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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 circui g+y0+ o( (yyat0vey 5jbo0r-e m,ulglt 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 electric field through the interior of thegyl- ub(ryg+ (j0o0e5y ao+le,vm yt0 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 parallx)7;wp k g0:fxhw.ly ozj*sx2k-izy(el, the_________each resistor is the same.z jkw;7yplx ywi*o 2x-:. )h0 kgf(zxs

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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 thi4 um hy4orvymut8u/ ((n filament wire of a lightbulb causes the filament to become white hmhu(ytu84r/ ( 4umvyo ot, while the larger 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 m +he /d9bem5 d7mwu4pare being replaced with LEDs. LED is the acronym for which one of the following choiced p5e+mw9d4eu 7b/mmhs?

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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-sectg+-jhdck9 :z mional 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 old resisti9hmd+jkz:g-c vity 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 theg/tg+uah6*+7dkyo x/ gb6*jua my;e e same material. Wire II has twice the diameter and+u/a7geym6;a +ex*gjkyo 6/t d * uhgb twice 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 material yjc)( w,u q )csp v7urpo;jsj ns-/9u:but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a re( ns,;p9 :scvjs7u yuro)-)p/jcuj wqsistance 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 p.gj d7bvpkd,op 6 8:zand radius r. This piece of material is then drawn so that it is a cylinder wiv8g6dj opb :k.,z7 dppth 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 brighfsgcr /5-2l 20jpfj amqh:e m7ter 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 at a given voltage-/2psfq amjl7hm f0:c2rg 5 ej?


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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 materia,cyx 7wq:6:an3 vum1lwpc 6 jjl. The length and radius of eml 6j71v:xpyca:qwu ncw6 j3,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 -n5sv*4s-;gt s lvpoga 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 in series to l o p4g-5;*gsss nv-vta 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 hu0pwj8m jn y;(as internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The vmp j0 u;(8njwyoltmeter 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 r uo -cmi*3kiav u*vt l-774ee;ldjj w3ight. The three bulbs 1, 2, and 3 - represented as resistors inulac j-ti7e iv;wl k-od3 mue* 74jv3* 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 atxoexcjs:;u 5 no v.49h the right. If the current in all three resistors is equal, which of the following statements must be trnje5o. xhov cux49;:sue?


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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 electric ckqz 0qu8z9xotgh8( ; tircuit composed of 5 identical light bulbs and 2 flashlight tgthu0z88q ok9;zqx ( 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 the simple circu r-o3e 2bliblj8/ ta*d2me5o yit shown where resistors R1, R2 and R3 are have equal resistan8-/abl235jo2*et l eo yibmdrces?


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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 s86g j:9vzsrh2s3 kw zteries to a battery. Bulb X is brighter than bulb Y. Assume all circuit6wzj839k:h2s vgrz st elements are ideal. If bulbs X andY 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 coul: nrnet-om2 +fombs will pass through the identified resistor in 5 seconds once the circuit was closed? - mot:re n+2fn


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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 simpleq 1qmrc2 lgry7 lop(x70d3y: p circuit have the same resistance, whi0c rm:7lrx pg31qol2(7qd yypch 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 (mm)*rqs ly7 n5rk*bathe 6.0 Ω resistor i*rnrl)( mby*m 7s q5aks 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, and R3 are cur m)b);*yc dpi gfm1*v.di*aqb5 j7ronnected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a re*y j m*girpf)ridm*;)bqb vca.5 u7d1sistance 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 are connected in parallel to a ba p+b3i+c/syvittery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in3b pyvs+i+c i/ 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. Wha 4b*iwm6p-y om6jz fm42 3x;g a0nsdwrt is the maximum value of the current under thesjmp xbf g4 azrsmydi6-4* 20mn;o6 3wwe 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 desig epysjbomi;w(wl dh9e - (94r..nak;gned to operate at 120 vp;hd.i. w9eyown ;( a(rk9s-m j4 lgebolts?

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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 ohmyo l/j 6kn ql( 92x1yvdh-*ypq resistor that is dissipating 36 watts of po*yvd k/1ox9 y(n62jqhyl -lqpwer?

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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 clotkxkfm*r7wtkpqi :l-4g *9tfc,5zvi - hes is marked "120 volt, 600 watt.” In nrtqk7-l*5wk:4pf-v*g ,imfi9 czk xtormal 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 resistaz76igc( gv*k mnces could NOT be produced by a circuit containing(zmi7g 6kc*vg only three 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 t qnbt43l*9l fzbn46dv he following equivalent resin f4 lvn3*bbq946tz ldstances 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 different ja41xq,,av 9d,g hm1j eaxna ;values can be connected together in different configurations. If all three resistors are used vjn,,jd; q1,1xa 9mxeaha a4g 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 t7q92lopie aua07)cmwh u;m f2o 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 internal resistance of the )7u;coahu7ipwm22fm qe9 la0battery 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 a wc8epu fya/12nd R2, are connected in parallel, the equivalent resistance of the combination is 5Ω 8ef/pu1w2cay . 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 such thxsii 5)k jio; dhik*qd1a5l8 4at it has a resistance of 12Ω when operating at 120 lixd ij5h* d i4o kk;a)5q18sivolts. 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 that is dissipating j7, tzlsoqjqu 6;ndbw4np0/3 36 watts of power?wt/qo736d0jn4l;u b pn,jszq

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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 am: /ca,mlw2gnc) e/bj qx )64ulog nl6qperes of current when connected to 120 volts. If6g/ou/l )wgel a2cmn ,jc) 4x6:bqqnl 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 g/lgqd w5(t;8lyvj6 j cost to keep a 100W lightbulb lit continuously for 1 year at a rgw(jd l 5tjyg;8lq6/vate 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 li3b(tld2i u2,(wka oob ghtbulb results in a power of 24.0 W associated with the bulb. Which one of the ((2lowd2 t3iukao,b b 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 w +;de clf175gk4hdcz a family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugg4ecd 75z h+fw;gcdkl1 ed 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 battery is connected to four resistors to fu pmtv,a9wl;;xw 0hr7orm a simple circuit as shown to the right. h vmx; wua l0rtw,p79;
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 f/1q 0(5v2lce59g-g o ymllnidxf b,qdour resistors to form a simple circuit as shown to tlc5niv91y 0qe5x -lggb,l /(mod2qfdhe 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 batteryphbn4s29m: 0axwob i5-hmm1 z, an ideal ammeter, a switch and three resistors are connecte 5s-o:1mba ibz h9np0wxhm42m d as 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an idefef 6t z0ow -(a3dioeb (ew9b4al ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram 4oz 0fow-dw ai etbb(6 9ef(3ethe 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 l7v (rl o4g1qrmlcej 30k2; tpthree resistors are connected as shown. With the switch open as shown ine4m7 lvog lqr ljkc;2(0p1r3t 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 o8rg1ay(yvb b,l+( sgthe right, what is the equivalent resistance? Assume thag+(bb(lsg1,v 8yo y art all wires 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 tk61tn-*:z b ) kbcwtzsn+*hye he circuit shown to the right with resi b w*k1-e ynhtskc+6:t)*zznbstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 showi*dves. c,0f us five identical resistors connected in a combination series and parallel circuit to a voltage source. *is ,edvu.f0c
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 resisto806a cpv)pp ;yyi i 5n9dqkv5rrs connected in a combination series and paral5;i qvydv 6)90ak8 rcip5pyn plel 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 identy k0 1rp tv,utd9ggp52v a7*gmical. Which bulb will k ,at59p*tug7v 1d 2rmg0y pvgbe 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 ammeterxx. ;/us;sn2o9lb d0u l5dqf z, a switch and three resistors are connected as shown. With the switch open as shown in thuxblo f s.q/95zx;d ; 0udnl2se 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 rees:h8x9.rwluwe)mev z2 o.2xsistors are connected as shown. With the switch open as shown in the diagram the ammeter readsz 22 o)hlxw 9.meseevx. 8wru: 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 r:e)utzc3j6q-ey u +k xesistors are connected as shown. With the switch open as shown in the diagram the ammeter readuejq e3t+-kx:y z 6)ucs 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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