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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 elecord.z oz9ncky ; ,ci+,tric 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 rz cir yz9,,+;.nkcod oesistor 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 in parallel, the_________each d8 p0q9v+gyriresistor isrd 9g8yqiv0p + the 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 wirkfaw 9 y*xp+5ie of a lightbulb causes the filamen a f95ypix*wk+t to become white 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. LED ) pdvwih4ttorxt 3d 63ht )9j7is the acronym for which o)6idr pt7dvow9)hx4th tt3 j 3ne 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 05ne +czz+ynolength 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 ratnz0 ny +eo+zc5io 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 material. 1bz4c a8cwgr*+ r3zv *)qmg xoWire II has twice the diameter and twice the lqxomzcra4g3v )gc+1 bw**8 zrength 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 material but has twic hh3; 4u3zh(uwunbfc8/mgha c.-zta0 e the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistance3nc ( auhz;zmw-htc0f3ahu4.8 g/bhu 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 radiu ko2uilo d,m-1ds1y o*s r. This piece of material is the-dok1 s2 yu1,iom do*ln 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 light bulb. Hetoavw4jdwtc 5 ki7,b sp2 sp6+: /kqp0ien7,z decides to modify the fistp7bs+ nkw4 6opt20:ie a pq7k/vd, ,izcj5wlament. 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 made of the same maz12mdwwbvn; 2k 35l vhterial. The length and radius of each resistor is:ln2kbvz5 v1mh 2w3 d;w
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, eaf: z x5qh.,vwbgm lt(/pn0 wj2ch of resistance 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 o (h/z f.0wlw tvm5nxb: q2pgj,f 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 inte iyl3w/3ow,r8 )uayzk h yw-6qrnal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reaqwy6 /- u) w 3awz3ylokryih,8ding 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 thv9rpl0 pqbp*xb/ha; ,e right. The three bulbs 1, 2, and 3 - represented as resistors in /pxa q0rv;hl9pbb , p*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 electric 0p y.38p)shm9tyl filal circuit at the right. If the current in all three resistors is equal, wl0. smpp if)h 93ylt8yhich 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 rlryi9nx ,;z5 e2e;go gight represents a simple electric circuit composed of 5 identical light bulbs and 2 ;yonr5ez ,2g9ie;lx gflashlight 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 fxu 3j15gtn h6vollowing statements is NOT true concerning the simple circuit sho5nv6 3 gjxtu1hwn where resistors 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 conne8)91 ,ukfxx(iz masgibgw3)k cted in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY a8 (skgkimgwxbau )z,)1 3i9fx re 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 identifiefl hqdxcs82vj). cx):8mmm6rd resistor in 5 m)f8 x6r jcsh dqm8xvm. cl):2seconds 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 fp0kn6s:n:ng /6 h reacircuit have the same resisg0f6h/ns:nner6 :a kptance, 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 Ω resi-k +mo0kk mw 37)xgomostor0k gmkowko)o+7 m x3m- is 1.0 A. What 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 R32 23ljg re) ity,m.cei are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a jc)g, et32yil m.r2eiresistance 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 parallel to a b981r gmtdirq/l 9 cs8 2av;wixattery. Suppose R1 has 2V aclai 9 28wg;8i1vqrxt rs9dc m/ross 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 v7;elb17/ s1.ujg+qiggpuxe yolts. What is the maximum value of gq x7pgby /jiege;sul+ 11.u7the 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 resis0 li 1 ye(grzk*;4jybb2jn1 kptance of a 60 watt lightbulb designed to operate at 120 volrgki 1kb2p;j(*e4 znl 01yyb jts?

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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 throcqah:ixv es53+ 0 3urbugh a 4 ohm resistor that is dissipating 36 watts 3x50av+i be:cq urh s3of 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 us n +qs3;repyjmvgiru zexf3. u0 8*k05ed to press clothes is marked "120 volt, 600 watt.” In zmxfyr;s *rv5+k0j u q i.8p3u0g3e ennormal 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+,j fccpl2e1d .oux5y NOT be produced by a circuit containing only t jou,2fex1ydlc5c .p+ hree 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 equivaley c5dvetlot6 +ic,7+ 8ka7 omdnt resistances CANNOT be producecei7l58+ 6k, tacomd7d+ yvtod 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 different values c5hcy2j-at:eu1 ntek y 16l a jtbq0h(-an be connected together in different configurations. If all three resistors are used in a circuit, how many dif:21y6ta --haq0(telyeu1 tknbj5 jhcferent 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 g.fto5jqo-ouw;i .a. a battery, a total power P is dissipated in the circuit. How much total power;ut oao.qo-fg5w ji.. is dissipated 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 in parall oi+,rep: qya ajk)2z h/ws-9xel, the equivalent resistance of the combination is 5Ω . Which of the fa-y i q9azoehr/p,)+: wx skj2ollowing 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 eqid:rc9l7y ))1a*opnqkj r)operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water fralipr:q j1 y 7)9c *q))eokdrnom $15^{\circ}C$ 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 resisto k*q qnv1m6sut.v1o/ :dzbn:w r that is dissipating 36 watts of powozuqm:q/k:.tv s nnd 61*bw1v er?

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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 of current w7 yche 6opa7 2thb1pq7xc ; wn-ln)sc0hen connected to 120 volts. If the price of el q7)yc76c oelxc 207nw;1ap- hbphsntectricity 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,n rvb u)zge)h(77sn l it cost to keep a 100W lightbulb lit continuously for 1 year at)rgz7 ,len(7sb nuhv) 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 powgv 9-qg wm .v/ yjt17jiyv7l1der of 24.0 W associ1v-y9vyt/wqmj1dg g. 7v j 7liated 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 ,n9qgx d:cdr l ge16z-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 can be operr q dgd6ecn:9l,gxz -1ating 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 rm-74o egfs:6uegg.j xesistors to form a simple circuit as shown to thex4e6 g u.jo g7seg:mf- 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 battery is connected to fou 2iv5/ d1*/v1okhze lrb(yjf nr resistors to form a simple circuit as /*ro ike1b/h2 5nd fvlyj(vz1shown 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 idealsz2g(.q7 f.srd5a9jr d e swd +x5oah6 ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram th9o5s6x. ssza2(ewra ddjh+.r7 gfdq5e 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.4yzrntw( er+, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammetrrz (wy+4 etn.er 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 rtd 1z1/dx v;izesistors are connected as shown. With the switcdt 1vdi/z;1z xh 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 dp3m+m/w uqhz81 tuym,4 q gb7to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all p,/hu 87 mtqg1muy3 bqwdm+4 zthree 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 bng9pro/u 8:uof the circuit shown to the right with resistanc: poubg/rn89u es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 r j*y*( -gg b4mzuwn8swesistors connected in a combination series and parallel circuit to a voltage sourcujg bs-yn* wzm48 *wg(e.
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 if- gonvq6ocx 4u,tj4vy; np9 1n a combination serie-cq44o,9vvunn ;1fxgyp6 ot js and parallel 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 diag/p0 y sgpezw/.ram, all of the bulbs are identical. Which bulb will beps/ pgw.ey/ 0z 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 a* 2qa8i3hq) 0l qdv4vwq/ :7ufuqrrolnd three resistors are connected as shown. With the switch o 2fu)qw4 /vr8 70*dloq 3 rvqu:qhalqipen 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal batterx bp.,ob nv;yz1 2jjvb 69:+yqxk m5wqy, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeterq:n6bkvxj;.o +, y1 wy5bmvjbq9 xz 2p 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 tc i +-wpe:y- rdf 8.;lianyjv+hree resistors are connected as i8c-; e+prn+iyf -dw l:.yj vashown. 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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    总分:50分 及格:30分 时间:不限时
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