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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 resisd3, jaln75koktor connected to the battery. Which one of the following choices best describes the direction of electron flk 53 daklnoj,7ow 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 connected inmusz./ : ynfi+et(kc / parallel, the_________each resistor is the sames:/.fic+ymt /ku ne (z.

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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 light2v8)ijd9twsq bulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This ha jd) 8iwt2v9sqppens 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 househ+gtf 5k3+nyzhe z.3 iax9y. xyold lights are being replaced with LEDs. LED is the acronym for w+a+gy.9yn ti5fky 33ze xzh.xhich 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 resistos1gja * uv*aeh;1pr8udd3aa(r has length 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 cgvd;d3arup( ae * j8a ah*1su1ylindrical 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 mat ha9gr9*r gv9werial. Wire II has twice the diameter anrar 9vgg*w99h d 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 ofql1,-dsvzqx cd e2, 1a 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 have a resistancedexs qd1,az- l,1c2vq 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 ranq7fm0n *d)zw dius r. This piece of material is then drawn so that it is a0dnf*) qw n7mz 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 brighte+ 4.nr7xxrtqb r light bulb. He decides to modify the filament. How should the filament of a lighxrtq x+n.7b4rtbulb 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 same material. dyd1 l,y*y1s7cvvb t6 The length and radius of each6sy1l*yv1 tbcd7d v, y 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 connected to a 0y lqy c pma*j1yq(8u*battery in the following way: “Two resistors are connected in series. Thisuq(ylm8c*ya 0*jypq 1 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 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 diagrp,ah160qy2g 5ba2:pwk/vrr1b gh fgeam has internal resistance 10.0 kW and the ammeter has internal resistanc6r,51fhvg: e1a awb/ry 2hg pg0 bkp2qe 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 circuit shown to the right. The .s hsfg :d.2 w7nhlqlpp 8e/,mthree bulbs 1, 2, and 3 - representelhne/lf7.8,2 .hsw:qps gdm pd 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 ap29 j5ycn9 hds7c(xpyt the right. If the current in all three resistors is equal, which of the fox j7p (n pdyc9y952hcsllowing 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 jvb 6i,jzbu05represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlighvu5j0bb,j6iz t 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 followek62: m gz:caling statements is NOT true concerning the simple circuit shown where resistors R1,2mk6c gl z::ea 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 a6d (hbjcnsj ;d9h)oes-g/* h,vnq +ga 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 one of the following choices bestsa;/d ho(bcjsj+g*)h h-9edq n6n vg, 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 coulom) y.m.(opvpko bs will pass through the identified resistor in 5 seconds onpo.p o)(kym v.ce 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 have the j.hfi0:wbt* dpd+c/ f same resista +di/.w:cb dfft jhp*0nce, 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 accompa ;vwytv,gk 62e/i;butnying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply volta;;e,vw ktuvi/ygt2b6ge 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 -4taguj3/mh1:bcr 8x)xumok in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resista j4m1)-a r:tbxx3om gu u8/chknce 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 para:ag+,5iix6 (*b pry tmco udb(llel to a battery. Suppose R1 has 2V across (6bbx p uy 5diit* (g+a,m:orcit, 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 volt4ea 07o sdbhzpv+vt,0s. What is the maximum value of the current under these cond0pz +7v ve,a4d bst0ohitions?

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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 l+7n2 . glg; pjhr;eted rz9t6designed to operate at 120 voltt r .+7;9 n hlj6dzgprgl2t;ees?

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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 resisty3;u ,noh d/fhor that is dissipating 36 watts of powerfoy/3d, hhu ;n?

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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 iy2r ku(hd. y lu1gmq tbj;n.32ron used to press clothes is marked "120 volt, 600 watt.” In l ht u2r2.bj(kym.dqg1ny ;u 3normal use, the 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 resistances could NOT be produced by a circuits5;t10 u (mfyua0mlc k6ei rk9moc q+/ containing only three identical 6Ω reske0ccy 0i u9msmrqla6 (ot5kum 1f /;+istors?

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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 thirre(c m lvwhf1x 7y/ju)0;p (ree 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all threexjycue;( r 0ivpl17h) wm(/rf 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 diffypso ma1dyj/1h f23.2omuz2 d 9lu 0aferent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resisy2dfa01 uf2h/ul 2 a9.mdm3pzyosoj1 tance 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 battem ( ;53hfnuhhery, a total power P is dissipated in the circuit. How much total power is dmf 5huh;(hen3issipated in a circuit 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 resistors, having resistance R1 and R2, are connected inz w.qmek( z7;o parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is corre .;mze7zqkw(o ct?

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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 desk gtk 0xz4i-mi7ac2 a1igned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it wg42tx - amk0ii1k c7azould 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 36(yp*9 m z9 mbt1re5xwd watts 9*yremx 9dt(pwm5b1 z 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 dra 9iiz,i w 4woahpte,c)m7x7bji25 u*fws 13 amperes of current when connected to 120 volts. If the price of electricw)2 ,wi4,ixf a h7bmit ou 7*pjic9z5eity 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 muchdbqw: 9- g5xj)y06w uhiv mzr9 would it cost to keep a 100W lightbulb lit continuously for 1 year at avzrqdj)ubw -xh0m59 9 gi 6wy: 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 cur:tyukuk:2 co s27vp2 it5 rs5crent of 4.00 A through a lightbulb results in a power of 24.0 W assortykiv s: :5 2 s2upcotu75ck2ciated 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 ownznt33 ri(iqvwe r*j d 7iq)*o+s 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 the computers o( it)+v r3iw7n eq*q3*i zjdrcan 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 t:w)( m : huh8lis0epgzo four resistors to form a simple circuit as(hpm lhwg)e: 0is z:8u shown to the 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 battery55i;lojvz8n p is connected to four resistors to form a simple circuit as shown ton5o;j8li5p z v 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 +e;mfld*w 6zm o vquw(4h24mr and three resistors are connected as shown. With the switch open as shown in the diagram the amf;2or6v umq+ w4e4h(ldmz w m*meter 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 resistors are - 4djyu t5zo96w .9(qkw1tkcx7kcwv vconnected as shown. With the switvk 1u-w4t69.kky v9cw5j7 q ot x(dwczch 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, m*;h v:j cpz,van ideal ammeter, a switch and three resistors are connected as shown. With the switch open as sz, ch*:vjvpm; hown 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, what is the eqz.vvm6 ry ;9*q l6dc)1 wpkb 9hs(ujzxuivalent resistance? Assume that all wires are ideal, the battery has no internal rejzbcwq6z.u r;sm)x v*vlk1(9dp9 6y hsistance, 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 of the circuit shown to the righq+l1tajl n,)md58 dzcb3xces, .jwp; t with resista.,n,5je zmxpd 3dcqbwa 8s1l+ ct;jl)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 uyo/- ,tpw(k,jji-/cli-bv v shows five identical resistors connected in a combination series and parallel cir (jw,-,-jlb p/ vuiiy-v/ktco cuit 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 connectedtt9/ e /dnr .j:4wql34z nurfv in a combination series and p.r4qvu e/jl9fr3 ztd/ w4 :tnnarallel 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 wfnzv7 :n5s )a4zz )suidentical. Which bulb will be the brigh) w: nav4ssz) z5zfun7test?


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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 resistors are coe8* vkhb zz ccbb5802fnnected as shown. With the switch open as shown in the diagram the 2z*bvfe5bk8c0c hzb 8 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 sw) dv7p*-p 2 d6awxsk8i (iyybwitch and three resistors are connected as shown. With thp7d-y 8*i yp)bv(w xw2a6idkse 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 resistor58jtnqdj xo+c p96) cis are connected as shown. With the switch open as shown in the diagram the ammeter read) +qi6n85ocx9jptc djs 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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