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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 7dbkh+xg*d1e shown, an electric current exists in the metal resistor connected to the battery. Which one of the*e1d+hbd7gx k following choices 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 paralle (i)9hmul5 2;b stymnil, the_________each resis;si)yb2 muli9tn5mh(tor 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 of a lightbulb causx84 1lkh4cfp aes the filament to become white hot, while the largpaxl4fk h184c er 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 housxo;vd t2 6tit7:vt:pd oa2pi3fzhg4 /ehold lights are being replaced with LEDs. LED is the acronym for which o i/df g2hi3otzp:v4a:x7t 6tptv2o; dne 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 graludcc ;9( d3mbphite resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it firdul;dcmc3 (b 9st 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. Wire 7ai0 a gir3p-ihg4-ooII has twice the diameter and twice the len ga04r a7g ioio--hp3igth 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 made0wo)h7wcoopb o0 ya v47f1s+v jdn 1*m of the same material but has twice the diameter and half the length of wireofmv1o7ybp) 0 s*+o no 10ww4a hvjdc7 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 luwr 8b:a:;v) zk;nwn nength L and radius r. This piece of material is then drawn so that it is a cylinder with new lew :b8wanvnn)zr;;:u k ngth 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 wf,xt(k0 lt.z vvh )pyb):5db 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 mtb) hvzxf bkl 0t.dy v:)p5(,wore 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 resy7hs i) 0sf,ozp9q9(rnw /cup istors are made of the same material. The length and )i 7n9 f wh9qu r(sp,sy0zo/pcradius 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 mx)rd.8 ,zz(:,hcazav 2hyzj resistance R, are connected to a battery in the following way: “Two resistors are connected in s , z)rh(hzzc ,:x8a.jmyva2dzeries. 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 ia7)3ceyrcm: rjs75: hz mvra4 jjnr 0* +bgf9yn the accompanying circuit diagram has internal resistance 10.0 kW and the j ca5m047:9r r:ya*v)e 3fzmybgrcrs7hjj+nammeter 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 circuit shown to the right. The o.oz rkwa6g f5n7g(o4ug4(gt three bulbs 1, 2, and 3 - represented as resistors in the oz5kg7 g4a(uoof 6t.( gng4rw 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 cix*a(me ct,xm2v kcrqmlhk ykq976 /;jl- 3k 1orcuit at the right. If the current in all three resistors is equal, which of the folloel*k,6 21ah(x7-krk; ommcvqj/ qml3yk9tcx wing 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 circuig0b:-tvp n+o7j+ ll2b i0k rvx40oiwg t composed of 5 idvxlj 0lg:br7igk02-pb ot0 w+n+ov4 ientical 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 ctaf/: zsusn4k0(ihp. oncerning the simple circuit show h .pk:s0t4zsfui(an/ n 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 are c 4f aqnh34gm +df apg/:*hy7mfonnected in series to a battery. Bulb X is brighter than bulb Y. Assume all cqa *gp4hf g3:/ +fdha 74mnfmyircuit 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 coogju-o62 yuk5+n* n; btggv:dulombs will pass through the identified resistor in 5 ng*6gk g2nj:bvu ; dy+t-oou 5seconds once the 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 resistors in the following simple /w 82ehm2hitku oca,0 circuit have the same resistance, which would dissipate kue0how,at / 2c82mhi 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, the current throug tini*e1+ig 3dh the 6.0 Ω resistor g3 ineii +d1*tis 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 are connected in seriei;p(rdscebljerx5(+ ds:1 0 sz w+ /rps 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 powe/rlsp1rdec :;r5zssji+ eb(pw(+ d 0 xr. 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 connecz+ iq/wjj) ,;mqde w-sted in parallel to a batter)j -w i ,sq+mqwj;e/dzy. 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 watts and 120gi;ui6j w3 , wgpm74;1hjvdrpdmz )2ti3 ii1o volts. What is the maximum value of the d27jwgrhwpi)z3 ;omj43 16,dv1tiimup ;i gi current 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 r:g71 cesrb j,besistance of a 60 watt lightbulb designed to operate at 120 :jc esr71 b,gbvolts?

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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 resi; u+p (aa e3,sla*2hqp qyxbhl33b9b bstor that is dissipating 36 watts of ,yq2a 3e3b9ah3 pp(a+bs ;*xb lq hbulpower?

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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 markecj: r 0tp4dh/1 z-b8asx w k1a,ms:fagtjir77d "120 volt, 600 watt.” In norm7j1ghp j amrw-8k/a1 z7rsxtcbi 4 ta,:f:s0dal 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 following resistances cye mah -cl-0vix3k;; vould NOT be produced by a circuit containing only three identical 6Ω0mxy kcva;e-i;vl - 3h 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 following bg8rkl13tck,8 vedh+c 5gqa 3 equivalent resistances CAN+gl5cv,ce8g1 kdr ta3bqk3 8hNOT be produced 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 differe2 13il c hf3be.g./pwhjvm. zvnt values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can vwe.zh . jh.g33ibm1lf /cp2v 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 res;/uxf0.s; my zbjc-b.tt4scm istor 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 0.szmmbc;tfj-y4.; /x cbutsidentical 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 resistanxz:o :lmxv x(e-fo1zo;b7s8bce R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which o xo:zbl(soe;: -8vom b1xfz7 xf 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 +) 4b 5suzxtkhftd3c m*y-tp: it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it w:3 thutz5t+s k4x)*bf-dcpymould 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 that is pajbz)k98zm 4zf9 a;g g(k6kkdissipating 36 watts of pok4 ka9mkzz8pbg afg ()69 zjk;wer?

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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 current1r(m 3h0y tvzz when connected to 120 volts. If the prihz1m0 3vtzr (yce 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 100W lightbulb rk -ozjw8o8:*ckej /n75kk mplit continuously for 1 year at a rate *kke:jmr nw-o5c8kkjop z8 7 /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 lightbulb results in a powe 8adbir8 uch z::mk5x7r of 24.0 W associated with th5xzi rm8d:: u7cabhk8e 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 comprk;czv0.6l2m yi) rmfws b*x +uter rated at 500 watts in a 120 V circuit. If all computers are plugge;wsrrmbl2c+ m z) xkyf6*vi. 0d 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 connectedgmq- wm7pwbf-n+ uw8) to four resistors to form a simple circuit as shown to thm-n wbq-7g +)muwp f8we 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 simpc 59)wb p-l 0.yt i)ozvgi2-j*mhjbn xle circuit as shown to the righzinjw my-o)b0.tbjx c-2 g *l5iph)v9t.
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 conr fo)5mll(.ejsl *ih9 a,7vownected as shownf9oa,h o.mv5*7) lsllrwej i(. 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 resistowbb0f79cq,d mrs are connected as shown.m9bwbf cd,7 q0 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, a1: 2,isi1nypvum; jzs switch and three resistors are connected as shown. With the swpv :i 1j u1;yszin,2smitch 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 the equivalent resistanctm87kn(dg /et,)hbtr e? Assume that all wires are ideal, the battery has no internal resistance, and all three rtb m rt/)d(7tn,hk8 geesistors 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 wit,92hsogh 4hub:n dh df6 ,c4wqh resistcu:s 6 4w og2qn,d4hbh,hdf9hances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 shoerd pv04f 2s0jws five identical resistors connected in a combination series ae rpj 02vsf0d4nd 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 bsgvrx i )yru(-yyey5/k,,)gq elow shows five identical resistors connected in a combination series anyyyg)gr)ru /e,iq( ,vy-k5 sxd 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, allgexm2 zqo67k4963kr f8h5oe /wwf ms e of the bulbs are identical. Which bulb will b6x wek 3rk4f7eh8/fsw 296zmegq m5ooe 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 batterey/zgoj24.k+rxmqq:* :i g+chm7b n ky, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as showozk7gm 2/e4b *jy+i h qkqc:.xrnm+g:n 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, bic obgg:bc9kc(t0vp,r.f ol 3t6ep2 1r- zb0a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.03gr6vf0-,1zgo ptbb(rlibk2p 9ccc b:o0.et 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 j:x8+xyo;zd,fj f y* wresistors are connected as shown. With the switch opzj;xj :8+fw*oyd, xy fen 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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