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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 me8un i9tqkoa+q3a jhs(x p,.e/ tal resistor connected to the battery. Which one of the following choi.s3e8qapxnoth+j k(/ai q,u 9ces best describes the direction of electron 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 parall) z(tp; 8.jis/ nepae jfpw.s;el, the_________each resistor is the same.;.pj/ n()je z8;aies fp.wpts

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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 causesjf2 +w;s fukob jyd bf4b3.)2j the filament to become white hot, while the larger wires connected to the lightbulb remain m o2fw2fu;b.d+ 34bkjj bj)s fyuch 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 bepj1-wpul-w3 u w,cd+qel2ov4ing replaced with LEDs. LED is the acronym fw2 d uv4j poq,lwu 1e3l+w--pcor 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 ree dpp7-jj7 3o fpqu-s8a8x y3vsistor has length L and cross-sectional area A. It is to be placed into a circuit, bjqsp-a7up 83y8e3pjx f 7o -vdut 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 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 materxl;*2fhc,) b0g:5dslgl-v k - kqq xlyial. Wire II has twice the diameter and twice the length of I. If I has resistance R, IIq*kcxg dgvlfb-h :2-0lx,;l )lq5yk s 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 )myd5e lcls3 )material but has twice the diameter and half the length of wire X. If wire X has a resistance of Rdc y5l 3)lsm)e 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 lengt);9 k rarm fnsv.m3;ch sxye57h L and radius r. This piece of material is then drawn so that i )7e.h9vam cr;s;fksmy x nr53t is a cylinder 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 lit4 jtm9 ; rr1rpjaax23ilev )-ght bulb. He decides to modify the filament. How shoul 2jp9jrr3ia;)a1xv4-rmtlte d 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 the samy 1km :u;hl;/,hpcrt6t 8zcqae material. The length and rrp :t1 k hc,hmq/t8yzc;lu6a ;adius 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 crny(/+gx 3(t gyogqha/ i00y;lnc 6nponnected to a battery in the following way: “Tyxntn0(gcyganiq gy+ 6/rh l/(;0p 3owo 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 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 dial)mw9 lt ush1p6n/c:d gram has internal resistance 10.0 kW and the l u p/hmt1dcs69 w):nlammeter 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 cq w:id-c)as*6 hn5jv7zx1m waircuit shown to the right. The three bulbs 1, 2, and 3 - represented as re61 q7mc5:x waihjva- z n*s)dwsistors 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(azaoj/h xe w ds080l+/uu a4b at the right. If the current in all three resistors is equal, which of the following statements mu0x josa8u0z(+wlhead/b4/ aust 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 simple electric circuit compou. d. h,qp*tsjsed of 5 identical light bu.,. sdjthqu p*lbs and 2 flashlight 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 followingk +xnzn ki1f0w1 zl. 7ug16htx statements is NOT true concerning the simple circuit shown where resistors Rx.6 i gzn11ulktkw+7f h1nz0x 1, 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 cokb8 dm pdj55p)nnected 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 battery, which one of the followi p b)djd8pkm55ng 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 identified mr :xcu-c 7j(uresistor in 5 seconds once the circuju-m:cx7 (cr uit 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.dr3n6v zx kz5 circuit have the same resistance,3z nxkr6.vz 5d which 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 diag7kaxb jei *z*50 y*ombram, the current through the 6.0 Ω resistor is 1.0 A. What is the power suppla75ok *be **zjy0ix mby 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 resistor he zmpqas;0.4s R1, R2, and 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 pe as;p4m.h zq0ower. 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 resisi-ohl99uhr mey*efq -*n7 w1ztors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipu-re9y-oie 7lfzmhh 9n 1 qw**ates 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 ivi eu1 d8f(r5h,bc;ot s the maximum value of the current un ;cu 1hv (fd5eio8tb,rder 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 lightzcvm 2jqnb43tr , ,e,rn7 h(qmbulb designed to operate at 120 vorq jz,n( h4m3et 27vbcq,,mr nlts?

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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 z la:lh6m 9p1/zhxpdarap0 wd, kw10 +4 ohm resistor that is dissipating 36 watts of p+00adpwlhpk/9rdwa z :ah 1 m,1zpx l6ower?

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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, uzx0n8zbwmz (46dt; y-pfy;i 600 watt.” In normal use, the cbxznwm;0y;t df6i4u8zy p (-zurrent 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 (l;ciux wh pjs-ekx4 :h*b2x/ resistances could NOT be produced by a circuit containing only three identical 6Ω*:lxucs(xk w;/b - ie2p4xjh h 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 follo 16 *l1v)p qrmvspzlr97ia/ ewwing equivalent resistances CANNOT be produced usinvl paz )1r lwsr7ip1qmev69/*g 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 bepx cy1c8x+tj *khvw s(/q*m5y connected together in different configurations. If all thre w pyq j sk(xvtc*hyc+5m/1*8xe 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 ba4j 4li;(9ko fxtpuf*wttery, 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 io xffw4(u;k49jp *ltthe 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 R1xise+r73i6b;j qq rq * and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is correct3q6;*re+7qbxrqjis i?

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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 when operu ;ui t:z7ag fw-0nfg(ating at 120 volts. What is the minimum amount of time that it wti:a;0gg ufwf (nz u-7ould 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 thapdhmvs 3 dmv0(*v s/i9t is dissipating 36 watts of power?m 3/*v 0isvdmhd(s9 vp

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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 vb bo98,yxwgo( +zaj*v olts. If the price of electric9ax*jb 8v ,gwoz(+bo yity 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 ei,m8 (qbi c*ewhh s(st 91mz),isy5t 100W lightbulb lit continuously for 1 year)(wm9 teh,bym 5ih esqs,zci18st*i( 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 current of 4.00 A throu1;7jbvh(.f wkb-dh aclu 5x i0gh a lightbulb results in a power of 24.0 W associated with thdiaxkl0. f( - 7hbwhuv5;jcb1e bulb. Which 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,yh ucf9b-mkem h 2,5x computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is t5m cxb,,ehk2f9hy-muhe 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 tou - -jyx)pnhv,8 :yoiliq .ab1f 2i-tel0n:cg four resistors to form a simple circuit as shown to thefil2q 8.vpg10hc-)ij,no :xay yeb:n-t ul i- 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 connecte bu47vkk( vd7ks. cfnedr.y5/d to four resistors to form a simple circuit as s4uf7vkd7.n. ecb ( kvyrds/5khown 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 thra,i tn. ukw6yoep ).w,ee resistors are connected as shown,ypw 6.e t.uik)ow, an. 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/y 7u/,ozimhr5cfff e.aw )y4, an ideal ammeter, a switch and three resistors are connected auy,ei.c )owf7a/ z54/hyff mrs shown. 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, an ideal ammeter, a switc 25f ( 7fcao,fh,0w sduqakab+tu5fp*h and three resistors are connected as shown. With the switch open ,50cupfd b q*a2w + fafot(uk5s,h7a fas 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, what is the equhleqm-hz +q0)ivalent resistance? Assume that all wires are ideal, the battery has no internal resistanceq 0q)+ z-hmehl, 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 to the right wi./mg5p 67daobjuy jh+ro l *(dth resist+/u rmd 5 *d(baljj.poho6y7gances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 shows five identical resistors connected in a .n:l)h.7xdr kn utz3w combination series and paratdw rn)3x 7nu.kh:.lzllel 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 in++5vmfa7i sb7h*swy o:u;nod a combination series and parallel circuit to a voltage souroify7 s w*ba:+57mhsn dv;u+oce.
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. Wh6k3c wcgnr;ckq l 8s4eyh;;/e ich bulb s ;4 cklg e8;qny3k/r ;eh6wccwill be 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 batt0 4(qvm,6z sbjxtnd; yery, an ideal ammeter, a switch and three resistors are connected as shown. With the swiq,6 d nv4 myjzbstx0;(tch 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 ammeter, a he r*vi1d v ct 4;,(am+z(csicswitch and three resistors are connected as shown. With the s zsi*ihct(m+arcvv 14 c(de,;witch 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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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 an)izysdpta- 8 0,l6omzd three resistors are connected as shown. With the swi )i0sl86pzadm, tz- yotch 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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