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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, alj4xn 4lt55j kn 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 the r4njj5 5lt4l xkesistor?


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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 connectedsr4-,ejeh22agv gaie m t y);2c-h,zu in parallel, the_________each resistor u)-sgvy,;g jmi-2hz 2eec4 htea2a,r is 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 wire *kmsia 4 gu.mrc:x1d5of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much co4c .gkuxr5amds i: *m1oler. 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 with LEDs. LED is fh *u qnuf/9f0the acronym for which one of the following chuuhqf 9fn/*0foices?

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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 resist:u+ ob .0zp vxpldtm/;or has length L and cross-sectional area A. I0dx z.:mvp/ut;+bpolt 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 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.)bkutproy d h5* a:ggo2f7caw8e,t5i:vco :: Wire II has twice the diameter and twice the le7 5 tw:hc:ogba:,2v:5)ftrpe co o8*gad kyiungth 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 o1e mvqgwt*).qf the same material but has twice the diameter and half the lengtgwe*qvm1) .tqh of wire 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 cylindricalox0;i fmyet0wl 7luky80*ab4 resistor has length L and radius r. This piece of material is thefko*;xyi74uyma0twb le l0 08 n drawn so that it 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 light bulb. H;bn 3zz* ,tdeilpl-q)d3np 8ke decides to modify the filament. How should the filament of a lightbulb be modified in orde* 3z3k dznp,lt8delp ;n)biq-r 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. str;)vegf j 0y/c.w l72 ltta*The length and radct) v7elt*.0 /jy;t2 ralgsfwius 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 connected to a battery uvi9ih.69zo0 qjji19of eg7 u in the following way: “Two resistors are connected in series. This combinati69vguo if. o1qj9z0iehui97 jon 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 j6rms3rn om-2gw6 ( ef0gxb ;saccompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0jrfnm(6 xs630g-emrw ;o2gbs 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 5h j93j.gmin9e7oo e fthree bulbs 1, 2, and 3 - reg9jh5on.emie93j of 7presented 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 elec9d8gcnslujcodh a ea0ec7jc;.3y 9* 3 trical circuit at the right. If the current in all three resistors is els7u03 c39occc dd *ea .g ay8;nj9ehjqual, which of the following 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 simple electric circuit composed of 5 i a3b)5dd b)g t6+gxhnda*5g;k0kxn khdentic*b+)d) 5hk0nh3g tgb5g;a adnx 6kxkdal light bulbs 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 following statements is NOT true conczw y i4 x.t,oo1d5(fguerning the simple circuit shown where resistors R1, Rtf d5 w.g x1oz(4oi,yu2 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 andz,dm.e05 r wveY 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 battery, which one of the following choices best representsdm rvee5 .z0,w 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 c svpq-3kuh ejg4nleyseduig ; 0s+ j* b.;3d22oulombs will pass through the identified resistor in 5 seconds once the circuit ug j.egqesk-b n33;2h2uj lsi 0 d;*ey+vsp4d 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 t(pte5j;ah / nvhe following simple circuit have the same resistance, which wopje/ha;nt v 5(uld 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 accompanyda(6n(n9 hg :er+s ijring circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply vorgi:(dj (6hea+ rs9nnltage 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 arei*ie1h.yjqe e:7cpzd/cc cnf8y l8+3 connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, :7 .8ce cpiqfe1yn/ icj*3celyz+8hdand 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 ik/n(xy:0am/ z:apt u 0htku7kn parallel to a battery:t/(t7 z pnh0 kmux0akuk ya:/. Suppose R1 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 wat sdf0o5q,d-v8v fuqm cv,t6/ its and 120 volts. What is the maximum value of the current under these cond8- f,v6qot05/, uvd sifdqvcm itions?

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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 amgb -68p;bp( n o5rq8 18hxicknel,k q 60 watt lightbulb designed to operate at 120 volts8 ebmppi-l8q51xno8hkkqc n6,( r;gb?

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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 tokgc.k868i - kotz l;whrough a 4 ohm resistor that is dissipating 36 watts of po.ooc;wk68tzi8k- gklwer?

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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 clo; m )vc7l1fzj8yew4-qrv. r oxthes is marked "120 volt, 600 watt.” In normal use, thrwxvy4;m- vql1f 8r7.eoz cj) e 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 resistj2*f;: yix3eftidug8lin2 2 pw;amx 4 ances could NOT be produced by a circuit containing only three identical 6Ω resistors?l:4 pxi2; wf;ia fxemn d3j2i2y*tg8u

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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 2:d5q6 2mq xjitvrv5o three 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced u vo5:r ivjqmt6x252qdsing 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 83v( - duyyxvy5 mxz plei(m++be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be produce(m+ ep -yz3vd5(lymvy i8+xuxd?

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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 re)5 0lukly 0.bog3wijr sistor is connected to a battery, a total power P is dissipay0r i5ul b0log) k.jw3ted 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 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 resistgu.i05h;z 7 kqgg7pa dors, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about t75zdgga70ug hk;iq. phe 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 resistanseng-q4 an-.w* g;tulae*8o pce of 12Ω when operatinn ;w oe8qs.-*l-nu*4t egaap gg at 120 volts. 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 flo gi*nat jz:e,l5 j:6zhws through a 4 ohm resistor that is dissipating 36 watts of pow5tz* l:j j :h,aegin6zer?

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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 hfx we145v1o-x *tjtfi c6 p4n13 amperes of current when connected to 120 volts. If i5j4cwvx fn-teo41p1xt h*f 6the 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 keep a 10 d0g m34 i6 mx6wtxrifla0ql:40W lightbulb lit continuously for 1 year at a ltlgd 3qx x40m06mr 46faiw:irate 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 ss6nd oe1 p)6ia lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best repnpes 6is1do6)resents 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 watt lo(pj1o4/-u uf zyhbgw2j1l 3s in a 120 V circuit. If all oz3lo y11lub2hjp/w u-j( g4f 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 conne+z5j+h-dn4yj g,7j bm b tqm:wcted to four resistors to form a simple circuit as shown to the right. +bn4+ygq:b5 m 7,dmthjj- zjw
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 kr 33w5kfcrd:b;ixx ,four resistors to form a simple circuit as shown tocrk i xxrkwdb35:, ;3f 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 conn/wxcb jfq.u4fqi 3m;s6 2ac7 sected as shown.c63;.42/fq saq iws7mjfu cxb 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 and three resistors are cr.3 zpz::zpw 2ve zga.onnected as shown. With the switch open as shown in the diagram the ammeter re p.a 2v 3gz.:zpwzzr:eads 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 resist yk7 oyfzz m)/a.y.34uywr bo9ors are connected as show 7uar)o zbz9yyfy.om3y ./k4wn. With 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, what is 9;y)n,9 :risr kwvvkqthe equivalent resistance? Assuyrw vs,kk :n;qvr9i)9me that 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 equivalentm ffcqu.i ;jvd jtx61s613(wv+jv1mfh(n lx 1 resistance of the circuit shown to the right with resistan;w1cjf1xd.+(31vvlxf6vtnh s 16qj iumj f(mces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connectedmbl*s-b2fo dl.d pchz(v**+l.o+v 6dr a(esq in a combination series and parallel circuit to a vol p(ae *olvdcobhm.v. 2sqz-ll *++rb(dd 6f *stage 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 a combin ap;qd,c )0gey z o8s4lfmvo4/ation seriesfpe,g4covd0o z yms) q84;a/l 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 l)5b em)ym3a. e 3og7r w4efxh are identical. Which bulb will be the brightgb e)wme3rhe45. fo3a )y l7xmest?


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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 switzc gh8/ ug8xvjmbv/ 8.9m0lck ch and three resistors are connected as shxl0v cv/ u .8c8g9j/8kgbmzmhown. 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 ammeter, a switch and pbn:)11umdp,mo i 3t8osil* cthree resistors are connected as shown. With the p31 do,)*1i s bnptuom8c:mliswitch 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 and three resistors are ;l;lic ::64li njnxp uconnected;; 6c i::ln nljpu4ilx as shown. With 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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