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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 electric current 9y(v )y du*fexexists 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 dire*u()yyxd9 ef vction 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 paral3),z fzqsxq(ip*un(ylel, the_________each resistor is the f(n, z(u*s3ix p )yqzqsame.

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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 l,4ko t7nf+sxa ,b:po eightbulb causes the filament to become white hot, while the larger wires co+, xf:s ak7et poo4bn,nnected 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 household lights are being rep ew23/ yuyrlukv 6lz,5laced with LEDs. LED is the acronym for which one of the followvw5/yue6zrk y ,3 lu2ling 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 le0(2mtinuy :t cngth L and cross-sectional area A. It is to be placed into a cir:2(t tm0uynic cuit, 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. Wiwynwzdkr) byi/q rl46r)ku 56y90h8m re II has twice the diameter and twice the lengyqrmr6rkdy 64uyz9 ) /)w5l80kwi bh nth 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 twicgmxg b2p /13u9bddb- eqb 1w-le the diameter and half the length of wire X. If wire X has a resi e1-gpdwg2b m-3 xl1bb9q/bd ustance 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 length L and radius r. This piece of materic4g ;;.aqor jnal is then drawn so that it is a cylinder with new length 2L. What happens to the n4;;qra cogj. 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 Edisu*-2chlaifd yy8t/ 3 hon wants 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 d3tihu- /2ayy*8fh cllightbulb 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 mater3bnq vty hs9t4bh/l +4ial. The length and h/3 4y+ s4vltqt9hbbnradius 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 conneca8f1gw, qfs6,hv h f2k;u2zpated 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 a2wf,zv8a2u6; hqf,ha g1kpfs 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 accomsd1m9no3s og c*ty 8/ipanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter rent9gi1/yod m8s*oc3 sading 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. Thelj ly z3qy+8:(by8+pylx kb3g three bulbs 1, 2, and 3 - represented as resijlyl3 x kb3b + y(qgzy+:p8y8lstors 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 r jarxde*d363d2-hckcircuit at the right. If the current in all three resistors is equal, which of the following statements must be true- rec6jk3 h2*arxd 3dd?


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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 represenythi2+ (l ;,rqhhdnwikx0r ,8ts a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells.0q,ikrl,h82ht(n xd yiw;+hr 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 sx;6qcfi -lg t+tatements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal +fxl6 t cq;i-gresistances?


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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 connected in series to a battery. Bulb X iyi(vii7r0p u4s brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are conn07yi 4vpri ui(ected 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 the identified resistor2 m5d7xr .fxl0mi j;)tms+cuc in 5 seconds once the circuit was cmdx t xjm0ri f2+;u csl5.mc)7losed?


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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 a3,ypbh g(r1pfollowing simple circuit have the same resistance, which would dissiab 1ph3,p(rgypate 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 *qa xax9jn,2+um z*u jl6d3hy resisj+dqx**yjuua23, m a 6nl z9hxtor is 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, an)rz,cm6(7ofu+lhcxpe sid1 kg / i p/6d R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has 76( u zc/c i1gre pmp+sdif)lxo/k6 ,ha 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 lrf *n02zr5o x8ioxxiqa34o8 R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3q48o *nxo3ox0 frixal8 2rzi5 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 coif*(fsu lg7f9 yl is rated 1200 watts and 120 volts. What is the maximum value of the current undys (f*97u flfger 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 605wj-se. x ;cbe watt lightbulb designed to operate at 120 vo5 wex. s;-cejblts?

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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 throuhow3ub uo- *njm:b-m)w 0aem6gh a 4 ohm resistor that is dissipating 36 waeu-6-*w oommb)a:h0 nw ub j3mtts 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 iev5 kgci9l)wsp *7ol;s marked "120 volt, 600 watt.” In normal use, the c*l) vow9p ke5i;lcgs 7urrent 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 couldb cdov m 0hqc2n9g0q kgt. .m7w-ew h8d19tg7y NOT be produced by a circuit containing only three identical 6Ω eh7nbg9c-.gqtm1y07hmo802 c tqg. vdk dw9wresistors?

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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 equivalb5/5 aqmca*zt gi*i3u ent resistances CANNOT be produced using all threia3 b5g i*tac/ u*m5qze 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 i/l rqe9r)xpm2ho,h7 76f itg be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total res )7lgioexm,p 2rt fh7/ 96hrqiistance 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 p s.i2p4 d6gb(r3qr2e/gpga duower P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series usidig/ es p34q(urpd2ba2g6 r.g ng 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 resistors0dvjt hc-q )5+p,jqzw , having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements j z50qp,)h -ctqwv+ jdabout 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 1vpi 0b*btk m74pis3y12Ω when operating at 120 volts. What isp v73p0 ti*bi4y 1mbks 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 flows through a 4 ohm resistor that is d7qk.yuk (2zu goi q80dissipating 36 watts (z kdg.q0qkui yuo278of 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 x*1 gthqz m,dpsxfkb, 4no;6 5connected to 120 volts. If the price of electricity xx6tzhso,md gk154f *n,pb q ;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 lit contin1;h /t f,dulqn /yxy6muously for 1 year at a ray /ulx,1 /m h6ntfq;dyte 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 resultsu; m; xq77*elbqmtdo; in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of tut;7del ;; moq7x* bqmhe 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 aci4+wj ru(k8wp osswby-; vy93r, zb. family of six owns a computer rated at 500 watts in a 120 V circuit. If all compu3b+k9ob-uwvwy 8y(s4rpzwj;, . is rcters 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 simpp )ogefy3 /fcea+ rmj-0e3tw+le circuit as shf /) c3pgtfe-+ew0om3y j e+raown 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 form a simpln4y1wn0bdyk w* /gx5fcs kb 95e circuit as shown to the 5c 1yy0 w*xdf9wsk nbng5kb/4right.
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 connc z6rwviyl8r.*:, (drjxt s r:ected as shown. With the switch open as shown inj,i ld8twr*c: ryx.rs6(:v zr 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 ana;hbm u 1f3+hid three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. h;1 uhiamf3+b
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, s3dq3q p, ;tk wuv/6fcwhq*j4 an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in t hc*q3qf4 jqp,ud;k6vw ws/3the 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 eqk, my:yc)va54 gy.do1nam-fa uivalent resistance? Assume that all wires are ideal, the battery has no dy-fy.a m1gak,yoc 5v)4nm: ainternal 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 resistrrnjgd x;o +ne0:*nm0gf6oh (ance of the circuit shown to the right with resistan rh;6 md*g+xoojnr0:(eg0fn nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 cov+uknq.z q5 z k(xqu *6wf8j/lnnected in a combination series an6kq8qnx qzjlwuuf 5zv.+( /k *d 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 s 9zjj:b8wwoo9 hows five identical resistors connected in a combination series and p99jz w woj:8obarallel 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 identical. i-lc1 u( iddq8Which bulb will be thelu(dc1 d8iqi- 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, s6lc3bb40k hwb4f 34czy.ccuan ideal ammeter, a switch and three resistors are connected as shown. With thec3c4wfkb0c6b cz 4u43sl y. bh 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 three resistorqfqu n6 es59a- a0jiv;s are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0eaq9un0q-vjs a;if 65 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 ar0(hmctl hs ns71lp35 me connected as shown. With the switch70h mlm(1sl5h 3ctnsp 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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