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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 in3 xk 3lnlw+hm. 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 electric field through the iknh3 lwxm+3 .lnterior 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__) skw0kojc 0k2x 3gky6_______each resistor 3 0o0kjc kkwx2ksg)6yis 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 fila) gykk )bob)oko, :n;ament to become white hot, while the larger wires connected to the lightk;gay:b,))b)nk ok oo bulb 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. LE wgb9z1)b5b ;gh2b jjoD is the acronym for;gb5hjow 1jb2 bg) 9bz which 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 lepgzl.pn/m5, cj (h2 kbets6q+ngth 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 nezcgeh .l, 5tp njpqksm2b/(6+w 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 pe smjv*9c; /hmade of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, 9hvc/ ;e*sjpmII 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 mp ciq7f0n 51vtwice the diameter and half the length of wire X. If wire X has a resisn 0i 1mqcf7v5ptance 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 radbjd 1n:7kb6w vius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resvwjkbnd: 71b6 istance 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 ;oifvgq2swm ejh67o:7 64 :,;znqi*v zo ddrulight bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order t u: n7gvodr;7 i q*:hof6e ow4djzz,siv;6q2mo 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 material. 2+4tf k)2vpg fb th7fwThe length and radius of each refpvf) bt2f2hw7t4gk +sistor 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, eachcc:4y(sje t19 -bln5e pvfs9h of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resisto jncets45 svf 9e1p(:ch 9l-byrs 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 dzw lv,blh0lk m1 u+df- cc9/n)iagram has internal resistance 10.0 kW and the am, z/vncf-lch+b 1 l0k9dmu) lwmeter 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 circuitl0lk;l;9pk7ozo7 3mtxv s.vl +/cj o x shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in ttlsvl7l/xcmx ;; ko9okl+j3 op7.z 0vhe 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 simplz:c ve-l.o4huj5iqi :a(l;)gudmq8ne electrical circuit at the right. If the current in all three resistors is equal, which of the following statements must be true ivu8h(:m qca)uo5zj;d4ng : e-i.llq?


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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 rid q)k 4*m /luf.qxz/jnght represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs/ lm)u* fq.n qd4jx/zk)
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 co; p vwz- dcff3k+*lcfu h7u0w:ncerning the simple circuit shown where resistors R1, R2 and R3 are have equal resist- c7ufc+v zpdkwf:f h3l0*w;uances?


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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 conn2eoe 1edwdpxdf m fr4-425 np;q;8 bppected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X a8 pewr;n5 de -bfpmopxddqp21e 4;24fndY 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 through 2 93 hdzckb5up the identified resistor in 5 seconds once the circuit was clos95uzkhcb2d p3 ed?


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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 circuit hstr ;xt*3y4egza+h 4kave the same resistance, which would dissipate * hgr4ea;x+tksy4z t 3the 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 throughrekccko d,f3s7)s3 a, the 6.0 Ω resistor is 1.0 A. What is the p ,73ocek )cf s3k,asrdower 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, and R3 are connected in 8tbldqu 0q ;d(series to a battery. Suppose 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? u(q0dl;8bt dq

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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 rec -/w tdwt z7t3dw()gwsistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissiptg( w)w7t/ wz wd3dt-cates 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. n cl;k;6r/ pg*l(tcjn y.g/ oeWhat is the maximum value of the ;/6l*;no yp n/cjrkte.l(c ggcurrent 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 al2ro.icfnx8x2+ ; y /fvfkiv( t 120 kn i f/8.f(fy x+rlioxv;v2c2volts?

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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 througabz1sd v/9qk 68:vxk nh a 4 ohm resistor that is dissipating 36 waa 9kz1bsv n qd8vx/:k6tts 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 0gap9*/ be f3d dm.ybfvolt, 600 watt.” In normal use, the current i yedp3dm*.ga0f f9/bbn 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 resistanc()eth 2*zi+pgi w/i byes could NOT be produced by a circuit containing only three identical pi)i/g ihb* (et 2zy+w6Ω 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 ok.spz;ka8 3 1fxah t(hgp- rp-f the following equivalent resistances CANNOT be produced using all threpsghp1zh8( xf ak-tk;3.p ar -e 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 p8xy2vz , om ys1u8kn3connected together in different configurations. If all thrys,p3 mkuzx8o v2 y1n8ee 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 to a battery, a total power P is-qzw ku.a)zn 7 dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors zk. zquwa7-n)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, hakfx*smpia p6hz jg)t4+0+jo6 ving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the rekt6ioh 6jj*4f)m gzp +p0+ saxsistances 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 resistance 7hp ;od9 6aobqof 12Ω when operating at 120 volts. What is the minimum amount of time h;oq7adb 9o6p 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 fm 7r31p,zar zv5 licc4lows through a 4 ohm resistor that is dissipating 36 watts opzr7r4v5im3z cl ,a1cf 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 ampe5dg-xt 4f 46l*h 4ow9jiktoqares of current when connected to 120 volts. *-a5fx gkthj4w4q4ot d6i9olIf 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 100h;w )aeh 10segW lightbulb lit continuously for)hswhg;a10ee 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 cu pq4t920drg tf-cq 1ghrrent of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the t0rp-dg q91f2gq 4htcfollowing 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 comkso ;ro7vpd; aiv0l* )puter rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit prpk)o r0vs*il7d ;; voaotected 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 resistor7yy:p/ r(skxfdj iy jjl)s,8zyl*q0 4 s to form a simple circuit as shown to the right.px sjj(0:j/qzyy *ik)7y8,lryfd s 4 l
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 circuir 7idja qt1p0/t as shown to the 1 daprjq0 /i7tright.
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,/;6nq5zz d xavyje5 ;f an ideal ammeter, a switch and three resistors are connected as shown. Wita/ x5 yf;zjvd5e6zn ;qh 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 batterfx y0br.6j;hmd;hp b /y, an ideal ammeter, a switch and three resistors are connected as smf;x bhhy6;./b jdr0phown. 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, c:beu9xmp-oc/ ,i7wq k x3*by an ideal ammeter, a switch and three resistors are connected as shown. With the switch o oe: *bqxmp3ubxic7w9/ck- y, pen 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 showni as ubmg;/2 c* h-9f u1.8uxfyk8y, qva-tuss to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no inte2s sh,s 9qucb.xy ;ati *ky8-f/uvgu1- amuf8rnal 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 +vtk y d/df*6acircuit shown to the right with resistkf+dayv /d6t *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 shob ulr ,p5v9xfmi(;zf4gh4m l9ws five identical resistors connected in a combination series and parallel9;mf4 gzmfph l,v5(4u9xribl 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 connected inlwdny, k jhba5 txd2:jm*m,26 a combinatibj 6 kxmjnd: *dy5t,lam2,h2won series 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 diagram, all of the bulbs abar if8,xjsxdp9 * bl0q/qq7(re identical. Which bulb will be thq bl/f dxqr,0i*b 78 (pxsqaj9e 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 switch and three resiy4bs )7jw+acj stors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amp7 w 4)+sjbyjcaeres.
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 amprd .;tb 8af.a su3u2ometer, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammet8orb a32da; fstp. .uuer 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, an ideal ammeter, a switch and three rg/ uwfy ,uos95esistors are connected as shown. With the switch open as shown in the diagram the amme f g5s9/uoy,uwter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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