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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 circui4)ag08 qo/wjff3o el7 i6ko hst 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 dir s o4)q o/g6l a0wfiehf7k83ojection 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 r 6btf/8e/ieso ,xp;maesistors are connected in parallel, the_________each resisto ,s ai/t6fpom/;8xeebr 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 filh wr0u9 n-k4q5i 6.epbv8zu38iy jb,a bdr-nrament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much coow,v-uzy i- .9 irpru 6 b0ekd4bnbr85jnhqa83ler. 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 LEDp03-tjsdvxl 65 p0oqks. LED is the acronym for which one of th5 kos 60dt3p- lx0jvpqe 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-sectw ,xf z o,2cchc40r1hoional 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 rho 12fo4h,ccz w0xc, 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 sg+x,0*s9alirqm p* 8e a gj.qpame material. Wire II has twice the diameter and twice the length ofeqa gm9p*r + ql0.g *8,xjpisa 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 material but has twic-bh th7ft(8n v vcb v*eb4xk22e the diameter and half the length of wire X. If wivbe xbh 4k2-7chvf2v* tt( 8bnre 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 dhn:y /gi0 yj0length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of g0jid0yn:/hy 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 wantshn3a )1,lv29aq9k trmymrvv1 ywrl3hka9 4h8 to make a brighter light bulb. He decides to modify the filament. How should t yh3rr9l9,qan 9)vt1vkv4ak8 1r2 h mlwm3yahhe filament of a lightbulb 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 th/1hd(5wzu,t9xg c1 mwi/pqm qe same material. The length and radius of e/mp(1cqq dwt5 /hu9,gix mwz1 ach 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 resistance R, are connected to a batjv a q t7rhi*p4r yo)),ydk 84oo,a8votery 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 to8y) o vrdt, vj,ai*roo q8ky)4ph 47ahe 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 inw zge m+kz0ui j8-d89pternal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The amme +8 dke0mgzj8z- p9uwiter 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 rig9b2r-yuya)a ws6s2 meht. The three bulbs 1, 2, and 3 - represented as resistors i 2bus2e69mws-ar)y yan 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 43p uxbjxj g71all three resistors is equal, which of the fo14j7p3 xuxgjb llowing 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 represl ).e5ui0pk)y bts*eients a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. s 5bte).lik*u0e iy)p 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 followmibp bxy9e/.q kf7r8 3ing statements is NOT true concerning the simple circuit shown where resistors i /k9xfq3rebp bm.y78R1, R2 and R3 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 p /wmo+kdtqiagh))6vb( 0m (za 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 f)hmka0(/biw 6qdv o g+mt) (zpollowing 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 couwdnzxfsqs *4a4dr tgp)/6o - )lombs will pass through the identified resistor in 5 seconn)- 46 w/zrq)d d4*a ogfstxpsds 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 rep1*- u)o.wzeiy fy ux-sistors in the following simple circuit have the same resistance, which would dissipateoy-fe x)zp y1wi.u-u* 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 curr*iy6txi*gn yq-i5:jf o1tgyyc/gj5*ent through the 6.0 Ω resisto*n/g g*cyo 1f6-i 5t*gyjxqji:yt5 yir 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, R2, y-uk0xy7ucuc p2 x4b8 and R3 are connected in series to a battery. Suppose x b 2ucuy0478uc-kxyp R1 carries 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 aeg8 m *sd2tpqp vj55-nre connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Whp sq5e pgmn5t-d2* 8jvat 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 coir6 cv5 aby7gt+gol tm, ch*a.:l is rated 1200 watts and 120 volts. What is the maximum vaot6vgrct al a.m*+g:, b57hyc lue 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 operattq.z 10xlt8thr wc8e2 e at 120 volts? z1.rtthe28 wc80t xlq

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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 ux+:i 0wnews7tmg+wt84- 7vzu3 ezv fis dissipating 36 watts ow x vze-uu:0tm s8if+4ngez77vt w+w3 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 pressfb8ydx qv .t1+(mux6z clothes is marked "120 volt, 600 watt.” In no1z.+ dm q bft8vxu(x6yrmal 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 counc5x2 )5:qtsr t9bnrx 58xfq rld NOT be produced by a circuit containing only three identical 6Ω r85 rnq xx f5ttbr: s92)cqr5xnesistors?

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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 f9+n 2d;kkrv)l :d(osom e9w9 :ukscn.0 Ω resistors. Which of the following equivalent ks+d)m:of lv nked9wuo; n92:9rc(skresistances CANNOT 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 diffu/p*qwf /c:frj ei (-nerent values can be connected together in different configurations. If all three resistors are used in a circuit, how (cej qw-/frn/i* pu:f 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, a2jpm)sxno; 4o total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resx )os;np4jom2istors 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, qzuu6qnzx+z5 ihi4 67are connected in parallel, the equivalent resistance of the combination is 5Ω .i5zi646 z nzu7qhux+ q 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 designed eli e0k6c,9 h2 bju7nssuch that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of timek bj6ch7 s0n92li,u ee 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 that is dissi q6gmhb(x vkx7 td3-,jpating 36 watts of vtb ,7j-mdh(gq63xkx 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 cxk,pv ;i zj ,37f,wqj:hj5nfyonnected to 120 volts. If t73p z qknji5h,fvyjf, j;:xw, he 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 lightbu +i)99bjg e.qxzyjb4llb lit continuously for 1 yea9+jjyq b.xi)4gelz b 9r 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 powe0a 3-,vptqh wes ,9wvfr of 24.0 W associated with sp,fevw ,a3wh0tq 9v- 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 o gu4id 2f(m lbd(.a.wswns a computer rated at 500 watts in a 120 V circuit. If all computersu.gfd b 4(ld2maiw(s . 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 batte 2 5j ikddo;xeir.y1f.ry is connected to four resistors to form a simple circuit as shown o iejy1ir.dx 2 kf;5d.to 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 foulc) qlb; /yrc/r resistors to form a simple circuit as shown to tcy/b/ ;ql lc)rhe 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 are connziec,5+ty + mxected as shown. With the switch open as + c iy+,me5xztshown 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, macs2k5*w w n.fa9/x bkn5fy.a switch and three resistors are connected as shown. With the switch open asnkb. mnwwf/xs.ay955f2c ka* 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 c d+2m .yn2hmbfga,e7ammeter, a switch and three resistors are connected as shown. With the swc2byd7+,g am nme.2h fitch 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-qj0h0 hvp9u w:pdy7 p to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internahyu09:q-w7p 0 vjphdpl 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 w/w gy -ubz+6muith resistances yuu mg+zbw/-6 $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connecon)ca/ .tu o8ps7 qpc0ted in a combination series and parallel circuit )qo8 c0p 7. upcnoa/stto 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 connecku-j+n +ww i.cted in a combination series and parallel circuit to a voltage souiwu+kn .cw-+jrce.
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 idenqk9kr*4myy .z4jl;z ytical. Which bulb will be the brigh4ylzjkmzk .*r9qy4;ytest?


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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 i1 m-+93iits 5y3k 7cyy01 nigmqgjdgxdeal ammeter, a switch and three resistors are connected as shown. With the switch opym 5igs 1iyyd0g3-qc+t1m3n9kj ix7gen 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 switch and three nz 0g4n2poq mx9ji/,sxy4r3r 1nr(f nresistors are connected as shown. With the switch open as shown in the diagram tx1zrr q 44/n9,pyij(mn3x fnn02rgsohe 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, az v j8ke,:(vni 8k;vzon ideal ammeter, a switch and three resistors are connected a,8 z:ovvejk8zk v( ;ins 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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