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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 exists in the metal resi6h03 jdko*t0n yi7qidstor connected to the battery. Which one i36oqthi k* 0jdn7dy0of the following choices best 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 connec 56plmaow7kvf:2gm 6,xdt4k eted in parallel, the_________each resistor is the sam,wl vema5kdk64g 276otpm:x f 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 causes the ficbfox 3/72c:a3/dln ds;1ota uc a*mnlament to become w*nstadcfao2c3; l/ob:xc/ n7 am1ud3hite 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 li62rgc8 o7ht ifghts are being replaced with LEDs. LED is the acronym for which tc8i gh76fo 2rone 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 rom(zigc;sln fm* (c .:b (em4has length L and cross-sectional area A. z4m((fm; cmebr (o .cgin:s*lIt 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 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 mater zy/z32y(ryr(mqz o3hs z:k8lial. Wire II has twice the diamzzy q2s3r3h8m((/y: lyrkzo zeter and twice the 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 oclukrg.26n uoa ) +cj0f the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would a +rcc6 n)gulu 2.k0johave 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 hao.u *.z7rnx zxs length L and radius r. This piece of material is then drawn so that it isn z7xu*.r.ozx 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 ms20b gl j/yb3uake a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbsu b0j3 /byl2gulb 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 *jyp /6axxhu 7v kry*.made of the same material. The length and radius of each resha*7ypx y u*vk x./j6ristor 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 resistancitxd1 mfka i6huq2.3:ylw 3+b e 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 equivalent resistance of this arrangement of fou w3kyaxt.m6 1d3 qli+fuh2 b:ir 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 diagrj- q f8bqy,8act4g1;bx txk +l92rqq mam has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter jb kt;q2t 9bx- qr g4x 8,8qa1cy+lfqmreading 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 compoundivv5;:p tva*z;,c. wwa * jtad circuit shown to the right. The three bulbs 1, 2, and 3 - re* wa;p5ivw,*. a tz:jct dv;avpresented 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 riy 6t2y*63c okf ql,se0/kodkan/c lr7ght. If the current in all three resistors is equal, which of the following star fsokec6c03l nq/ka/d6tkly2 o, *7ytements 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 representsvv.cd4rr o5yt y2-a)hr:eey-3oha r: a simple electric circuit composed of 5 identicar:r rh- ed2yt5o3:rh4v.- yyvcea ao)l 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 stateh neek hhx81h(mznr h;sm o )j;9.l7t*ments is NOT true concerning the simple circuit shown where resisto1* ort emns;xnlmzk (hj.9hh8e );h7h rs 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. B s9y)qndw0n iyo3 1:nr2n(w tfulb 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 q wf(1y9onwt i2n0nrn3ysd :)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 throp+6:nwtf1m+ 1oao hr:yurt ; yugh the identified resistor in 5 seconds u:1 mt+trn ;o+prf wyh6:1o yaonce 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 follps.+ x v0p,ahwowing simple circuit have the same resiw+.ax0h,spv p stance, 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 through the 6.0 Ωg w scyfd-cb+y5-h4,d resistor is 1.0 A. What is the power suf d-,g sb-yh cyd5wc4+pply 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, bbi fi m8)kjworp4/37and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 ha jbo7k)384pwi mirf/bs a resistance 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 connecgcc* q nrls;h 2 qrknsf:)1s w-z2;q5gted in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissip ) qnw k; grzh; *c-cns1s2l52sqf:qgrates 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 xi lopdl1(pa (mu5i.- the maximum val.lu1xila op(m i-5d p(ue 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 ox3tp g9ax:6 lg(yf:fqf a 60 watt lightbulb designed to operate at 120 volts?ft9fxq3g :l xg(y:p a6

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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 36 wt ,-w0r, fvs+gf5iw tcattrswf, i- c+v5f,0wtgts 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 **4 u0inshx em4 gyhc5to press clothes is marked "120 volt, 600 watt.” In normal use, the shhy*nm x 0g4cu45*iecurrent 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 resistancl bgrx lk80w36x74de.p u*ydj es could NOT be produced by a circuit conta *xe6 lpg. wd7jrb8y x4lk30udining 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 Ω resistg:3,owwj o7 rzors. Which of the following equivalent resistances CANNOT be produced using all three resistorswzj:w o 37ro,g?

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.06: Three resistor bdkgh4boh34m*my7e 0y;svid9 pf p*0s of different values can be connected together in different configura;*ekh b0 y4o4m9 bi7*hp sfpgddm 3yv0tions. If all three 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 is connected to a battery, a total pod9ma,idtn +)ata2y1ower P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in s+naa 1 i) da9dtmoyt2,eries 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 Rms 7 ce+unbv,i;7t fb61 and R2, are connected in parallel, the equivalent resistancee;ms +fbi,7n6 v7tu cb 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 resistance of 12Ω when operati)ax :1c:pwubr.q3b:yhunw b 2ng at 120 v)cnu:2. abqyu:br1 w3bxwhp :olts. What is the minimum 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 vzxbj.c5 )ip2is m/5pting 36 watts of power5jxip5pmc .)bsv2 zi /?

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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 ampet 3*l cgt3qr/cres of current when connected to 120 volt tc/ltg3 3*rqcs. If 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 lit3m u-q6n7lr8nl npg3,h vn*ae2u0l pv continuously for 1 year at a rate o7r6vgn qn mnaun3, -*38u0elppl2 vhlf $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 lon. c t+lh36snightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices besnhl ncso.+ 3t6t 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 r3xtw afsve;4-v f67kxv sbd 36ated at 500 watts in a 120 V circuit. If all computers bvvktfe7v x46sw;6x 33 sdf-a are plugged into a single 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,- n tosfh yvucg:**q4 (np127qizoc ffsm1v- is connected to four resistors to form a simple circuit as shown to the rightst m fg4pv nny(:* i f-1qfu-1oo,2c7qzcs*vh .
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 connkdt,ry8t ;k9)ejd)beysiz af/h,v,2 ected to four resistors to form a simple circuit ir)/z;2k )b9, ,hket, eya tyd8sfjvd as shown 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 c *,d 9 fuf(0vwcmn0zjideal ammeter, a switch and three resistors are connected as shown *fz0cn0u,9c(wfv d mj. 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 ahqxo 5l i*7sy9nd three resistors are connected as shown. With the switch open as shown in the diagram the 57y 9*i soqhlxammeter 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 anj),.q:ruo/xleu-1a gx(3wtfke a bm.d three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readtf 3 ekburam1oja:x/- g le(q,u.) .wxs 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, jea0 4 v xuph7ox04pav0d 5g+swhat is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resi0ae 7gudj4pxv4s p+50 x ah0vostors 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 cirpwcetw3n ;oax a1;8kxieup ,;/8m8 iccuit shown to the right with resisp,canix8w;uemo3 8/8i ;paetckx ; w1 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 resistors connected in q 06z (gb+cotwa combination series and parallel circqw6t+ bz(cg0 ouit 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 combiuz1jnrr f93 q,nation series and parallel circuit to a voltage sourn3 juf ,q1rz9rce.
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 bulb 4uemx(3(.k5 x lbvthds are identical. Which bulb will be th(.xk l behm4uxv3(dt5e 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 switch and t qw iwp+92pyd:h-:v ; :xjwlzvhree resistors are connected as shown. With the switch open as shown in the+j 9w izh:p2ydwqvv::wx-p; l 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 and2 9a5:ntmq *xjax*ws a three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 am2saa qx:j5 nw tm9ax**peres.
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 threxy4+b/aro6jubue 9 ) ae resistors are connecteobax4aeu96)b / +ujr yd as shown. 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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