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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 electr91* mf0hrklc gic 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 inte0*grlh c mf9k1rior 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 parallel, the_________each yq/ en)8gmu*i resistor is the s )e*/iunqymg8 ame.

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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 t7 w)pnt ddwcj0s2 -,egct8sr; uvvf )3hin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightrwv etjf)uw s3)ns07-tc gdc 2 dpv,;8bulb 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 household lights are being replaced wtn qx,-pe+i szof03 m-ith LEDs. LED is the acronym for which one of the following cnq m+ tpi,f3s e-0zxo-hoices?

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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- :n: p1ad,rqddsectional 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 resistivpd :qr n1d:a,dity 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 II has tw0u nsfv0u;bikoaql6 5)m61 4r t3gqy nice the diameter and twice the length of I. If I hasu53omynagtilqbf r0u k;n61q4 v 0s)6 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 mn5ogy5c- s5l eaterial but has twice the diameter and half the length o - 5yl55cesongf 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 resistor37ps n:idk sxn q(, zojhsp394 has length L and radius r. This piece of material is then drawn so that it is (p,xsz3s4p93j h qnskio n:7da 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 yf+pia yi8n.fp,0h88l z f+ uawants to make a brighter light bulb. He decides to modify ta,n ipayl8+f 8f8yfp+.0h uzihe filament. How should 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 arnmdj rk(jf(i2 ;k68j2o e kp1ue made of the same material. The length and radius(ed 2 mkjpir2681f jj ukk(n;o 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 con(4lx hs tl qs36usrtril;k:zuq;f5* 3nected to a battery 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 resistor.” What is the eq3sl trft5xu6 l4 quss;:;kz 3(hril* quivalent 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 diay;+,vopcnsr 6guc73 z gram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. 7,; zp3cc vns6yrog u+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 to3p3 r h+k(x5lis (xjvd the right. The three bulbs 1, 2, and 3 - represented as re(+(i x5skdhrv j3xpl3sistors 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 )p oz j dgu.8zja;(+yuelectrical circuit at the right. If the current in all three resistors is equal, which of the following statements mus( ;d+gjy) upjazu8z.ot 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 circuitzv 5smh66 oi;n *gtanb3/wls ) composed of 5 identical lig t6ivb 5w a6ssnzl*h mn);g3o/ht 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 concerning thelp wp4jbeb b26*d6rn4twb*- u simple circuit shown where resistors R1, R2 and R3 are have equal resistancbtp6bw2dju nl b*p6bwe -r4* 4es?


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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 areayfssw l270f / connected in series to a battery. Bulb X is brighter than bulb Y. Assume allf wfal0yss 7/2 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 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 th:hynw2 gdw z2*e identified resistor in 5 seconds once the circuit was close:d2*nh 2wg yzwd?


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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 ci. wexndc6wmasq uzlq+a/b3,n6bh:;1 rcuit have the same resistance, which woule z; whqbw3dn+bqanm,lcu:66 x.a s1/d 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, the current through the 6.0 Ω reb 2ztmhgn8r0n+y(/ q csistor is 1.0 A. Whrcqnzb8 hyt g+(/mn20at 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 resistoe1bkec( kj g,4rs R1, R2, and R3 are connected in series to a battery. Suppose R1 carries akjk(c, eg1 4be current of 2.0 A, R2 has a resistance of 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 andR3 are connected in parallel to a bah.ddt0,r1 z6) ,br emupxu jh.ttery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in,dh j.z0,pu6) mr1euxt hb.dr 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 iswf j9wv-tszj)v0 v: op f:4j+g rated 1200 watts and 120 volts. What is the maximum value of the current under thesetp9ovzj:+sjv :0wf4)wvj -g f 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 resisjz/ rst64 )wvctance of a 60 watt lightbulb designed to operate at 120 vo4/ts z vr)wjc6lts?

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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 f5g wkye 8e d l1ec.wjp+w*g7.flows through a 4 ohm resistor that is dissipating 36 watts of +jeeewl w.wdcf1ky8 *.5 g7g ppower?

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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, 600 watt.”+:ny( c-ifqt nwx.0bb In normal use, the curren0iwtbqb.y n (nx:f+-ct 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 could NOT be produced by angro 4n k1)a:t uya2:u circuit containing only nr 2uagk)n4tuo y::a1 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 given three 1.0 Ω resistors. + fuo ,dy2cbbe0yn*5fWhich of the following equivalent resistances CANNOT be produced using abfcfbed2ny yo5 0 ,+u*ll 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 connected together in diffwd iwm. 0lv55c33e ffnerent configurations. If all three resistors are used in a circuit, how many different vme.fi503 l3fvdwn c5walues 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 batti f .v3w9caa)q1ht3zfery, 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 the same battery? Assume the internal resistancwaz)f 31i 93qfhca.t ve 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 resistorsiu:4zo j 2*aoy, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combinat* :oy ajzuo42iion is 5Ω . Which 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 operatebfr-me65 3lb ;r/lwj ing at 120 volts. What is the minimum amount ob er;3w- lemlf jr/65bf 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 t 9 caq63:(z xyqleqf1khrough a 4 ohm resistor that is dissipating 36 watts of power?9l1zkcef q3yqaq:(6x

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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 dt ae5j9-eddqf:hm 5; sos k1hwk:ea26raws 13 amperes of current when connected to 120 volts. If the pricjteak2s w1h5dd;eka:qo -f se9: 5 hm6e 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 lightxca0g he3s-vq.m8eexn;*zjfn8 t p3 0bulb lit continuously for 1 year at a rate of p;x8t3xm*n 3s.nevhc0 z8f0jeqag-e$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 ligz/vs 2n uf:jf+htbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of tj +f/:zsf vu2nhe 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 )s*wkm o 4: qpzok(pc9computer 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 the maximum number of thz cokk)s p(mo4wp:9 *qe 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 cd rv3*n c*h*qaonnected to four resistors to form a simple circuit as shown to the righh3**ar*dnvq ct.
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 fourkvtln n)qp+x r l 34i2kz+d23p resistors to form a simple circuit p ln3k ivdz3+pr4 2nlqxkt +2)as shown 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, a5gcmh6jyw4 ;x k1 x+zh switch and three resistors are connected as shown. With the switch open asj+ zwhk;hx61 4myx g5c 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 conbg7qajrsj-;6 7:v o a ppc(zw/nected as shown. With the switch open as shown in the diagram:s-zrab 7q/6; 7vj wpojap(c g 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 switch and three resiyx gh0h77;/u 9 jn4xkawld*r wstors are connected as shown. With the switch open as shown in the dkd*r9w4 0ua;wh lh xg j/7n7yxiagram 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 shownq)++/ fp9 bjnv: ly6xvyk4 ndv to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistaxkyl)v/4+nb9 v :fd yvnqp+ j6nce 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 resistex(z7u(rf*: hzfdtx 2ance of the circuit shown to the right with resi:*f(z(fhr deut z7x2xstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 beln .wb2d6epe a.ow shows five identical resistors connected in a combination series and parallel circuit to adw.p6en.a2e b 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 cdzoak,qa,m7 9 onnected in a combination series and parallqz o7,9,kmada el 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 bgo c6vf -g2kb)hafzh )s 0)rz;ulbs are identical. Which bulb will be the bric2)hfs;z) ga0 okgz bf-vrh6)ghtest?


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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, e 3 kair0jayj bz,:c:2an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the z2ji0:,k rby3:ca aejammeter 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 ideu)25my /ukgw )f k2eyfal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the dwugykmy)e)u/2 2 ff5kiagram 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 ;f rp-ivrecl;y; i)s-7go cz.connected as shy orir7ei;.)cc-szv; l gp f-;own. 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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    总分:50分 及格:30分 时间:不限时
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