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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 electricr-slbw0:peezt z1 nw 0t;e5;q 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 fiqe0 -ptz l50s;zeen1;w: wtbreld 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 resistor+(ya.b +gbprdj/udd ) s are connected in parallel, the_________each resistor is the samb(+ j.yur) dpg/+bdad e.

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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 causz x5l plqn:0 uu t cyb.w594wu7v0sry3es the filament tlqu00b4 cl u9 5 wxy5ptuzs wrn7v:.y3o become white hot, while the larger wires connected 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 replaced with LEDs. LED i mbp p7xmx xnob:xva);2m19 b:s the acronym xo1 ;92mp7xxbp bxbvm:: )mna for which 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 resistor has lengt1ml yo5igcn.(:x. cxldw8b 9bh L and cross-sectional 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 b.n98 1.b i(cxmw5c:xgy ld lothe 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 nav*w er li7* 0w0/ijvtwice the diameter and twice the length i7en0wr /l0 * ivj*awvof 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- 3dh o+wo/ujb the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R th -w+/o 3huodjben 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 lengt: q;ywpwn+wzd0mazd4 + s5k q9h 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 of 4waq+p;m9qw:yzz k0swdd5+ n 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 lakq+z6,*hkdz q//+mn.awte make a brighter light bulb. He decides to modify the filament. How shouhlma /kq*aq,+6wzd.e k/zt +nld 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 p:ny7 fbn30rcsame material. The length and radiuyprn3bf :c0n7 s 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 connecti 8eiwu1h z.,oed 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 equivalent resistanc8iw1iho. ,uz ee 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 diagramg9gzrr/y; z:y has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. Thryg; y 9/zgr:ze 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 k.hh .unrej)go7 a-d 3shown to the right. The three bulbs 1, 2, and 3 - represented as resistors o) 7u. gn-k3adhj. ehrin 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 righ)fc38 rkco)l nt. If the current in all three resistors is equal, which of the following statements must be fc8ocnk)3l )rtrue?


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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 r,k *lconfakvq(vy1 +m0/*dyy epresents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells.(olyyfa /c+y1k vmkqv*d,*0n 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 nh/li zd)zc3*:rbp:l ern n3) true concerning the simple circuit shown where resbc)n:p3 l) /nde hzlnr:rzi3 *istors 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 se/cjt3a 9sa lhkqzh))3 ries 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 ont)zh3c3 jl )sq9hk/ aae 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 throuwv/, p0cn+ .ltftkr41f-jm fkgh the identified resistor in 5 sf t1knw4 vp0/.jk ,rt-mflc+f econds 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 following simple circrzpg98x c3:ce;u f a ff.zdx2.kqx)k- uit have the same resistance, which would dissipate the greatest power? ;8:c2pcgf k adqre39 zx-zk.fx .fux)


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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 currentt0s;0ved1n;q ne /lz j through the 6.0 Ω resistorn0de;vzj/ln0; s1qet 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, and R3 are connected in series to a battery. Suphyc mx175xf 634-fqgorh)v8d ld ujx(pose R1 carries a current of 2.0 A, R2 has a resistance of 3.05xxgfyu d4(-dh lrj7 cxv3 q 1)ofm6h8Ω, 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 red b40hyf x:be4sistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V acro bd:04x4 fehbyss 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 volts. Whsdk)ltwg -j-9 at is the maximum value of the current under these condittdl-9w kjg s-)ions?

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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 ac15;yua l)hgzcof qya/(9p u 3 60 watt lightbulb designed to operate at 120 v()hul p 5qccfuy9y/gz 3o;a1aolts?

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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 curr (1fj gshm,s (yaboz.3ent flows through a 4 ohm resistor that is dissipating 36 wasmo(1.ysb(ajg3 z f, htts 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 is marked "120 volt, 600 watt.,+s3; cc0o1gaf u 94nduxks yw” In normal use, the current in it iuykd3+ 4 ao1 ccxus0f;gn9sw,s

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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 produceddk9q4n107tgb hg x,c p by a circuit containingx,h7gk9dnbp14 gt0q c only 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 zk l(d1v +4)g zxt-qpd c9q9y;qof/eqΩ resistors. Which of the following equivalent resistances CANNOT be produced usdqt)qcq 9fz9p4;ez g kv+-oy1/(x ldqing 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 connects8d zva9)* lwted together in different configurations. If all three resistors are used inlwzs )98*advt 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 is connected to a ba4rp e5uwd67d ottery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical r 57ore6 u4dwpdesistors 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 re4 x-fz*ybi kl:sistance R1 and R2, are connected in parallel, thix4 *bkzf- :lye equivalent resistance of 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 re67d6o unnneah d *wnt h4rzl(7(0ca p5sistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water6d a4une(lh 7o70 r(5np tw zan6cnh*d 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 44jpl + 0dvvzu4 ohm resistor that is dissipating 36 watts of pojdpv+vl04 zu 4wer?

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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 w n)c41)hxtj;x6 lowc s+e z eiie1ez:itp8,) amperes of current when connected to 120 volts. If the price of electricits xjz leop1)ee1,8wtt :c +i n);i6wcz4x ih)ey 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 continbj /vx; -x1c9 7trg .vrv+ir j9w9gjeouously for 1 yea ve.;7+r/ xvijrjxbg1- w rj99vgot9cr 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 *v e5si)wjjsl zkv) .;lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the ligevkz5sj v lwsi*)).j; htbulb?

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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 f4fv9yca93p75v ps*t 57batgjy ni fn-amily of six 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 maximum nu yynf77pc 5gf3 9*vtanbt4jap9i-5s v mber 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 battcldx-7almhl **p)ip 2ery is connected to four resistors to form a simple circuit as shown to the *llai d l27xcp*)p-hm 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 resisto -sm s lwa8*1w*bnnb0ndx o9m. a);kaers to form a simple circuit as shown to the l*-b ;we sndn bs9*oa.am8x0knm1)awright.
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 am 1qqu rje8wc43meter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. e 38wuj4rcq1q
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 resipo flbp.suo9*yynm)0 mc w7 47stors are connected as shown. With the switch open as shown in the diagram the ammew4p.o7u p y*cynm o)mbfl790ster 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 arewrb;np j.)m2hxgn vrr 8je-8( connected as shown. With the sww8bj;p.h8 gjrn2 e -rm(xrn )vitch 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 the8g sqxc6s/vygi9r 27c right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors hgsv9c 276rix/cgs8 qyave 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 o6t0vz-w;tct wf the circuit shown to the right with resistz0c6wtvw-t ; tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 9cak9c 2/jydy resistors connected in a combination series and py99c dc 2a/kjyarallel 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 comh a*r/d-mja3a4 bkjg n)pbay56ms5 n7bination series and parallel circuit to a voltage so7 jap/d3akrah5a) bmj n6b 5ms*-4ngyurce.
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 identic,bgu7lv2 guf oplqz,3i.s1 - 3nr vs;hal. Which bulb g3 g lf,uns3sv,ip.ou-h ;2qzr71l bvwill 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 ideal ammeter, a switchn 47tmhr k zgdfm*;hlkbf:69( and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readh r;mt9k f74(6 lfbzg dk*mn:hs 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 ammetet9 ))e 3 vvm5kgn00xcwqsub:fr, a switch and three resistors are connected asx0 u0v5ctg me)9ksv qfn:)3wb shown. 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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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 h y82qdyvdh 7c1.;jne,9dbdiand three resistors are connected as shown. With the switch open as jy dd7 ;9d,cdqn.y8ih1b 2vehshown 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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