcngs -fa iysi5.r-8fz g1 5.rof 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 777rahn5 6 ebzc,b17 qd rv i:ndqjzp3is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissiparb:h z63q qnn57p7177zjab,vde r di cted 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 connected in pa,fmosl l:537,u nic;a1+v xoc gl0uz drallel, the equ sd0;u liacgo ol3zm,x l1:75,cnu+vfivalent resistance of 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 is designzumlhg qc78z36en*f ,ed such that it has a resistance of 12Ω when operating a3,8* 7 l ecfzuzhm6gqnt 120 volts. What is the minimum amount of 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 through a 4 ohm resistor+1gr5t6e3 r. hfk zmxl that is dissipating 36 watts of portkeghz.+f lm613 xr 5wer?

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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:7q5 fptna*rl connected to 120 volts. If t5*q rpa:fnlt 7he 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 howlwvhhy0 *iolom h. 37f-r3 a*p much would it cost to keep a 100W lightbulb lit continuously lohp*7o.-wmhr*vha fy3l 0i3for 1 year 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 lightbulb results iz5,s1gpr9 p pln a power of 24.0 W associated with the bulb. Which op 9zpsg1, lp5rne 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 cof m npj ,qj 9p-2rcwjm) j307n.dmm0pecdy9 c;mputer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum number of tj2y 0c9m3m90fj.m7dj nq,wdc pp;p)r ejcn-mhe 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 form a simple circui;gp6l qnp/j; yt as shown to theq 6pj;gl;p yn/ 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 circu0b6 gwnem3d0 g.m e3fmit as showw meg06.0mfdn3bg em3n 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 resistors arecr:y o1opg s+mgk;0y( connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampergoys(py0:1g r+ckmo;es.
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 ixxj-5j rfb0n -01wqjjdeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter jq5wjjx b-jr n0x0f1-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 switch0ctqc; y) yhuesco )+: and three resistors are connected as shown. With the switch open as shown in the diagram thhceou+)c0yqc;yt :)s e 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 t4tm q(li+j0.0gvj. qn ig)p: f aty*mmhe equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resis.t0qj mg(my m j*ali)0v4qp+gf :n.ittors 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 pplv sjhr hex)vx*77dn-h,3 ,right with resistancehx)h h rej,lsd77p 3*-vn xvp,s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 a combin af5 ,wwq/qwi8ation se,8qi fw aqw5/wries 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 ident*ug p ;wsp:-i3)nnsjqical resistors connected in a combination series and parallel cirpqs* ujw:ni-3g)psn; cuit 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. m rcrg20etf.0he)if0 Which bulb willfm0 )r.e ict fg2r00eh 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 switchb.wffx9 92,j (p:zxqffs x; ie and three resistors are connected as shown. With the switch open as shown in the diagram the ammeterf2ix9qpb;x f w:s9(x,f.z fje 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, s hq:fwn:*.uzlc9h: lan ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.hlzcu h.:wf9:ns:ql *
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 resing)*k.b5q+ukvl2 v bestors are connected a*52 beqb)+g nku.lvk vs shown. 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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