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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 electru;lc 4ljabsx v1;z .:vic 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 thr l1c:ux.v ;lv4jsz;ab ough 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_________each r- 2.jk jt(vasnesistor is the sa-.k2j (tnj savme.

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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 caug(7. o9 cdg l0d vjvja9v1mnt(ses the filament to become white hot, while the larger wires connected to the lightbulb remain mucmvn9.gcl v07jgd ovtd (aj(19h 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. LED - i.hyh1 nr1rris the acronym for whiiy n1rhr1.- rhch 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 resiim94 36u9d,gh )8yjxhfujkfn stor has length L and cross-sectional area A. It is to be placf6hxkj un 893mdi y)4 9gju,fhed 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 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 5j*,vf yc8o.*gk dt mttwice the diameter and twice the length of I. If I has t,j*8dyfovct5m*g . kresistance 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 materiy sg *2s(hh, zsab5e8sal but has twice the diameter and half the length of wire X. If wire X has a resistance of R th(s sghe 8zbs25as* ,yhen 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 mat/- )mc 37d;;zr2diyjeqdad d nerial is then d;id cmy-j3aqdn27;erzdd d) /rawn so 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 Edison wants to make a brighter light bulb. He dechzoi+2 *wbwkwx2d :/hides to modify the filamendih*hwzw +:22 /o bwxkt. 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 of the same material. The lengh :.q6m*.xrv/fdv +jz.c fqmie(u ( bxth and radius of eachd.h.emxf/f( u+rmz(x.*6qv :j vc bqi 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 battery ineeg ij(3x6 ch yxcgk7z -6m1:n the following way:6zgyjx xcnk7e1eg hm6i -c:(3 “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 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 resista5-xa5 j mgs6/ tl dxtk*s/lfvoheh 5n7.cp6z5nce 10.0 kW and the ammeter hgl 6xsm5etl*a55hv/n x k j/pof.-67sz 5cdhtas 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 shown to the right. The three bulbs 1, ra e la/rnwdwn1 *mgg ;*vi8332, and 3 - representegrrv3gn /wmwea;3*n18 ia *ldd 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 the right. If the current cse95;,p pcpzo .x9gk in all three resistors is equal, which of the follsp,kop.c; x9ze 9pg5cowing 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 comprmy( qkze 6g 87h(ic8xosed of 5 identical light bulbs and 2 flashlix(6qgc e8k(7izh8m ryght 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 stateme.n 2 3p3xwetd4prnm 4d ,wz;k1io4aeznts is NOT true concerning the simple circuit shown where resiaez2kw ow i1p p3nmd34.,zr ;tn4e4dxstors R1, R2 and 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 connected in series to a battery. Bulb X is(aq8xww zh-j,( 6 ydx.p rv.lt brighter than bulb Y. d qwz6x(h 8(yl.wxp a-rv.jt, 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 ks lgh7hd6q 0a5 annwspk5uii)6p .(5 will pass through the identified resistor in 5 seconds onc7nap5 usn5 .ka(kpw)6h0lghs6ii5 qd e 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 resisf(xe 2ob)dpv;2a ;wmv +v 2uyetors in the following simple circuit have the sa p oyeuvmaf2e)2v;b(2dv+;wxme resistance, which 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, the current thr dw-/3x7hyy lqo:a:h rough the 6.0 Ω resistor is 1.0 A. What is the power supply v3x:r-y7d/ylqh w aoh:oltage 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, R v (kwou)ks1q02, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resio1su qk )k(0wvstance 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;/waxf6 pnk7j6kadm 3j h9is4 in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 9a6mfk6 ndi;hajw 734/jpx ks 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 a *qzxe omxfo,d9 lyda9r*9+z0nd 120 volts. What is the maximum value of the cr yxzm,9l0d a9*e d9f* z+ooqxurrent 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 tay4ra:sk+u) mfj1m ,mldxe9p z*60jk o operate at 120 vdj: *0mep f4l km6 xj+,kr19yzmua)saolts?

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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 dissipating *v vk,++ )ztlj1skxmhz7:tcqouq( n p43fp1v 36 watts o*c:+)q1+,73sv1l(zt umpvxzjfh ktp qokv 4nf 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 is marked "120 volt,;u vxj; wwx4e8 600 watt.” In normal use, the curr xe84wjvx w;;uent 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 bmavw9 4i)mx/dbp9z) ay a circuit containing only three identical 6Ω resistors?)xdpa 99 )/va4zw mmib

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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 a5 /l6r 55m978riv rnua z9y0fisciiq1.0 Ω resistors. Which of the following equivalent resistances6n78iivl /95cza rqifuy m 5sira590r CANNOT 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 valuey16 g2vf1d qqyva xj.-s can be connected together in different configurations. If all three resistors are used in a circuit, how manavdf2v.y1q gy 61j -qxy 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 cpx 8 8.qahm ltqi-7y2l2h(qrtotal power P is dissipated in the circuit. How much total power is dissipated in a circuit if n idxh l828mrliq(2cq 7.- ahypq tentical 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 resistors, having g9aexvj4; :pln (d2dyresistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistance :2g(;l4xdjye p9n dvas 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 nb hrol 3 -4;hm6h0huq when operating at 120 volts. What is the minr0bh3 n-hqlh;m6hou4 imum 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 res.jnxkk8zn qz)dy0y ,gu7wi37d0a k: e istor that is dissipating 36 watts oyy 3zq 00kd 7iunkek7 ,nxjd)z8ga:w. f 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 heb +u3e)n x qd/f8n0neuater draws 13 amperes of current when connected to 120 volts. If the price of electricity eq83bn)fe d nxn0+u u/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 keegddk6 36 2ysjop a 100W lightbulb lit continuously f26kjsy3dodg 6 or 1 year 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 lightbulb results ibpx)3hm zro t ;0qo:52spv1v an a power of 24.0 W associated with the bulb. Which one of the fol) zr0tqxpsvhb2 p1v5:o ;m3aolowing 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 watts int+7.94mv kwsw iv*s;-tp um fi a 120 V circuit. If all computers are plugged into a singv4-*tuwkifwiv9. +t7m s m;sple 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 fo oi(t6,rpim4 sk*- zns z,o,skur resistors to form a simple circuit a*,k-somn skt6o,4 z sir(pi,zs shown 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 resisb. jknldr(;sw1k;oi1 tors to form a simple circuit as shown tos.o ;jlrw;(11ikkn db 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 resistors0: xg7k x0aq k0vrapu- are connected as shown. With the switch open as shown in tup 0a gq- 0rk0v7x:kaxhe 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 arjaz1-x k38jy(0o5ixe haaab e ln87r; e connected as shown. With the switch open 7rz8-eja305ia8lx;k1y axe j ao(nb has 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 thr(+wuzwm p*l .yee resistors are connected as shown. Wumyzw+*pl .w( 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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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 resis tqwk8pz84g t-tance? Assume that all wires are ideal, the battery has no internal resistanc8 4wgttpzk q8-e, 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 .9uc2eexq ,mt the right with resistanc,92u mqx t.ceees $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 a3f6pxlepdxep2 it((+f( dq 7y combination series and parallel circuit to a voltage source.ifyplx(d3x+ p(6f qd(e72pte
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 resistorsqn5 /mb, xf4jnr+7t/d9py xzo connected in a combination series and parallel circuit to a vol/ d4,+yqj/z 5 n9pnm7bxtfo xrtage 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, azj(y5ubplm0+ ;i a ex)ll of the bulbs are identical. Which bulb will be the brix;0jl(bm5puz+i a) eyghtest?


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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 resist:gt sw1q3up2oors are conn 3gotpw u12s:qected 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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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 thre*h )5d 4o6 -bubotnnri k93bute resistors are connected as shown. With the switch open as sunb uoo9bik hb ntt -56*rd3)4hown 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, an ideal ammeter, a switch and three r ogby(f j hr-,6gfs+uzz; ic /u1p,d8uesistors are connected as shown. With the switch open as shown in the /y hz u(z,ig81o cu;bj, fu+6pfdg-srdiagram 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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