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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+ (y9pe2s0jpco.ge my lx(hd*, an electric 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 ands+m (e ph9od (jl2.0 cxpgy*ey 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 connected lhk rr3;7synu z(d+/td y17awin parallel, the_________each resistor is yrtry7u(7n +l wk sd/a3h1;dzthe 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 wi tt1j9er(*,q4k .8esojcbx mire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This hapt kj1s,j.q(8bei9rto m4x e*cpens 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 a(ipk)gy1gdx4q wv 82qre being replaced with LEDs. LED is the acqgp2y w(igv8k1dq )x4ronym 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 l2pix) m5.jp ddength 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 newj)d2.p mpxi5 d 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 b0ayge.w8r u , b9gqfi. ld;5fthe same material. Wire II has twice the diameter and twic8d 9qra ,feyg;5bgbf0 i..wl ue 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 samejt xb6b63lcd- g4bhy; 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 have a resij6 6x-d b4bh3glbc ;ytstance 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 np4q x3g t;/fyand radius r. This piece of material is tf/4t; yp3qngx hen drawn 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 to make a brighter l6k7 m piyq4*:.v(b fnhtozf0right bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a gio6if rh:mq7fp.zyv b0(*t k4nven 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 same aa1urr37 gluzi ,1dvc:c2e+ 5pdr, ht material. The length and radius of each ,puz1dih u,3r1a ge5cvl27 da:+r ct rresistor 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 connected to a battery in a )o5;sz:3tjhtf s3+2xcrrxktmpf51the 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 resistahmr5 zktr235ja 1:)x;fpx3+tcs ot sfnce 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 resisc8 sd iowy,q9/tance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most nearl8cds,9owq/ i yy:


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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 circuq/ kqdn0a;hy sht- w20it shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagram d2/n;hwa sqhkq0-0y t
- 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 e7m k6anoc5aub su7jj9 *cb.*vlectrical circuit at the right. If the current in all three resistors is equal, which of the following statements mus5ja7 .s 7vbumk6ocan cb*ju*9t 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 re5jo94f+ bvihe5s j(ftpresents a simple electric circuit composed of 5 identical light bulbs and 2 flashligh 5ot(5evfj +fbsihj94t 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 statements is NOT true concerning the sim /8zk:asp5 shriwrc5 7 99megmple circuit shown where resistors R1, R2 and R3 s9rw79c5g sakm8 ph5m /irze: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 arlwfup)ih1l6/t2j 9q t3gt uk.e connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. Ifj .luf)tp /w1uh3 ki6tt9 lg2q 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 pass through the identifieu/, j)jwgc: i/dui wh/jki05kd resistor in 5 seconds once the circuit was c juiw/hu:gw/ j5iid kjc,k)/0 losed?


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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 da,anrud0j 2fu8 9vm) in the following simple circuit have the same resistance, which would dissip08mvu ,9faaj)d 2dunrate 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 cig5yy8cvq(bycqt qcu1-9w)a , rcuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What c g98wu5)bc a t-(qq,qyycv1y 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. Supp ph+fn ,2,dukhose 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 voltage across R,,n2h+ dphu kf3?

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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 andRsh4bgao4dj6. 7,yz.cis 4ref3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Wr6sofe hg74bc 4s4yz,i dja..hat 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 hrb 3pb/k1*rhthe maximum value of the current u3hp/bkr rh1*bnder 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 li9.pfq*8po7/ ub*pw quj qw5 ahghtbulb designed to operate at 120 vol7 h/wbjq pq*f5.w uoa* qu9p8pts?

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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( -eiuqs 7dn5 q-usx-v ohm resistor that is dissipating 36 wat7q-u(udin-sxs v5q - ets 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, d9*ht+ ktfqztv hj:,/ 600 watt.” In normal use, the curre , htf:*d+jvt h9ztk/qnt 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 resistances could NOT be produced by a circuit conc xubpyfw2h6l24; j)p/fpi 5ntaining only thpp/ up2lnw;cfh2 y jibf4x)65ree 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 resistors. Which of the following eq.mfyvtoz4ve5sk .m4+ uivalent revo .mym4f+4 .es5zvkt sistances CANNOT be produced using 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 differe6 z7 yp.4xkn2(;+s aymc2 sh- djlizuhnt values can be connected together in different configurations. If all three resinm2l- z76h4+s( 2uycyx pzkhsa .d;j istors 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 conj0 oz)e/oxpo:0t 889 axxs/ nhx ep9qwnected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are0aw/o/x9o9p jxn e8 texsxqz hop :8)0 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 connected in paral7uj c3 3 uvz6yvra*z;llel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is correcr ;vzlc*a u7u3 zj63yvt?

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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 suchp g4j)9s5 e +virn g7c)sdaz y*1q4szj that it has a resistance of 12Ω when operating at 120 volts. Wha 95 ss*z+7gnariqcs gy 4edj zv)4j1)pt 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 av p 9o pq axg3m+1xalfw,wz9/4 4 ohm resistor that is dissipating 36 wata1 powqz+xf wm9 ,a4p/xg9v3l ts of 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 amperes t2k5e cvy,qcpm-b(g8 of current when connected to 120 voltpk2mecvt gc8,qb (5y- s. 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 lzsc21e( 2anq 100W lightbulb lit continuously for 1 year at a rate 1s(qazcln2e 2 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 *cxrlx26 dvx2t*hf b+in a power of 24.0 W associa2*lc fhx2xb dx6vrt +*ted with the bulb. Which 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 rated at 5cv 9,o/ 9ev)v 7pffxsz00 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 atfx, cv9fs)7/pz ov9ev 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 resistors to form aexwh*d 2auvd0 : b fgyb)4p:rs1tox9; simple circuit as shown to the right. hvd0p trde2sb;x49w u yfb1g*:)a:o x
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 connefz(dexfv38;:0dhu*b/gn yi )hq b m:dcted to four resistors to form a simple circuit asn; fbqd/h bhv e*dz3uf)x(giy m:0 d8: 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 ideal ammeter, a switch and three resisto(aodc iw2lt1q(cfddz3j93dx; sm; 5 xc; s7ncrs are connected as shownw;qajd13 fd xsdc5 (9m clztoincs2( x73dc;;. 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, dvg v1lh/av4)0/nfsz dy1t/raa( 0 hgan ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagragn)as/ hd/vt1av 1y40( zd /lvfg rh0am 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 an.angg j ueol+.)9z 8gmd three resistors are connected as shown. Wig 9+manzgjle). 8ou .gth 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,ksf( g x4yca kqp,;cnbzwt-:iwzk0o 73v2,3b what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and allnw 3vk:-gx wa,;pciof,zcy k27b4 03( sbtzqk 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 resistancew x 7l*lvgak7. of the circuit shown to the right with resista *lax77wgkvl. nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fiv8pfqq:szhs)7m u.q6ztg r2x 2e identical resistors connected in a combination series and parxpt: f2q)urqq6 2.8mgh ssz7zallel 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 retq)o3 z: ujjl */vstx4mh6ss,sistors connected in a combination series and parallel circuit to a voltageq *s3,t mjlj:vshsz4x6/tu o) 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 diagramolj,vciaqx/- auwx80 fjx:gf i;w-y.o 0;k:p, all of the bulbs are identical. Which bulb will be ;u f- / w-xfoxxjco;ij:v.al:ygwp0, k8 qi0a 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 switch and three resistorjyy78h.ryul3zg8776aax *h wy r hxw5s are connected as shown. With the switch open as shown in thrh7yg8 xa*6yuh38h 5xywrl7.aj 7 zwye 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,dh7+hjbe m 2, lr97iim a switch and three resistors are connectmhe 9lim+b,rd h27ij7ed as 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 and three resis k72scbmp3mis6 p5rj3tors are connected as shown. With the switch open as shown in the diagram the ammeter reads63 ss3im krcpmb2 p57j 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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