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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 ele-teqm 6/vhu*l ty(r. c2,(c b vvj0ckxctric 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 resis v cb-0ke2v. ctc/j(*6ytq,u v x(hrlmtor?


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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 c z5osxql:el 2vbf0) p1onnected in parallel, the_________each resistor is sv20eq)f:ox b5 lz l1pthe 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 thr gj/9nwpdwg .bt/ay7 +ough the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens bdg. j/gay97w n +wbpt/ecause

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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. LEDru2,kdc4; yht is the acronym for which one of the follo rt,4du2c ;hkywing 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 cross-sectionrv9s n)iu8egu4 o y,k9a*fpx +al area A. It is to * )9, vgxrs4fa8ku+ pouiyn 9ebe 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 maw 3ic y:u(m h3iz9f.ioterial. Wire II has twice the diameter and twiceim .( w yifhcoz339u:i 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 the same material but has,.csjtm srd9o qf(s47 twice the diameter and half the leng 4,oq9.tf7c(smr sjsdth 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 cylindrical resistor has lenguy+zsn8(80: p u mb1bjoull.i th L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistanc ulb n(p1ui0.u8 +lzms o:jby8e 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 wantl7ufmrp qsm t90:q2q*s to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce moq:9*lrm2 f0sqpm qtu7re 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 slkt8 s14bw)f jame material. The length and rad tsk81w4 bfl)jius 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 in thuvj-w0onh7 2n eq.vv juq o +u8wh5gw6-h 9(bre 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 equivalent resistan.(ogjw-7h hw-bh vuq v 5vnu+w re noq0j9u286ce 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 inttpfcn 5i53c87yzjpg) pnr4 . kernal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading i 3 5n)c.nkrgpi57zc tp84yjpfs 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 circuit6wry3d/8ghj i shown to the right. The three bulbs 1, 2, and 3 - representedh8gj/w yir3 d6 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 electrical circuit at the rigyq ont;s7n)/3 ld bs;oht. If the current in all three resis;;7od)/nsny oq tlsb 3tors is equal, 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 r+j;i0 ..ratoq,tlc psimple electric circuit composed of 5 identical light bulbs and t;r+olip , c.tqrj0a. 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 concernss po4 ud,b;o:ing the simple circuit 4u:,o sb ;podsshown where resistors 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 ars*cm h: z9r2t0klkla- e 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 02klha:r *lztms-9 ckthe 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 will p q*g24iw*nezl ass through the identified resistor in 5 seconds once the circuit was nleqz*w4g *2iclosed?


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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 theg25vtf9bby4*.pi ig 8lklhz. / o a0bx resistors in the following simple circuit have the same resistance, which would dissipate tp0hlf/8obbivgi la*t5zxk9bg.2 4y .he 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 c(rt,/sbx, gru ircuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supplyg/ xr,( r,stbu 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 are conne s50; wcc 90ejchfbm dhm)rp3)cted in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance o h3rpw c5ds9ejm0f)cmh)0 bc;f 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 resistors R1, R2 mmd ;ct is2o4f82d uyitbq(5k( tp2q,andR3 are connected in parallel to a battery. Suppoq2o2m ;d q 5mki(t2tb8cy,tfiu p( d4sse 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 watts and 120l0w9s(+sfss v p 8m7ngtu;br* volts. What is the maximum value of the current under these conditions?0tl v( ss gs8*ns b;pwufr79+m

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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 designed to opfq vmhb868m13yd n8 orerate at 120 voltsvfn 1rqh88oby63 mm8d ?

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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 flov q;piz 7o la:7/g -dk9hbhll8ws through a 4 ohm resistor that is dissipating 36 wattsll8/zvb :l7 d7 ;apkoghh-9 iq 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 clothes is marked "120 volt, tys9;i hu*zc6600 watt.” In normal use, the current in it ;c9hti6 yuz* sis

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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 cin9d 8w2dg+u qtefv31 orcuit containing only three identicalwqf12t 8eouvd3n d+g9 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 thef:egk s/opb; m r 2:agc2:ddnfqi883c following equivalent resistances CANNOT be produced using: di d o:28mrbkps f8aggecn2qc 3/:f; 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 vaamf jb8lba.vs:- y2gzd pgfcc25r ,6+lues can be connected together in different configurations. If all three resistors are used 2ga-rjc + m b cagy.fpz,:sbld2 5vf68in 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 re12j3 yjci 0 gll,6uyofsistor is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistoo,ujcf1 l 6g 2iylj03yrs 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, ar d. ooe8jhk36ce connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statemjh c8.ek 3odo6ents 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 resistance ouhz k;ohd0 r9yx4a .ojaw55 0if 12Ω when operating at 120 volts. What is the minimum amount of udaj.5ky9 wo h4hz0a5 xro;0i 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;p+wgj+m ;y)cg xme m; 4 ohm resistor that is dissipating 36 watts ofgxje+mcy;g ;pm;) mw+ 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 *d;9r2p fbbgsto 120 volts. If the price of br; *92fdgpbs 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 mu + r4lw duwwn;uzep(6c/5q h(och would it cost to keep a 100W lightbulb lit continuously for 1 year at (ulwwrq5 /4;z6u(opd+e nwhc 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 through a lighda 9l uf.w3ix1x( c;fhtbulb results in a power of 24.0 W associated with the bulb. Which one o caih1u3.wx;fl 9fd x(f 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 iws 0,alweqc .sip367bw2 ,fmfn a 120 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 the sametiww asq2p.ffbimec7 3,s , 6wl0me?

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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 l)g3vu6 n. kidcircuit as shown to the ri)vu3l dg6.ikn ght.
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 2dsl0r2u9ycczj/:g t a simple circuit as shown to2zgc c yt2uljd/ :0sr9 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 thrfc+ bn.lymv3 )ee resistors are connected a+.fv nb3)yclm s 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,.ij6add c( fd mzv. uec6((dk6 an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in th iac66(m(. e6u z.vcdfdk( djde 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 am8 2iqcjfcr wh4x1i+yv-4z j z *od-q:nmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amp* j:xv1oi z8jqr4w+ynfdqhci2 -4c z-eres.
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 equivalent resis ap*mg nb866pstance? Assume that a6npsg*a8p b6m ll 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 to the ripsjd3e)mz(v2-1hg omght with resistancesm gm)dohj3-(1v 2ezps $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 a6z52cucq*; lcq*r*l r xwkmf1 combination series and*m l l*2 c;c5*w zrc6fqkq1xur parallel 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 conzz 8o x+o;kys6hzqz*5nected in a combination series and parallx;hkqs o8+y z*zz6oz 5el 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 iden y*rx pe6op8sq i4lw 4xaok59:tical. Which bulb op8p*yoxq:x a riw5sle 4k694will 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 battery, an ideal amfr ug.vt5akphg* nm 64-57xi9afd 9rmmeter, a switch and three resistors are connected as shown. 6 xp9aaig drrgmn- 9uh7tv 5f.m 4k*5fWith 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 ammet u1;2 7xo fj8fzf27n kwq)cu f:t8dwlser, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperesltxo fukf2q n d8cww8f7sf 1u)2j;:7z.
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 ort-dz3-6 b ; lc )icly4xgw+uand three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rewdc-llu64i)b zg + r-c;ty3o xads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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