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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 e(k3 vdsr7 zf9e t9)l8-ewcnt kxists 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 inter- 8 dw z9)vkteefstlrcn39(k7ior 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 7 cj/u3h/ pxck4mwlg8, the_________each resistor iw7 4xjk3 ghm/p/ul8ccs 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 causes the filltv*r- w9o eund0 k ry4f2/4 *b8fo8d7 fqdjblament to become white hot, while the larger wires connected to the lightbv/*9y f84rl2r 07o-q4 nd dfbtewuokld f*8jbulb 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 hous,bpadw 4uh+0 qehold lights are being replaced with LEDs. LED is the acronym for wh, 0w4+ dauqbhpich 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 lnt- 1awu pne4had90c n9 6t, yqzh3l2resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must 3ca94n 6te 1llhnutay-hnw 2p z09qd, 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. y*7qty23 4guta6upgkWire II has twice the diameter and twice the length of I. If I has resistance R, IIpgk4u 6tygaq 3u2y* 7t 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 mayeo 1q. vuf8/xo7 /bjkterial but has twice the diameter and half the length of wire X. If wire X has/x .e1j ovk o7uy8f/bq 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 len 4: nscx ugx67ev+jfxc99gg 2ygth 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 resistance +g9f6ux4v2nyscx: x9g cj 7ge 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 brighter nc.wgb6 03qoalight bulb. He decides to modify the filamenc03aqo b. 6wgnt. 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 are made g2w( 3bnnvl4ds,qcnh)g 7wv -of the same material. The length and radius of each resistor7g4vvnls( 3,wnh2d bgw)- cqn 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 w x4hi1/gy ;ceresistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in 1 cewx;/ghy4 iparallel 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 in the accompanying circuit diagram h;l66cz0 j 9qa4lsatcwas internal resistance 10.0 kW and the ammeter has internal resistance 25.0c6 9ctl za4q0j6s;wla 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 three bulbs 1, 474 4x ic1*mc dqivrmf2, and 3 - represecidq17 *i4 4fxrvcm4mnted 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 thea58 bhxy mr h5z-nzqdvy,7 /k/ right. If the current in all three resi/y8mxn/7r dv,zbz5hqy ha k5 -stors 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 simple electr.dun49o lw9 yyic circuit composed of 5 identiclyu 4wdn9y.9 oal 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 concerning the si yl;.a)i7uqyphcty1,,er:a e mple circuit shown where resistors R1, R2 a;yuae)1.e7ph ly,: ,qrtcia ynd 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 cei49r :/0bmud ou(3hw vdfp4bonnected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connect h u 0(dpuofimb:4wr4 /d9ev3bed 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 resistoff6.aj sn2.nn,v a 5t8l xt6rkr in 5 seconds once the circu v6af.l25sfr,xkat8 n. nn6tjit 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 fon v-q8nhk(anw-8m k3tp(k7vnllowing simple circuit have the same resistance, which would dissipate the greatestvnwk3p-k-n (n vm7 8 (nkqah8t 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 cir9h l0l)oyc40cy :ztazcuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V?yalc 00z4czl :t o9h)y


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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 arkau. uu0mby/,e connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, am/u0 .u kbu,yand 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, Rg32c hxw6jz6 p2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 63 j26gxwz cphW. 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 120 volts. What is uv+ru*3wtw (ithe maximum valu +wuwvr (tu*i3e of 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 opetbw*sgq f-dnvtsj 2v0,z, (t6 rate at 120 volts2gfd wv, jst(6bv-nzt qt 0,*s?

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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 resistor that is dbihhq+.elbge41 i if6n /n ehd00y,h4issipating 36 watts of powe4 dl/n bgi 6,hih. hqh0eyn4 +b1ei0fer?

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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 uymemp3 qfy n29;;4izl sed to press clothes is marked "120 volt, 600 watt.” In normal use, the current in it 3ye24yfmin; p9zq;lm 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 a cir)bap:ubwih:o9g m:(/moov f )cuit containing only three identical 6Ω repuwooi/ghovfm)) :b(am::9b sistors?

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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 equivalbg a/h gqo944aqm9c4 gvj5fo95 kp)u zent resistances CANNOT be produced using 499b /)5 hokavzg 9a4q fmqugpjg45ocall 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 connectedsjyz a+5- wy7(bsx ip( together in different configurations. If all three resistors are used in a circuit, how many different values of total resistanz b s(ax 5wj(-yps+y7ice 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 t;u8unmzrp bwu7(g17 gotal power P is dissipated in the circuit. How much total power is dissipated in 8n(g m ;bg17ruuzw7up a circuit if n identical 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 resi c e cqw87ogq/4bw+hh4stors, having resistance R1 and R2, are connected in parallel, the equivalent resistance c 4wq w/+ogbhh8c4eq 7of the combination 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 resi ysp/;jzjx k67stance of 12Ω when operating at 120 volts. What is the mijy/xj; 7 6zspknimum 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 dissipa(3i ppvy n1*tz7f, pa9 dvjy+a-k *j+ gq+txfhting 36 watts of po3yvv*tgtfjkx-ada( pi7pz,+* j + +p1yf hq9nwer?

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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 1rp4qpbrs v 4jugp+2pe*-wtk*h cs)- draws 13 amperes of current when connected to 120 volts. If the price of electricity q14hp-+r4pgs* j*k-trpc2 pu sewv )bis $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 t/x)taupzl4c-p bpr 07l/4 d tcontinuously for 1 year at atu-cp/7x/0zad ptpt l)4 brl4 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 lightbulb results inv dj1cj ;v/.fa)t7vij a power of 24.0 W associated with the bulb. Which d;.v tjci)jfja v7/ 1vone 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 computer ;ep6 mkux,7bzrated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuik p6e7;xzu ,mbt 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 connectea 3,t84; loh n6qdq dfj:gd.dmd to four resistors to form a simple circuit as showod,jtdnm3 :6 d 4qagq hldf;8.n 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 concl7(j ,cr2 *yuxroc(t5vzi 5 vnected to four resistors to form a simple circuit as shown to the right5roz(c c7u(jvt52,cilvx y r*.
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 :b( qt. grr1bu2ubuo .resistors are connectedqug b(oub rtb:.1.r 2u as 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, an ideal ammeter, a switch and three resistoe( (bdj eov9c cf;o9a,rs are connected as shown. With the switch open as shown in thb,vod;a c f(ee9oc(j9e 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 ammetcyuz is1+ 6avjd.:k a*er, a switch and three resistors are connected as shown. With the switchv1iya*6+zkc .:asu jd 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 resifh4ep 7id-fwa/c+ w3 j.mssd)stance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identiajm3f/h fsc.-s)7pidww 4ed+cal 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 showu5go4o vdtyo0.m 9y, un to the right with resi yuvt9 uo4 5d.ym0go,ostances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 idep)in/u yb kn8b9y.z* zvzqd6 gp p+)+nntical resistors connected in a combination series and parallel circuit to a voltage/ py)udqpv9n)zb+znb 8z6ykp+*ign. 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 co, r7/c eatkkv6mbination series and parallel circuit v/k 6ekacr7 t,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. Whicw4( ag y 9mb3)hh1hnp+ sr,gvch bulb will be the brightest?pm1sh(wr gg,h4cb9nvh ya3 +)


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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 th1q 7izi 7c2sbvree resistors are connected as shown. v1i is27zb7c qWith 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, anyc 9p.nyd 3u; isct0.g ideal ammeter, a switch and three resistors are connected as shown. With the switc3 t;ns .yu9d0yc .pgich 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, any g,q+w,2pxte ideal ammeter, a switch and three resistors are connected as shown. Wgy wexq+t,2p,ith 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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