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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 ,ke bgnz1e yt 3 -u3bqul-2io0xck,+lshown, an 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 th-,+ut eibnkcqkbolz 1l02 -u3,gex3y e 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 connecte ne 0 cua89t,4;kzljxhd in parallel, the_________each resisza,n0 e4l8t ;xh9u ckjtor 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 wirp v1 5q i:x,a8ai4o80d cijtdqe of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becau c 4jq 0a8 q1ivdp,5xioid:8tase

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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 9vr;hv.w76ft*a bky qg f 7ya+lights are being replaced with LEDs. LED is the acron.gk rt;*wa9bay vy 7vqfhf+76ym 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 lengt- 0f a4m:s;u-x gmvbmph L and cross-sectional area A. It 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 resib;xgfm:ms m pu0- -a4vstivity 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 m:nz2b j6*bum:) z o375 nrhvxt oqzroh;e9(iaade of the same material. Wire II has twice the diam7ztz z(oqm : :uon9 a;rb5*n)v2ixj6bhhro e3eter and twice 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 twice the diamet s:2gb,sq cw9bf1kx b+er and half the length of wire X. If wire X has a resistance of R then wire+9bw 1,2sk:qg cbx sbf 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 resis tb,w 1 skzen qxj)ph(pz31um/fy59 (xtor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. Wf9xet1 m/y,qw3k)p 1b(h ujzx 5zpn(shat 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 Thom38vqs.l t9bvz5 a/esk as Edison wants to make a brighter light bulb. He decides to modify the filament. How should the filamksv/ 5lz .a sqv9bt3e8ent 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 mlj, mi4/kdt( bade of the same material. The length and 4id/k b,lj m(tradius 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 batter1g k8kaxdlau0: e1 j/oy 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 connected in series to a fourth resi/g0aax1u o8 :edjkl1k stor.” 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 circuae-s hpa-6+n jfox,g8it diagram has internal resistance 10.0 kW and the amm ajap,8o+f x esg-h6n-eter 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 shuy hna xxilbv( mo:3;zx8* w(gvb7o)-w:xvj0own to the right. The three bulbs 1, 2, and 3 - represented as resistorxg*w0v( b-ixbh:l ozyu378o n;mxv: wv)x aj( s 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 right. If the curucid63g6r)1n , ecgfcrent in all three resistors is equal, which of thd,3 grfe nc6gc6u)c i1e 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 compos v *nubqo2,pe1ed of 5 identical light bulbs and 2 flas n1*ueqo vb2,phlight 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 k0yat;z 6 0 5 1lv5hk;opcevyffollowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistancv l 1ty0h zpk55a0o vy;e6c;fkes?


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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.29: Two lightbulbr5s.x:ee61nd dohb3;ss ;i xr s 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 eaxneh5sr6s x.b :r;de1 ; os3dich 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 coulombs will pass through g7qwd,):zlp rni6.kf6ke .bg the identified resistor in 5 seconds f6l:ken wk, )zg.7.qi g6brdp 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 followi+bezx )gm-tro9 ws u*bp:q/n4-scz 1sng simple circuit have the same resistance, whic+cbpe9 z 4x -om1ss:n w)zsbgqru-t/*h 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 diagram,n l2fh;7cy2wi the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V? hlyf2ci; n72 w


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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, ansaxag k3;8d 41a qgm-c:.mq djd 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 of8axckaa1gds3 jd mg;4q .q:m - 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 arpob; v5e-i+vae connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and Rvb5iv;e +pa -o3 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 72xmc,0bi na5v l -zzbwatts and 120 volts. What is the maximum value ofbnzx2b5-,7 i0mz aclv the 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 resistance of a 60 watt lightbulb designed to operate s57* 3n,julb )hxuf zvat 120 voltsf3xvub u7 5,nhlsj*z )?

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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 43rej p1rf 0pb,1ocwb, ohm resistor that is dissipating 36 watts ofpbco1j fb1r,30 r, pew 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 clot u/ gfkn ,amk7kl6p1u8hes is marked "120 volt, 600 watt.” In normal use, the current ian1uk, k8p/m6fkl 7ug n 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 resistaaf3n/ur td :9fnces could NOT be produced by a circuit contaftauf :n3r9/ dining 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 givenp 4pp)kq hci(86rr :gv three 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using ar) p4:k crp6(ih8qpgvll 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 connecsod6( e (iww6yons ,1qted together in different configurations. If all three resistors are us(ns,wyq (w1eo6s6d oied 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 battery, a total power 7f o:fj0/ar uh jpxtqy79(sy-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 battery? Assumeu st ( :-p f7aqhy7xrj09jf/yo 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,j,1a,jluyq r,w1 .xy y having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which x11yrqy,u,y.aj jw l,of 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 it has a resistance of 12Ω when opergddi3,rc6 ki8 ating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water k c3drig68,i dfrom $15^{\circ}C$ 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 thr z wg9dxu 7q9wj-oage88j4 j mzwh0d +ne:56hxough a 4 ohm resistor that is dissipating 36 watt 7:w6n xdh0wqu8 zg99z+eda -w jjm4e5xj8ohgs of 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 dr1acb 4(h4eo3p yfu 3bs a5jb( -ogr5pvp .ok9maws 13 amperes of current when connected to 120 volts. If the price of elekspm5. r54j( ue yb-ofbao43bo c9phvgp(a31 ctricity 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 woy p;ld:dzs7g lait d (z3k5r 1,93juuvuld it cost to keep a 100W lightbulb lit continuously for 1 y9(:3pk 7r ; id315atgljud luzy,zdvsear 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 through a lightbun.,5 9jpq9ivd ucey1xlb results in a power of 24.0 W associa.e 9pud5n i19,c yxvjqted with the 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 sixfx*acm: ,b(a bhy:- wnsz4wg rc7zb0; owns a computer rated at 500 watts in a 120 V circuit. Ifa0s(cg*hwf-az4cymb ; nb::zbx w7r, 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 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 circuitmdi pbbh/.o1abrn0; 5u)vd 5c as sho;b uidovhbnbc .m5rp )/da501wn 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 connected to four resistors to fobeh x d6n.ubv/21:por 4) 4b3ufyeka orm a simple circuit as shown to the right.) rx3 phbb.fe6u1nv:/bake4d yoou4 2
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 ammk(av./qylk(6ky)tf a eter, a switch and three resistors are connected as shown. With the switch open as shown in the diy. aq(t)f6 kvak /kl(yagram 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 ar jcq-m65pq y1 *v-aql/ j5kblee connected as shown. With the switch open as shown in the diagram the ammetecqy kjj/ p-15bm5-qa*qllev6 r 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 batter*b6rk a kcu4 q8a0rbh2f0 )kzr.e)jn ky, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampeacrk0n 0*e aj)4r.28qf)buk kk 6b zhrres.
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 84xpeqryz1jox3m4 z 5n. 29 sngy k4prresistance? Assume that all wires are ideal, the battery has no je5.pz91nx r82 r34zgyn4 4xp qkmoy sinternal 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 right w7 xmfw ych9 bx:yjd17som6m+ -ith resistancexsoj+yy m6w hd71mm9bfx: c-7s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 af 6 u /p-s/bqj-taf.n fvg.fn9 combination seriep.gt-/jfq-vfnb9s6/u.a f nf s and 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 connected in a c:gzh x-qgy1 :combination series and parallel circuit togy::x1cqz h- g 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;yofaer7k, 08u0as pc8zce3 3bfq/y are identical. Which bulb will be 3ycbuka 8q ape fs 07fz3l/8yroe0;,c 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 ammeter, a switch and three resis louff8ivfv0u+ y 6.p2tors are connected as shown. With the switch openuufi vvfl .op602f8 +y 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 three resi6) e)aw w3dlltstors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amper 6t al)wdw)l3ees.
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 a,6fejs8c i5fw mmeter, a switch and three resistors are connected as shown. With the switch open as shown in th ,sjwc586fi fee diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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