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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 currbvay7m. mt6 e)ent exists in the metal resistor connected to the battery. Which one of the following choices best describes the dirtemvy.6m )7abection 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 connect i972x37bky(lckgdh sed in parallel, the_________each resistor is thec37h2 xlids(g9 k7ky b 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 kf,o:s inp7r7d.fol0vlwi) /wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lon7il/ i. s, p0 dfkv)olfr:7wightbulb 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 ady +1-6jseywq4f -x bnre being replaced with LEDs. LED is the acronym for which one of the dqj wb4e-y+1 -ysfxn6following 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-sectional9jqj-o,oa)x-; tr tus 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 resiosj- ur),txaoq t-9; jstivity 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 Idokdqkta/ 9)5I are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has re9dok td/a5q) ksistance

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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 twip ukuhhgnuaji93/xtl jx 6d-f7.y 8532r.f hfce the diameter and half the length of wire X. If wire X has a resistance of R th 532iu6rf. h9ft3h78.-uxj pkxjhlug ny/da f en 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 p,ba 5blzyvfxj++ld *0iece of material is then dr jy++5la bb ,0lzvxfd*awn 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 ;pecw22m zk*vgq-a2d to make a brighter light bulb. He decides to modi- 2*ev2pw2gad ;zckmqfy the filament. 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 majp51jix7 bwnj sh5 :s u914cfmde of the same material. The length and radius of each x17u pf bi 5nsjw159:cms jjh4resistor 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 col9ye43j0z aii,6,b mrh)+/euxvxgh lnnected 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 i,hlz0xavh 3jbuy 6rgi/m, l49e+ )xeof 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 inok7foy9k aqk4,o afo) :n9 ci*ternal resistance 10.0 kW and the ammet9,47kokoaoy9 )a:c* niqofkf er 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 circupb2d 2meau egs1 d ;08,+vwocbit shown to the right. The three bulbs 1, 2, and 3 - r m8gu; 0asdbp2we+dvc2e1o,bepresented 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 n owrt.g+ 30gbat the right. If the current in all three tr. + wgon0gb3resistors 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 represents lkm+-wfjzg5 ah)eivcn 1z0:1a simple electric circuit composed of 5 identical light bulbs and 2 flashlight c) zhj11v ikmwg0zc-la: f5ne+ells. 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 true concerning the simplegmj(6ody - sv7 circuit shown where resistors v m (dojysg6-7R1, 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 connectedu y+lga,/e6ied7x5f k in series to a battery. Bulb X is brighter thal 7fd+aue kxy i/5ge6,n 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 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 fvwedpf5:(,xx5 b wx;pass through the identified resistor in 5 seconds once the circuit wv5 fpf; bdw(wx,x5 ex:as 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 cqp:7: )olv(gp lrqqo 6ly; gw9ircuit have the same resistance, which would dissipate the greateg y6 (lqro wp:ovplq:ql7g)9;st 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 througgitr)4; .)m, utb ;a jymzz4k at)zce4h the 6.0 Ω resistor is 1.0 A. What iu b, y4k ;rtgj; zitaczmt4 az4.em)))s 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 e+x4u i4gjvwhw/1n (gseries to a battery. Suppose R1 carries a current ofgn4 +(xi4whvwje1g u/ 2.0 A, R2 has 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 connected in parax b vra wj9y(:od4., d4d7f,pgazbl:pllel to a batb7 wlz,j:: .(4aaxdgpb ,rfvp9d4od y tery. 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 volts. What is the maxim -xt1 oqll.+udum value of the current +x1l-lodq.u t 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 desigt7umn0-rae8icu3 d *jned to operate at 120 volt0udn7 eci3jr t8 -*aums?

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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 dissipati+ ftsxmrdpe2h9 o5 ;+zng 36 wa refd+ zo 59phsxm2;+ttts 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 uq+nc3op 74ipu,o rfpb/j). xused to press clothes is marked "120 volt, 600 watt.” In normal use, the current in it is/i+r,qn 4px)p jp ocbu 3fo.u7

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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 res5wsc2ce0 dhc, istances could NOT be produced by a circuit containing only three identi ,cw d02cs5cehcal 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 resistors. Which of th2yi:c umf9fq-e following equivalent resistances CANNOT be produced usin yu9m2i:f qc-fg 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 together3n+a8fk1y +fp md2 geuu,hu *a in different configurations. If all three resih e81fymgf ,n*u2+3d+ u puakastors 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 battel s1e(jk9+lqp/g c 2lcry, a total power P is dissipated in the circuit. How much total power is dissipated in a circuq 2js9g1l(+l ccekl/p it 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 resist;4j/rl kjox/cors, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is corolcj /k4 /rxj;rect?

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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 designeo8v2xn18,5c yv-bcsureb(udo1 . o ved such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of timeu ouy5vve(.c1 ro2ce8bd-xno,sv8 1b 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 dissipating 3ouwwwz4t ox9y.)i5aq *)qh 1u6 c tyd/6 watts ott6)u 41 q)iqaoouy5zwx w.9 dhc*yw/ 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 heater draws 13 am0 yy-ma7+cwu qperes of current when connected to 120 volts. If the price of electry-7u0q aw y+cmicity 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 3x0dqoxk6y 9b lightbulb lit continuousl36 9xbodxq yk0y for 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 in a power of 2 tns7nr6pd w.;qwwl(l /q-qgw a5y 9*p4.0 W associated with the bulb. Whicl daq7srwpn6*- nw9y ;gqw t5q/l.(pwh 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 rjr g7k3r laq (6wr90 6hrw21tw*ipfrkated 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 number of the computers can be operating at th6r0 7 gfpri jk*wk rq2aw3wr196 rl(hte 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 battesf+ . njvp+4 ofcfoh.3ry is connected to four resistors to form a simple circuit as shown to the r.vcof4s3nf+ f+h.p ojight.
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;ko92 gc pa dz3s:f ;pevyn8r.rs to form a simple circuit as s9pscv3na .p ;;gefkzoy: 8r2d hown 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 switch and three resistof*ekz6x- 3*ikiaq9 vy rs are connected as shown. With the switch open as shown in the diagram thee x-i z6kq*f3ya*v9ik 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 amkk) ge,21 wcep95uj04 (qwrfe el1for meter, a switch and three resistors are connected as shown. With the switcw lr2ke54 ec orjf0 u( 1w19kgeqe,p)fh 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 resi8 (k kjsr7 *jhxliffr+8gc5e: stors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a*5sxhfef8irk r jjlc7(k8+: gmperes.
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 shbm+7)wlkvhbk r7/u, rf)zd(b own to the right, what is the equivalent resistance? Asbfmhrbb)7rk k,u(7l v /)w zd+sume that all wires are ideal, the battery has no internal resistance, 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 oftai+m5q h r/d2 the circuit shown to the right with resistances/hr +ia5mt 2qd $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belo*)g eagarg)fv f.s)s(w shows five identical resistors connected in a combination series and par.rags) a g))fevg*(fsallel 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 bel 9m9 ntc//ziynsy,yp ,ow shows five identical resistors connected in a combination series and parallel circu ytnc y/mn,,i/pz 9sy9it to a voltage 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, ztdmy0n1m7e7)jkz(;v jfm8 o all of the bulbs are identical. Which bulb will be the brighte8nm1 jkofvm7etz ;7d 0(my)zjst?


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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, a+9w ) 4fivmcfu)n/ t7/jicgzt1mvzayr ,f)+nn 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 amperesn)+ )at )viyg9jf / ,cmztvwf/fz71u +i4cnmr.
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 thcm nz u)dnk: zw iq8,ib2 ykk-0/.-rjdree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.ki)ndc -jy 0/ bn- z,kw:kdirmq8uz2.
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 resistors atmjll, 2xb2 x 8ef43ozre connected as shown. With the switch open xlf32zlt ojmx 82e,b4 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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