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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 circuit2b/e u xapi+grs5m;y6 shown, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction of the electr6 xg2mb a/i5;sy+ erpuic 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- wfpz*,pds 7+mymoh s* jo:5k resistors are connected in parallel, the_________each resistor is the sam7 -ps 5:os, * m*zmofjpdkh+ywe.

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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 ligh1rpo;qvzr7v ;w *hg j8tbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain mu;op 7rh 8 *rvq1;gjvwzch 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 wi+;vkpyvv q/ik*q) 6mk.) ploi th LEDs. LED is the acronym for which one of the follow;qm lo k/ i*6)kk)vpiyvv.q+p ing 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 grap sbuu) kvimr0rz9b fuit8o z8roz 1195,ckn+2hite resistor has length 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 ne8uvzt)biumo2k1oi9 1z+ u0nr b 5k9rr8zc,fsw 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. Wire II haz-nipjgwt:z*1lyq kdp)56b 8s twice the diameter and t)pn6iwkzq*-: yl b5 dt81gjzpwice the length of I. If I has resistance 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 m (z ze8su9pug34kg6odaterial but has twice the diameter and half t8ou9z gd6z ukg3e4sp (he length of 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 ynao gykw.6z; l-)dol5-byj ;material is then drawn so that it is a cylinder with new length 2L. What lz). l;w5ykyg-nd;byao6- jo 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 m : (vpa0i)t 7lld) safx;eo kc(/f.kmbrighter light 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 i:(( a epcfxotmva/mlld)k.07 k)sf;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 resj0.t3t,)k. jc1lqs6ftoqci p vj/ jt 2istors are made of the same material. The length and radius of each resistoctj0 jjtkjq2ttl q3,c.osf) 1pv.6i /r 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 resistance R,k j*di/ic7z a63 p8slp are connected to a battery in the following way: “Two resistors are connected in series. This combination p87ap/slkz*3iijdc 6of 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 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 in v/ a*+ztsxa+ der*.sti/gff )ternal resistance 1+g .d*sszit+a /fef/a)x*v tr0.0 kW and the ammeter 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 circuit shown to the right. The three bulbs 1, 27ld a+8*mz dyw, and 3 - represented as resistwdmy 7z d8+al*ors 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 circu1j:*h tgx hqd6it at the right. If the current in all three resistors is equal, which of the following statements mush d*g6ht j:xq1t 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 fl u x05:nh(ydsimple electric circuit composed of 5 identical 50nl :dhy( fuxlight bulbs and 2 flashlight 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 tc mj ce7h6d8q3he simple circuit shown where resistors R1, R2 and R3 areem6hc d 37q8cj 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 an-isl-1x k1ptjg8d6 y cmp9dn(dY are connected 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 with each other to the same battery, which one of the fo9n 8lid cptm(dskjpgxy11-6 -llowing 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 resistor inh:o,v h0giy24h ly .gcydxv48 5 seconds once the circuit was ho4 g80iy ygx cdhh,v4lv:.y2 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 ss pg zxsp1sckb o23 .8sa4p2h5imple circuit have the same resistance, which would dissipate the greap8kx 2 .csz3gos bs512s 4aphptest 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 currentk)zp *b7++ e rdywtk4;u 3ed0l4cx ygy through the 6.0 Ω resistor is 1.0 A. What is the power s4ckzly3ek dgy07uy te)d wr* 4++xpb;upply 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 a battery. Sup(e toif;b*-o6r f; hp4i pq3kspose R1 carries a current o(ot ;ip-pb;s4r3f6 fh*koei qf 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 resis:2gn mt jn:dj-;b hp4ftors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. bh d:2n:gtmj -p f4;njWhat 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 maximu rb2;qjkj j7-*i rir(nm j-( j2 b7nqri*ikj ;rrvalue of the current 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 operate awz9c wtz1;3o bt 120 voltst 9w1wzo;z c3b?

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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 re,amjf:f . fz df e0smm*8,i7bgsistor that is dissipating 36 watts,z,fbe fmdm gm: i*s0jfaf 78. 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 qjty(:dpr04zx h:sdy prh49qh) -i 5t "120 volt, 600 watt.” In nor sq 5x 0p44z:hdjpyr(h)tyr itqd-:9h mal 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 following resistances could NOT be produced v04uc,t)zhgo umtmo9 p k/zg1cb: u:3by a circuit containing only thrm3okht:m 9cg/4utc o:uz g )bp0z1 u,vee 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 resistors. Which of th(coc499lrba r e following equivalent resistances CANNOT be produced usinr9l9o( brac4cg 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 together in dk7xt-k jegh/t u9 ;5j cu)fr2b2rkei/ifferent confjk 92-rt2 ;5igek fut7jbu/cxek)h /rigurations. 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 to126/ix e6s+cus hn wqb 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 battery? Assume the inter1h+s/i s6e w6xbcqn2u nal 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 cc1y 2u8 gljjd7onnected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resy8c d1jl7ug j2istances 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 resistancet(zdhglm f31- of 12Ω when operating at 120 volts. What is the minimum amount of time that it woth3f -z (g1mlduld 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 oi(tr+(wh* l;mry)c j6fdhl+phm resistor that is dissipating 36 wap;ldml*cwyr6()(+ +htrjh iftts 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 current cl:eg3qi ou8v m/f5,-xf kps 7when connected to 120 volts. If fx53/,8qogfm ce slk:p i7uv-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 lightb81; bthqi h;rv,c z;vlulb lit continuously fozctvqb hh 8r,;;; li1vr 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 in a pokf5m f-n9u 0auwer of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbufmuk n9uf0 -5alb?

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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 fami91a.8y;k m841sysgcz j wn otrly 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 ampere fuse, what is the maximum number oytzym;.os14wjcn a8rg918skf 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 form a simp0ffo9::ngh wim0d qs4fk( 3fw-f(eh5wj /xgk le circuit as shown d(n5/mwh( qk9f-w:x4sg0e f f0o h: fkfg3ijwto 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 fo i.sknx/ 09cbkrm a simple circuit as shown to the rig/kbckxi9.s0 n ht.
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 mn7z8. zvob. qyc )asg/yeb +,and three resistors are connected as shown. With the switch open as shown in the diagram the ammet zq,ca7/omg+zenbb8yv ).s.yer 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 resistors a,oa8d)mn m .-qierap8h 3: yxyre connected as shown. With the switch open as-amy8any oehdm 3 ,x:ir)p8 q. 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 ideakr(0 xdqbrbk)av i2(w 9x80h41f mffol ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0wh)(f2k( o4f19a rkb r8x0bvm0i dqxf 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 2+t/eji/odz/ )tqbl 8ydel. 8 xnuwp7, what is the equivalent resistance? Assume that all wires are ideal, thi/no .) /2jdebdlt/8el+uzywp qx t87e 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 t x2;av fkw ok8/tf7d,rhe circuit shown to the right with resistrxvdoft72;,f /w 8kka ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ide8cb 76- ga. c*rt4w ,hni3fs*klvuxxmntical resistors connected in a combination series and parall af krb4t7-h*xcwl,3 u8i6n*gvc .mx sel 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 resistors connsfqar,k6q7 9wr3b no d87q +btected in a combination series and parallel circuit to a voltage sourcr8,a dk 6oqn77qt srfw9b3 q+be.
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. Whic:x44mava ;on vh bulb will be the brightea4mo 4v :nv;xast?


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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 afnrc5 yhn2:ajd-. abmyr 9*wj0z o7wy 8,h wh*nd three resistors are connected as shown. With the switch.wrh87mw0c-5fyjoh9h zjn:a d *yb* ,2wa r ny 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 5,md8zsk k)4fi2 fqrg switch and three resistors are connected as shown. With the switch open as shown in the diagram the amk,g 2if 8m kqr)d5zf4smeter 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 battu osjnw/xb: x fp2f16-ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch opu- n xbxjf2fs p1wo6/:en 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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