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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 el4uhwajsq; s4vct5v,-q6b r5lectric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of elect5sv;5rls h4ubaq -vc4 q j6t,wron flow through the resistor and the direction 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 resistors are connected in parallel, the_________each resh36c sum g :0dy l+r7b*oj7wp(bsz7h kistor is the s73kh(:d7 6c0gr mhu +p7bz*yso lw jbsame.

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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 t/tmy+)eda9 uw7k vqdrd3 +mni7 .-mhwhe thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires conn3.7ew)kv/dh mn+-+a9i dr mtm 7udyw qected 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 are being replaced wi9vegdo2 o/2pg 0aw ;rlth LEDs. LED is the acronym for which one2rwa/l0opov; 2g dg9 e 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 l *d2u w7)qidd)zwe jl.ength L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in half so td7ld)wjz2 udq) w. ie*hat the new length is 1/2 L. What is the ratio of 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 tn( jqmhig, 02yzd9mye* h--0cvee n* vet2xh1he same material. Wire II has twice the diameter and twice the lengvyeh2m t,(g* yd-j0m q ehc *znin10 2vx-eh9eth 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 but has twice the diame )3*1ggjne z1sdsoco2ter and half the length of g2ezn 1j3osgc)s *o1dwire 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 materis8pd 3ms2p)q ial is then drawn so that it is a cylinder with new length 2L. What happens to th3d qis28 p)smpe 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 bri,hns; v5h.yf)sgn6q + c ass-mghter light bulb. He decides to modify the filament. How should the filament of a lightbulb v sa.);+nng-s c6sh5hy,s m fqbe 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 the same material. The length akoihk00 q a**rak 90zsnd radius of each resish rzq00o*a ka k0*s9iktor 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 connecte* r. 5a1l fv-vx) f/e//davdtg3a aizqd to a battery in the following way: “Two resistors are connected in ser)*e1-l/v/da5zvqf3ivfdga xa t . ra/ies. 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 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 internal resistaa dha qda7ft8dtp.631nce 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter r. ad8d aa6 h73qp1fttdeading 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 rightje,4wgmq nk* wq5l j7(. The three bulbs 1, 2, and 3 - jl4w,mk*7 gq(nq5 ejw represented as resistors 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 edwvq*0vr*e7)/1hnzjf 4keuyp p)c f +m rv c7-lectrical circuit at the right. If the current in all three resistors is equal, which of the foll/)4jewhv* ve)y pm-v rc7 *nfcqur fpd7k01z+owing 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 rigevuq gsi1 0 wbn.k463pht represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bgne i.0sv6kq1p ubw34ulbs)
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 Ncq x1ww,e0 0r1t*dj6vxduo(t OT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistances? *vu 10r j(,xcet1qd0o dw6wtx


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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 seriec4b+lwrdlk u6p(d r .1s 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 batteryd wb6r4ruc lk.p d1l(+, 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 lxtk:fpx +s+u* 2m:b d through the identified resistor in 5 secon xtd+:bu: kslm+2xpf *ds 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 following simple -cgf 3)yn44mjk be3ir circuit have the same resistance, which would dissipajgm)k 4niey3-b fcr34 te 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 diy;oo; ;kr8vh bagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power sk ;8ryvho;;boupply 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 xgof- /1 7624qngbh6 xe6lcajlwpe(x R3 are connected in 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 t( 7w64anfc b/2 epx j61l olg-qxg6xehhe 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 arem7ng5qje 4 h0px 9/tty connected in parallel to a battery. Suppose R1 has 2V across it, R2 =y9 4/qhp5 g n0etxmtj7 4Ω, and R3 dissipates 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 +f- njgp*zyhd1as/u; is rated 1200 watts and 120 volts. What is the maximum value of the current under z p;/f yhs -1gju*da+nthese 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 dbci9r+zh ,s2vk z)zw :esigned to operate at 120 voizzs+,)w :2 cvhk z9rblts?

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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 iwqfdd7og 1n (((t1d:mtz:zqo s dissipating 36 watts odo:q 1(m(z t:fwqd1 (gtnz 7dof 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 volt, 600/bmgvmcr0duzokxt 8 y ) 9mk4;k06g m4 watt.” In normal use, the current in it y4uz6 8 v4;kgb)mm9tokgdm/k mc0 rx0is

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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 f6 ) j3sxebmb)kavn( g)ollowing resistances could NOT be produced by a circuit containing only three identical)mxb( n b 6e3vg))sjka 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 the following equivalecu-leg2)7n/ e /w7d vb6bfa4spdbmj;nt resistances CANNOT be produced using all three resisto2 -m egbw7j4/c/d dnbe b7 up;vla6sf)rs?

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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 differe2sp8wl 8k2.d xwt8-norg+l5.kwtli l nt configurations. If all three resistors are used in a circuit, how many different values of total resistangnxw.klo wd88rll2 pi8.t 2lk+ 5stw- ce 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 connectd /op2z so7;gxed to 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 sz pso2/7d ;gxoeries 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, arer1 vf3)e sx-dk a2wz/y vbahzb5b56:j connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the5h1brb sxk6j-vvwy5zaa32f z/)b :e d 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 that it has al rrlm4k v(w x2-lhyl5 1m1xk: resistance of 12Ω when operating at 120 volts. What is the 2y m v( -11lxhw4 lmkl:krxrl5minimum 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 dii/ 9;fe , 98jpokjcniyssipating 36 watt;99 cj8/ piekyj,f inos 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 when connected to 120 op -(-d :fbxnxvolts. If the price of eon(-x-p b:dfx lectricity 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 itl6zdm*y52pviz 90scwydo2w5og 0 i+n cost to keep a 100W lightbulb lit continuously for 1 year at a ratezo yd2vyni5zm l 9+p5os wiwd0g026c* 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 resulh(or(y3; k; jogab wg7ts in a power of 24.0 W associated with the bulb. Which one ofw 3ggj;7baor (;y(h ok 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 computer rated at 5k1/-sv6mwxei m 3p8 2 hir3bn3et:q jm00 watts in a 120 V circuit. If all computers are plugged into a single circuit 3i w t8re peq-3v:2si3x m nj/1mkm6bhprotected 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 (;*v7rtak :wk0x rr5nfxh 1ax;,paiu form a simple circuit as shown to t : tipn7akr1;5x v*au0h,(kxrwrf;axhe 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 connectef 1b weh8*eegja,vf40vyu 4 2jd to four resistors to form a simple circuit as shown t4jw4uyagf j128f0e ,ev b *hveo 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 are conb7wosp3/b 6rgnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amb3sp6bg7rw o /peres.
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 arrb t()tg+hk1ne connected as shown. With the switch open as shown in the diagram the am1+)bk(tnrh gt meter 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 three resistors are koc9.r8vkk 6u6 rcww36x u(uu connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperr 6 uk93.6(cw6c wxurk8uo ukves.
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 the- vrb1h h +cmqfexb5.2 equivalent resistance? Assume h-q.v5fx1 bh+er cb m2that 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 the circuit shown tb7g 9q9vtxl-r b293gt a(wce to the right with resista cv t 99(g-3qtxtlabwr9be2g7nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 be-lcuvzd (u wz (/apj8w/(3y(ueda:oolow shows five identical resistors connected in a combination series and parallel circujcaz:u-wlwu(pdz(d y v 3oa8(( //oueit 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 showsij,4mg u+e gt: five identical resistors connected in a combinatio: j4u+,emigt gn 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 ofp..fbn*ua mk5z f9w) jw-4xnz the bulbs are identical. Which bulb will be the brightespa4f9wj ux) bfn*w..zkzm n5-t?


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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 sr4hkk l/75ka+fnpn 0 gwitch and three resistors are connected as showlgh n /r75p0nkf+ k4kan. 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal ammeb b)t0a d2-pej8pw8u iter, a switch and three resistors are connected as shown. With the switch open as shownbp8e d8)pb w0t iuj2-a 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an idealp 7 f:ufavt 5 *ba59mcd-(dbtw ammeter, a switch and three resistors are connected as shown. With ta:wmuc 5v bbtd5 *t9 (p-afdf7he 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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