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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 currentz x7z r1eb1qkxh92m8d-ys-pj 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 direcrbj zxpe7xsd 1m8qzy hk 29-1-tion 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 resp05p7q2trw h7 y hcsi9istors are connected in parallel, the_________each resistor is the sarhys9 t0pc 7ip72wh5qme.

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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 filaoh)n ;fk0(j u)ezued 1ment wire of a lightbulb causes the filament to become whiteu;()k)nh 10zfojeu e d 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. Lnpib6g iai( u); ar3.dED is the acronym for which one of t iip id3.)6abnrg(; auhe 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 lengv+e7ssjbf;p7. 9 t3el06 fi (ujcsdkjth 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 the new resistivity to the old resistivity of the cylindrical resispkdl 6 iju;7t jfes s+sbj9(3.cevf07tor?

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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 a 3a,rj):n8a etilt2q zre made of the same material. Wire II has twice the diameter a t:ana8e q)l ir32zj,tnd 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 of the same m.e:7 n rsro9alfp05sq/ dwtm+ aterial but has twice the diameter and half the length of wire X. If wire X has a resistance of Rwdr7/ensop 5t0 r:.sqf lma+ 9 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 resistorzkb+,3tvr3mn k9b4 fj has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. Whb,kj3t9 vb4+f kz m3rnat 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 decides s4 bw19.ao q mz1ouie93oi/j eto modify the filas9/i19w m3o 14queoijbaoz .ement. 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 reo-u)fp-z+9*x2on 7aupotm gxsistors are made of the same material. The length and radius of each res)fo79n-x *p-m ouo zg+ utp2axistor 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, ea:q :v6 -tirw,u3fwecwch of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors :c:re,3ifw w u6qwvt-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 resistancds3 ucar8+d. ce 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading isdcsd a.8+u3r c 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 m/ 8gj )oi;+*e zcaulccircuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagram e*+)jliuaz 8c/mgo ;c
- 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 el2/m1kamv/dv cwxg f tnue56ld6+t 7+xectrical circuit at the right. If the current in all three resistors is equal, which of the following statementsax1e2 flcttkwd gm5x7 uv/ + 6dv+nm/6 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 composed of /oax wfus8r:cyn1(tphfcg01 7k u p,05 identical light bulbs and 2 flashlight cells. Which bulb (or8xy ( cfcustp,1f 0wg op7u:nkra/0h1 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 simple ciy:b ej)7 vx(c(q8pnmho ff,(yrcuit shown where resistors R1, R2 and R3xh cj pfnf:e,()b7yvy8 (oq( m 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 connec+f/f953zmpzio2xew ited in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs zi2+35wzo mffpxi e9/ 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 pass thro6 ehiutos;/usgl 7,9 wes6oq(ugh the identified resistor in 5 s;sw9s uoo 6i ,l7eseh q6(g/uteconds 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 circuit h (om (f a*tb:lf)cictizv7 7e.ave the same resistance, which wou olz7cf7tc m:b eia(ftv). i*(ld 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 accomp:v.utv1ds/c t xq /j:tanying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the powert1 u:v.q vd//tx tsc:j 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 connecavr48bt5cz8 -di 7sit2.jfsg ted in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0b78cvaij5i2stsgd.-4 tr zf8Ω, 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 parallel to l+ogus n9xf 4; qasj*6a battery. Supxf6;jlsgson u q*49 +apose 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. Wh91t-kh drj4,z 4f6ql i;s h;5y3albkozo;tleat is the maximum valo6tz rqa3 l5;ielozs,dj44t;9 k1bhklf hy-; 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 of a 60 watt 2.b--h oy zz,1icwchy3t2mbclightbulb designed to operate at 120 volc 2t1owy-.z3-zh y mcib2 c,bhts?

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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 fumgih:-ij) rh9 3yzb *tq,w.rlows through a 4 ohm resistor that is dissipating 36 watts of pomq gziy:9.-,j h*ib h3)uwrr twer?

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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 watqxa k0ume8gug1lovm,.+ uxzg r:*, x9t.” In normal use, the:x a, + zkg .uro8q1xgumx9ul,v0gme* current 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 re fr2 qvjtz v8a1-o58.xr su-eysistances could NOT be produced by a circuit containing only three yte-2vrso-uq 8rx.5javf1 8 zidentical 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. Whur)soq)q )e* q*lc (x(qr2a-6ys gfi oich of the following equivalent resistances CANNOT be produced using all threeq*)ic q e)sosyq(-aqf 6 ()2 xrr*uglo 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 valuesh 4(.a4ds)y 3yjye buc can be connected together in different configurations. If all three resistors are used in a circuit, how many different valy3uay )jdyc4e h(sb .4ues 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 conn1e)a 1lfgh0o ci74fhzected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n ideng7af czl0h4fieo 11) htical 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 conc50wc3). s bboa fsevj56ao*m nected in parallel, the equivalent resistance of the combination is 5Ω . Which of the follo6 a j5bsw m5)cfs3cvba* oe.0owing 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 128z 5;jsi ;aaujΩ when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of waterjui ;aa s8;5zj 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 t;b/;zcfk /p y* ska-ur oph)7xk8ta b0hrough a 4 ohm resistor that is dissipating 36 watts of powezrap/ ;*) -ostf 0bca7k;hx8/p y kbukr?

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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 heate6mi5+- .wkbhx yn i;n7cud1 owr draws 13 amperes of current when connected to 120 volts. If the price of electri +kniwo.5;-1bcw ud hy6x7imncity 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 cv 5,q 8fdahyre/i e-kd (coq:.ontinuously for 1 ,iddf-keaov:q q5c.(er8hy / 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 througu3ttnj: ;t 8jxcl6jmd jaz9;t y07b4wh a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the fol 06;83 4jmyj9cx ;tjtj:7abt nldt zwulowing 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 iom5rs)c ,w( vfamily 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 number of thewo s mi,)vc(r5 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 resistokuwnup4bu v/. ad4o+m)63xebb5 2kljrs to form a simple circuit as shown to the right 5 3b 6w4kmj)ux 4/u bnkel+.2uabvdop.
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 rdg(pu 8usz 0,j5om.k*oqk cy ;esistors to form a simple circuit as shown to the;p*ycsz0do8(ug u,m ojqk.k 5 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 rs l: htf: agj+-vbutko9zw2t 8k.+3b aesistors are connected as shown. b2j vs+3l ktuh8:. gafb- k+t9zt aow: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 and three resistoj)uo**ez85bs-c.vp) yw il jtrs are connected as shown. With the switch open as shown in the diagram the c tvo5* )- i. *ysjle8jzuw)bpammeter 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 resistorsu4* 6i+ysierw i+gbx mph+8p- are connected as shown. With the swi8+h-+*e6 ryiibipp u 4mxg+sw tch 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, w.a, x;-mn tlpdhat is the equivalent resistance? Assume that all wires are ideal, the battery has no intem xtl,n;-da. prnal 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 resistatb bcj y27ge-8nce of the circuit shown to the right with res ebgjb2y 7c8-tistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistornd1k,g lm9e6,h h )eq/erb4bbs connected in a combination series and parallel circuit to a voltae1lerb6mbh 49,n)h,e/ qkg db ge 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 asn +h068bsk bk combination series and paralkb+6n0 b8sshk lel circuit 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, all of the bulbs are identpi:oz 7v:- j*tz0(rrsz2 hpmuical. Which bulb will be the bru:*(-:r0mv hz 2 orj7ippzts zightest?


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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 dfm:,j// n:-n/xoy ypc 3wjlxhree resistors are connected as shown. With the switch open axpc,ly/ : :djw3 -/n xjyof/mns 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 three resistors ar s ,x*7lrc (agbiqt(p(n-sz2u4yf:s be connected as shown. With the switch open as shown in the dia:bqipx7n st, 4ab f*z 2(rgsuc(l( s-ygram 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 threlh*+ v3 mthac s/o v3j2gt0: )fnt7wmfe resistors are connected as shown. With the switch open as shown in the diagram the h/ )tvj3wt ls0f mf nav+g2:h*ctm37oammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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