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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 ckxydqkb 7 :bqy 2oo*,/urrent exists in the metal resistor connected to the battery. Which one of the following choices be,*b2/oobqy dx kk :7yqst 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 parallel, the_________e1oqubm 5)- ndaach resistor ib)uoq n1 5d-ams 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 fi9.ixzf ia4r;mlament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain mr4; xmfz9i i.auch 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 with LEDs. LEDttncx/.i (* 8zucn b;c is the acronym for wh*x(nz/u;cn t8.ib t ccich 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 resiste nf jd2loz vx,zz;o;ur 2rc/88*+z gcor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in half so that tho2*ugzcz8/c+lrz ,d ; e 28nfj;zvrxoe 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 II has twicvch )bv7p(tyj t6/7bte the diameter and twice the length of I. If I has resistv(c bt/htvy)7b7p t6jance 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 dilu vbop *m3)x,j5rc 3uameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resiur,j)5 vc o3p*bxmul 3stance 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 resistor9jspg /nz/4nst apui3 5ht:* r has length L and radius r. This piece of material is then drawn sg3*p9snt5:zp haj n/4 u/irst o that it is a 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 E) wnrj/ x4yfm)ubg,u *dison 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 lightbulb produce more light at a given vowbru mn x4yg,/f*)j)u ltage?


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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 material. The leny)dmr ri/ pu7q3i +2fsgth and radius of each resistor 3y7if2 +dsrp u/m)q riis:
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 bat*v0 * ajrfx9( 8:1ql.ntord cz4 uukpvtery 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 tou10cvznr qf4 9d:kau8x pr.(l *vt j*o 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 has internal reqn3d(hoq( a(ssistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading(q o(q3ashn(d 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.jlbz 6l l6 s5i5x)o6x mls-cut7wi,x, 2, and 3 - represented as resistomsiz6xx. u,llioxb6cl 7js w -5 6)5tlrs 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 currrem f i9b-ki dwni: b7g99mv41ent in all three resistors is equal, which of the following statements must be tgi9nk49wbe9r:-d 1m7v bfimirue?


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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 composed of 5 7 6 z1p cnu/ o*-vosq6opzrd3hidentical lighr7qos3zo 6ponzuv1*-pd/h c6t 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 followi2 z sp*dud;dinrzr( ;5ng statements is NOT true concerning the simple circuit shown where resistors R1, R2 ands n;ur*zp2dzi5rd;(d 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 cocf +9.*d1utxonywpq v qg5ov7/x7(a rnnected in series to a battery. Bulb X is brighter than bulb 7odvxof15 u nx. g ry7wt+(/*qq9apvcY. Assume all 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 the identified resistor in j+0ie xdk02):juzii t5 seconds once the iei2 x uj tj:i)+0kz0dcircuit 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 circuit have the 1wq z27)esbcn same resistance, which would dissip)bswc q1z27ne ate 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 Ωwwd/)abm w,ih 4 u2q) gsxm;8y*noqe/ resistor is 1.0 A. What is the power supply voltage V/,2uoqwag;hiyw8*m )xmeq/b wn d4s)?


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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 series to f3 5 +;hp(hjlntnxq;ya battery. Suppose R1 carries a current of 2.0 A, R2 has a resistnpqfh(tyh j3l;5;x +n ance 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 paraw(c*hmb l*f9h3 zoh +pllel to a batteh(bw3 + cmoh9 zf*phl*ry. 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 120 voljwl-1u ki+hjp4 nm +u*ts. What is the maximum value of the current under these condiu-4pknjh + i*l+jw m1utions?

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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 lightbuke t-hvs8 +ld1sw ku94lb designed to operate at 120 +s 8sdlvh9kuw- t14ke volts?

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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 tha,vnt. b2lec 3t9o;xbgt is dissipating 36 watts of powevb t no;bt3c,l2xeg9 .r?

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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. g4dkjpw9hwkw/ r t96 used to press clothes is marked "120 volt, 600 watt.” In normal j6rt.hwpgdw949 / kkwuse, 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 could NOT be produced by a co;y3(tny)sfze f.b 1x ircuit containing only 3fes(ybzo;xn.fy ) 1t 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 resist1.qr9 zfpl9buqijm80 ors. Which of the following equivalent resistances CANNOfqlbup9 .m9z1 ij r0q8T 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 different values can be connected togetq*qd4 /c6ayy yher in different configurations. If all qy6qd4/cya * ythree resistors are used 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 isn l4l(71nx5me r * jfqs sr7zctrkf716 connected to a battery, 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 batts75c71t sffln7je1rq6r( 4zmnk*lxr ery? 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 resistance R1 aks;k,8 j.trb9kmziiv ;o 7mm( nd R2, are connected in parallel, the equivalent resistance of the combinams ibr89k7,k.im(kz; mo j;vttion 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 oz s,bs8lqo* q/f 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of wat,qqlo 8bzs *s/er 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 dissipating 36r0l f/ ie :wp h/11bsqxklf,8c watts off,8w:f1s/i1 clk rq b/xpelh0 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 draws9bia2* t+vxf9 q t1ldv .z2dne 13 amperes of current when connected to 120 volts. If ianx1dfzl99.v2eb ttvqd *2+ the price 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 li,lu *a -t)ehs3-muy ipt continuously for 1 yea)3 upy-miluta s*-,ehr 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 lightba.:ox qxp1 h1vulb results in a power of 24.0 W hv1xa qoxp1:. associated 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 six owns a computer rated at 500 watt5jgh8(o twu m;wq,9d 6je jrx4s 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 the computers can be ,ww9je5 rqx4uh(t m6d g8jo;joperating 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 fourb.q s:shx lh69 resistors to form a simple circuit as shown to6lhs: h9sxbq . 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 ffdadzy/.iiow -ot240 orm a simple circuit as shown tad0o.dfto4w zyi 2/i-o 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, a switch and three resistorsvfsc9b4 f*j 8;5dok t*d v;prs are connected as s4dv*;osjt;f5 * sdvfr kp 9cb8hown. 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 an+ 9x7uk :x(*ijp4gc tu4vu4qh esf s,bd three resistors are connected as sfxe4k 4iuxsuuh:* t vc+q jps4(b97 ,ghown. 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, a switch and three resistors are cfhz a*17rlmhfz70iw wwqgj(7zb 93(aonnected as shown. With the switch open w9jw*hzz(i7f7hq m0 (arg fw31zba 7l 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 th+4 4levq1stir ,ox k5me right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance,451qxoiks 4mvr+l ,e t 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 circui o 88kt lnul3 5cojjymh6n4-w-t shown to the right with resistances kj34ul n-8l hcw 5j6t-onyom8 $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 idv9 a/fxj ifw36*gccy( entical resistors connected in a combinatioc6f*(i v ya9xjgf3 cw/n series 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 c5mc *z on2+goaombination series and parallel circuit to a volt2gmon*o +c5zaage 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 ident4dy4 4ruk. j-wmr glz)gr /4l;ftvk4vical. Which bulb willlwvl4r; gk/rd 4 mzj44 yg-fu4.)r ktv be 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 id(tld)nlw()p ieal ammeter, a switch and three resistors are connected as shown. With (tip)dlln w) (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, an ideal a9)uc 8;7j xtkt1o jcbbmmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amm)b1cut jojkx;97 tc8beter 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 resisto72qwg94c quy;xsp elu 9 z(:xqrs are connected as shown. With the suq:q47 qgxz9yew (sp2 l9u;cxwitch 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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