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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 electricq 9vu1 /oehmgw o :ii1*0y9avg 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 directiogi h:v1ev* 9o q0i1/ uwg9omyan 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__ la,x64 ahf-xq_______each resistl6a- ,hxx aq4for is 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 cn447/rylurpzh8s3z zj4r 9d o auses the filament to become white hot, while the larger wires co4h3 94 z rd8 j7rsr/pzuz4lonynnected 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 j)*6b ouh-wrhare being replaced with LEDs. LED is the acronym for which one of the h ob)whju 6-*rfollowing 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 length L and cross-sec2ldnbo9 te8 +c7;c ,:oleh;uwkz;vonnkfn: - tional 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 resistivity to the old resistivity of the cyli,d lz:ou 2twe nln; - o+;:vnn7;ocb ekkch98fndrical 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 th uhoak d (s0dbp266wr65;s fite same material. Wire II has twice the diameter and twice th pshkf a (t2dwdo;rb0i5 su666e length 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 aene e,f,5 ,ew9 xt4 oammc9 xp2q)jh7but has twice the diameter and half the length of wire X. If wire X has a resistancen) m t,52cqpe ,9a4o, 7hfeweeamjxx9 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 offg (br3q*f8yngv 32w0s, c mwt material is then drawn so that fn2fv q g03wb3gr ,8my(scwt *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.a-y r :doun5.( gim7pe He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more liguap7yo:.-mird(5 gn eht 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 sa krm2q ry m+g1ty5bwrm9zi;, 6me material. The length and radius of each resig;,ytr1rk yw im96mmrb5 +z2 qstor 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 rerh bcr0cti 088sistance R, are connected 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 equicr rib 08c0t8hvalent 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 thehib) jo:ic 78nzb0k h* accompanying circuit diagram has internal resistance 10.0 kW an78h z0* c i)knbijb:hod the ammeter has 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 right7 ;uhciv22nh d. The three bulbs 1, 2, and 3 - represented as resistors in 7uvc22i;ndh h 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 simp pg z+lsf95we,e- bns*le electrical circuit at the right. If the current in all three rewenfbg-s s5*9l+, epzsistors 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 representlsa. k40,mw 0z /u,uleg8is4 fwd( lpos a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whichf kl8u(se oiuw 0 4g4lz/pl0,.mwsa,d 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 fosr8v;4jknl709nrrmz llowing statements is NOT true concerning the simple circuit shown where resistors R1, 9vzj s;7nnm rrr8 k40lR2 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 serieqdjzxzu0ih gfb/06j763 at6 o s to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to the same battery, which one of t qz3i0j t/76uz6xg jo fha6bd0he 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 wiq1jh(;cc--0vz jj g4-:wwsoy4z qbdell pass through the identified resistor in bz -s-0dzjycw;jce4:g-wvh q1j q4( o5 seconds once 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 resistors in the follo2 ,tny4jdror5c*ik p 3c t(fo8wing simple circuit have the same reftty d*kic 2,584oro3 cpr nj(sistance, 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 tak k/s7gv7;j pco t: t/z95icnhrough the 6.0 Ω resistor is 1.0 A. What is the powerp:ks77v c tj ctn/kog59az; /i 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 resistoksva/ 9z,j2,+unuoe mx ahr w8-ls3t 8rs R1, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. What is the voltag/-alvk s8+unzujoths 39, 8a , me2xwre 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 resi-3a6oagb qr w*stors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 =garba*36 qw -o 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 volts. What is h3p9)prok) x xthe maximum ) xp3 ho)xpkr9value 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 66iif 8mpl1kr watt lightbulb designed to operate at 120 volrk6fi8m1ip 6 lts?

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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 thk jo 3h56g/ dcu:sxvo7at is dissipating 36 watts of powergh7/:c5sokdo j6uvx3 ?

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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 clot4a;uwrz 2jo5nhes is marked "120 volt, 600 watt.” In normal use, the current zo4unarw;2 j5in 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 p5 kpapbz k,r)8roduced by a circuit containing only three identical 6Ω re8a)k bz,r5ppk 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 resistorsusc8s2yn(c g- . Which of the following equivalent resistances CANNOT be produced using all three res-uy(2s8gsncc istors?

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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 ind 3 tsu 4hun ,a4pim;q8c.)fey different configurations. If all three resistors are used in a ctfcda44e ,3i. mnsyq) 8huup; ircuit, 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 is connected to a bopeqp* 9/sj2eattery, a total power P is diss2 /pqopes9e *jipated 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 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 and R2, are connw1 cy h/ea xo1xtje4p1e(wp,;.w ;fjjected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is correctteofy pwa(xe., jwj4; c1epw/; 11jhx?

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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 dev dvab-5fr5jr4r4-qs signed such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.4 dsjrr5f4 5rvav-q b-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 fzvm8 vqh8z2yk 8tv .xxx85 ep4lows through a 4 ohm resistor that is dissipating 36 watts of pxekp 4xq828vh5zzvv 8ymx8.tower?

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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 connected to 120 v-:no6dxtd11dum cktfk)t pr 8e)/41bhbt3 kxolts. If the price of elu86e k/hx:b 1nxr) b1tdom-cp kdttt k)3df14ectricity 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 it1rx;iaw duz2 uyl61/u5vfcpcy n a523 cost to keep a 100W lightbulb lit continuously for 1 year at a rate of u l;py1/n5cy 12v ur6aw dcu5az3ix 2f$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 resu-72glwra ictbk 9v 0/j , epoq1+b,tbtlts in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the ligarq io l0 b wk,1/pt,te7v29btbg-+jchtbulb?

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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 s3gun-etn/ml 2 brq:s3g( oa3 f3vqcjda0 ; 3nvix owns a computer 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 mantb;3 ormauq:dv3c -e gaj0 n ( /3v32fql3nsgximum 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 resd8 nd-f r62llbistors to form a simple circuit as shown to the rirdn bd62f -8llght.
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 rrp6g4zr5bie*y,o 0rx + bu*cresistors to form a simple circuit as shown*c5ibe,r0yrrrgo+* bu 4z 6xp 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, a switchv yx jm:b/v:u j)kl: *ecoa6/l and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. jl v:u /xv:bkmje/a* o:)l6cy
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 uj04s-2 hore psvn)v7are connected as shown. With the switch open as shn-j evho) vr4s2s u7p0own 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 ideam gj+b-/rw w ok8g,l(bl ammeter, a switch and three resistors are connected as shownrgm- lbjb+,wk o/(gw8 . 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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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, whator *qxpvj377*eoxx . c is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resrxo.oe7vx 3xj7c *q*pistance 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 the right with y;yn7cl4 mix 4pxlc)3 resistancm7yipcx3 y;xcl)4l n4es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connenbt38zl* 3)kokiy7i ccted in a combination series and parallel cn)*kko 3 izlbyi7 3t8circuit 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 combinatib n -btk2n;v /r9-tdthon series and parallel circuit to a volt/r2b t;9kttnbhv -dn-age 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 tm;,j+a 3x j;lkjlpn k4,vx8 mthe bulbs are identical. Which bulb will be the bright8 jx;3xm,;,tj+ vakm l jnp4klest?


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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, ivxgts*)ys. iz( 53)eoqd- ocan ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ami).cs*t5 xyoz i3)dqe vog( s-peres.
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 -)vt t6ptirrrh3v*; wswitch and three resistors are connected as shown. With the switch optp6r)irh 3w;vr t-*vt en 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, an ideal ammeter, a switcx*rp ry ;1k 4vhrpyb7 tshq(5ni .l;wt1ege, 5h and three resistors are connected as shown. With the switch open as shown in the l hwk7;yrg1 nt1r 5b;hr ietv .(y5seqxp*p,4diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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  • 姓名:游客(未登录)
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    总分:50分 及格:30分 时间:不限时
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