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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 resistor c- q;tfa w+v6(d-gd twjonnected to the battery. Which one of the following choices best describes the direction of electron dga-( q6 wt-dvj+tfw; 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 resil,/nm( 3 ,yrstv5ezjx stors are connected in parallel, the_________each resistor is the r jx nzel5v,s3t/(my, 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 causekhymf+8q5lb- s the filamentbm8 -kq+ ylhf5 to become white hot, 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 ayvz 6gqrlc6a:w j6)d ;re being replaced with LEDs. LED is the acron6qc; y l)rgv w6zja:d6ym for 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 length L and ctg*s9ogfh3,zu h; ah(ross-sectional area A. It is to be placed into a circuit, but it first must be cutso9gt(gu zh f3ha,h ;* 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 same material. Wire II has twice 50 9db9q e drdw qenjyt(095ltthe diameter and twice the length of I. If I has0 y bne 9dj dtdrq0qt9w55l(9e 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 diameter ak zuglgf/z 26q/xn+l6;css8a nd half the length of wire X. If wire X has a resistance of R then wire Y woulg8; sa6g fuk/n2l xsq lzz6+/cd 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 material jv.e/fvg,rfnt(vddu p) +x4tb17jd 4is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of this procedt ) fnpjv7x dv(+,e/f4jtbrg1vu d4.ss?

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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 light bulb. dpxe(z)*v(zn He decides to modify the filament. H)p*z (nx dzv(eow should the 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 a.k 88 u z0x;/ p4dj.c,eslpofhytk;d the same material. The length and radius tfy p e/;c.4,uhk p d8sjkoz80a;ldx .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 resistance R, are connectg0,v-j5 dnhf tne5cm8ed 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 c - h,0 c5djmgn5ven8tfonnected 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 txpo/ 7 gjdr n+4yt572vqo1kfinternal resistance 10.0 kW and the ammeter 2ygt7vjrko 1 dq pt xnfo4/7+5has 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 circuit shown to the right. The three bulw 68e aijv16c bl8xi0rtb3c8m bs 1, 2, and 3 - represented as resistors in the diagra8i8e0ibcbx 31mrjwa c6v68tl m
- 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 ljgmost60.ek(*k m ee/f b4y-the right. If the current in all three resistors is equal, which of the folo( jmk bmek.6ye*0fg4/ls-e tlowing 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 sij2 i33q3d fcoiga2 wreq1/o e)mple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Wh2/o3 3f r)d3q2aw i1q cgiojeeich 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 1d.b4mqv(06e 1b iear+h tirx(w)qs tconcerning the simple circuit shown where resistors R1, R2 and R3 are have e ieb1 dwmt1+ vrbqex(aitq46(r0s . )hqual 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 lightbulbrw +(x v50x0lb3u8k4ec dpp ihs X andY are connected in series 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 batteubh3p 4w 8v0kepxlr i (c05+dxry, 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 the idents0s 21,yd jjxkified resistor in 5 seconds once t0 sk12jxdsy,j he 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 resis;+ma v,qz x-e-)ujbgators in the following simple circuit have the same resistance, which would dissipate the greatest pow,uam+;xb)q va j-ez-ger?


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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 accompanymcx(xpq 6lq f2*9i wpps(vrxz :2ae;*ing circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltag f c;a(pi *2ps2r9:m l(xeqq*6px xvzwe 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,t4elt nsq:t lq 18+ce, 6zcqj 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 tsj,ntc l8l4qt1+6 :zeqetq, che 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 parazh .7cks4 n+l 2rl/xnxpj5t+gllel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipatesn /5cljsh7k r.pxn 4t++glx2 z 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 a0w4,w;9gtdrtb 8 ykwk nd 120 volts. What is the maximum value of the current under theswrtk98,4kw;tdb y 0g we 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 walo.8 4sggpg3ftt lightbulb designed to operate at 120 .g4 go83sgpf lvolts?

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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 is dissipatingses*fn*3 a/f jeta+s hk(i/s2 36 wa*st +ei( 32s/ae f s/nkahfs*jtts 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 cl, a,lq5 (cmk 7/jbqt4wrmv sfv;hq6/aothes is marked "120 volt, 600 watt.” In normqf/,v/4k ,rm7vt 5q6(;lbcjhqasm w a al 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 folln,9pj rc5b/k aowing resistances could NOT be produced by a circuit cont,r pc 5b/nk9jaaining 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 thrinr4zf t i8/x7 .g6axmb3gh(a2 h0c flee 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produc70z/g(3g2.8 i xfc6rm lhax atnihfb 4ed 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 values can be connected together in diffu;3d1r ghhrw ,m: n-swerent configurations. If all three resistors are used in a cirh1-urwh gm wn;,ds3 r:cuit, 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 txy7bx oli4 f/hie. (pqiwn/5.otal 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 batter7ql xf xe i4/nhbi (pw/o5i.y.y? 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, are connected in 9lw cco+c7x,gd6oo:lij .) jbparallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about thecld: ic .j,box6c 7wl9j)goo+ 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 resistance of 12Ω whex )owfvdpwvu.+;7q )w n operating at 120 volts. What is the minimum amount of time that it wo owuvq+w. )d7vx;pfw) uld 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 4b( yp6; 5ccquw ohm resistor that is dissipating 36 watts of p(wqyuc;6cbp 5 ower?

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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 amperexjn hp7 u;q i((wbncqh2u,*:t s of current when connected to 120 volts. If the price of electr bj2qt( 7uxn:pc*wn,( hi hqu;icity 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 ch bq m7s4dxsq cv4-u07ost to keep a 100W lightbulb lit continuo vxsh40s4muq dcqb 77-usly for 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 cut eygpv86c ao38b-iz3rrent of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Whi3apy8ig8z- 3b6ec otvch 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 owns a computer rated at 500 watts in a 129yh 15wjan 3ebog hl(60 V circuit. 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 93wbol6yj5 nh(ae g1hthe 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 form a simple oxo7*+ *yi) xz yodrd/circuit as shozo*oxo/ 7*yy)+ irx ddwn 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 connectfq6 lkw 0vcr(,un)dw*ed to four resistors to form a simple circuit as shkrqw 0)vln*(wdf6cu , own to 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 co*gy; e 20rf3e v6bedqqnne2g q3 eyb6;0vedrfq e*cted 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 ideal ammeter, a switch)7j9osbe l7 oa3-rwjb-a g ty27l/ku j and three resistors are connected as shown. With the -ea3y obb w-ru7 7sj7tjk )9ll2 joag/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, an ideal ammeter, amvt 5svgp+y wm2w80inv3g2 yc5.ko u( switch and three resistors are connected as shown. Wi +tvvm.vuog(m 5 pkgyni2wyws5c 8023 th 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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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, 8n +tml-,- ,n axi5(e ulz1c 2rwszcek3ze;ktwhat is the equivalent resistance? Assume that all wires are ideal, the battery 85a, l,z c (zmslzn-r w; e3t1t ui+xc2e-kkenhas 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 wuz 2lttf(06mna udb vi:h38)of the circuit shown to the right with resi0zm2u3f)(:8b u hil nvt 6dtwastances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belobx bpvv8f 9;frxm ;,ye208bgue)ae2 cw shows five identical resistors connected in a combination series and parallel circuit to a voltage syf)p9ab02xru2,;exbef8gc 8vbve ;m ource.
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 resisto +p f: 6zylve3+: 6.oxggwnbqrrs connected in a combination seriesw x3+b :ne+l f66 pg.gr:voyzq 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 are ie.os7wy-fbg) dvc 0aw+h2kq 6q,h y;sdentical. Which bulb will be t 6-,2ysy)qs h +k.bcqhof0wdga7e ;vw he 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 resistorln 32:dxyk2wus are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperelkx32:wn2d uys.
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 +b:o*g ph obh2resistors are connected as shown. With the switch open as showh* hbb ogo:p2+n 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 ideal ammeter, a switch and threy:/;glbq jfsak92bu3 e resistors are connected as shown. lj;/2g yskfb uab3:9 qWith 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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