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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 in the metal ree xwv+jqj2;7n5a /gwasistor connected to the battery. Which one of the following choices best describes the direction of electron flow through t2/qa 7a5jv xj;+ew wnghe 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 iniap/ww:xg+u,4n 9j59 tr ywsm parallel, the_________each resistor ip,uxiwj9w9wn/r5 t 4ma+s yg :s 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 wir:k 69 dercbgxwus nl0+j4w1fkv92*h 5h7ylyye of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb re:9 46fjhg172d+s lx k *yuw0yh5wv knyrcle9bmain 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 repu-(ao yho-. bplaced with LEDs. LED is the acronym for wh.u--a (yhbopoich 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 lengde +l9s7-lsqum), un bth L and cross-sectional area A. It is to be placed into a circuit, but it +b,-slse)q d 7nulm9ufirst 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 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 sapetf ,x w 0v6e:82lnkhme material. Wire II has twice the diameter and twi ,nw :l8pte kfvxe0h62ce 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)u7y/kx bw,m h the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would m,ubkxh/y) w7have 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 radi 3xiu/8m p bs33/flwpjus r. This piece of material is then drawn so that it is a cylinde/ui33mbfwp8xs3l / pjr with 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 brighter ligh0yuvz) v9m7uj gaxh): t bulb. He decides to modify the filament. How should the filament of a livja )mguz:x9u)0yvh7ghtbulb 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 the same m2;pf).nx5 oyi nc:.slyc p2*oa afla2aterial. The length and radius2.xpp2ayn.lcn;ao) f:ai2l 5 f ys*co of each 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 r, vqbd-8scc ;wesistance R, are connected to a 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 a fourth resistor.” What is the ec,sv;-8 qwcd bquivalent 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 a8ff 3b tl+.ptresistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The volt f palt8.f3+btmeter 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 compov x+2n ebj(.zqund circuit shown to the right. The three bulbs 1, 2, and 3 - represented a+j(q2 bvn. ezxs 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 electrical circuit at the right. If the ez3y3wbo *d0sdn;e6dv uy1i w.78zpk current in all three resistors is equal, which of the followiy pyk0.3i z6 *en zb8vd31ud wsdo7ew;ng 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 represents a sqq8fuh e f-h6 itnp-h465g7nc 4tu/of imple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (orufq ft6/6q4tohu- ingh-f 7n5 4pce 8h 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 NOyafe1pm9(dm z a xm,a3w+:m0t T true concerning the simple circuit shown where (1wm 0e+:dy3tmzmpm xa a9, afresistors R1, 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 connecteza9-rgc)y l - fs.4kt12e6ptga7eang d in series to a battery. Bulb X is brighter tha-at)-y 1 gf6tkslge4 9.gpz2r ean7c an 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 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 willh(:hqipog qj-m1 z q,) pass through the identified resistor in 5 seconds once the circu , goqq:phqzh(-1) mijit 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 m:a;yvmksd7fdqe1 + 7pxvi:: in the following simple circuit have the same resistance, whiims ;:e7v7mkyvaxf dpd1 q+::ch 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,-t ac qf zy9zx-68nig) the current through the 6.0 Ω resistor zg6q8- 9tcni- )yxzfa 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, and R3 areqz* 2 ev )jc06cv:kjbht (caa( connected in series to a battery. Suppose R1 6q 0hb:vzctj(kv)*e2j(a c cacarries 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 resistorbu 6,+oologrq 2iul(;d xl 1e5ya2d*ps R1, R2 andR3 are connected in parallel to a battery. Suppose Rd;go61qe2xu* 5d aol(o lip 2ub +yrl,1 has 2V across it, R2 = 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 is rated 1200 watts and 120 volts. What is the maximum k a xze( 6babzcc*gsw3c9x7x(aih8 j7u3:f2a value of the curreb37x i 8 b7ajhge6x(2( fcx3uzcsz:aackaw *9nt 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 lilsq9bycss;wun.2 30kghtbulb designed to operate at 120 volts?ss 2;03w nblu .cyk9qs

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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 throuau92,vvvvg/)bk wwnz(vj ,c 3gh a 4 ohm resistor that is dissipating 36 watts of jk/vu zcvg,3w2vb )a,nv(w v 9power?

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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, 600z e;qg)s(d e .6y,okpj watt.” In normal use, the cur kg;(,pd jqeey.o6s )zrent 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 by a cq ,/i ywv.(ibjircuit contain., ivyiwj(b /qing 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.caf1l0x: fqmk( js)i8 Which of the following equivalent resistances CANNOT be produced using all three resistokism 8cl(f q01:a xjf)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 differenwc,rmhqc 123dak(r peud 2/5bt values can be connected together in different configurations. If all three resistors are used in a circuit, how many diw/ br513(md cuph2qkr aed 2c,fferent 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 batfn+eogia9k5x z.jv0cm ;qc-.tery, a total power P is dissipated in the circuit. How much total power is dissipated in a 5m+ zxc;vqakgcf0- 9ijo.n. e circuit if n identical resistors 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, arg*c)rh dgusf( +,3q fzd e8l/81pclfb e connected in parallel, the equivalent resistance of the comb(sf g8/*,hcbg3 qdlr d+c1f pfz)l8e uination is 5Ω . 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 that it has a resistac) *aw)pq:neq nce of 12Ω when operating at 120 volts. What is the minimum amount of time that it would tpqcwaq: *)e)n ake 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 36 wa3q28c4o8 tbyz+ot tg jtts obo +4tozq c23y8g8jtt f 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 amp1nu gujg y643feres of current when connected to 120 volts. If th u14y36j ngfuge 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 keeo5)/+y1qogg f-evs 5wha.ktlp a 100W lightbulb lit continuously for 1 year a-o 5a51/wsgtoeqlg+yhf )v.kt 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 4l fn87r (:wnzi.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best re7nri8 nl(wz:fpresents 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 rauy5.vq9wfm y js)0y- vted at 500 watts in a 120 V f5w9 0vvyyy-s q)m.u jcircuit. If all computers 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 battery is connected to four resistors toqq ;8y pa oa0q3vk6b0l form a simple circuit as sh q3qapav68y ;lq 0kbo0own 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 four resistors to form a simplt/df7z dvex-(e circuit as shown to the (xd-t/zdfv 7eright.
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 switsx wrb1ri ;6l(tt:yo7m5209xbdeaa vch and three resistors are connected as shown. With the switch open as shd9 at0baerx rsx : t1mov72i;y65(l wbown 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, a switch and three resistors are co gl q)rz ;/12rz3bjr)8 1empncyvucf3nnected as shown. With the swr z2 vy )bcg/mj33 n;ce)1fup18rqlzritch 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 batte.t*:d+ o yxz v-4d7kevi, ykxlry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram thdx y.kvxk di-:74+ e,y voz*tle 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 the right, what is the equivalen ximx(kke8 5.,foz1oot resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistfkxo8m.xz15kio o,e (ors 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 resi)( cqhn3iltb3stance of the circuit shown to the right with resistances qi3c(n)3b tlh $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 l2rssayhojm:ltd (1q.oy4 o :eu.20eshows five identical resistors connected in a combination series and parallel circuit to02stso l .yq.(: ooury 4:e2hal dem1j 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 4)lh dls-qla-lie1 o0 identical resistors connected in a combination series and paralle1s l-do-la4 hl)ql0 eil 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 identical. Whd5hv f :z adx+l2 y-m.qw.r7l2 apm9hbich bulb will be5xlyqfah.92a+m zh- l:m 2 dpdrbvw. 7 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 ammeter, a switch and three rzzc8w ynsg: w: 0o13)gvli7igl 62vetesistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampe gvi)zin v3217 z:wgc loyw0tsle:6g8 res.
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 batteryl2hv8 ndp.* :;ca qyng, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amme.dg8 nnqv :y2a*pc; lhter 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 resistors are cozs1w-bn)*jicp h. lw z9aea4t(.0 4ncs-y okgnnected as shown. With the switch w yn. h9)snoicjs1--bw gakz. ac0ze4lp *(4topen 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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