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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-2;dw tj wnq yd(:,waj 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 and the direction of the eled ;-wy,j (ajw dwq2t:nctric 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 nco5j6 *d h3zlare connected in parallel, the_________each resistor is 6jnl* dzho5c3 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 ktqgx ;f-nd4zixu/ )) filament wire of a lightbulb causes the filament to become whi-)df uz /xxn kq)it;4gte 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 LED 3d2qgy cn9j4os. LED is the acronym for which one of the following chcdy4j3no9g q2 oices?

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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 ,p/xi3htjyi 3wk0ci9y l 3bl4t x,f.yhas 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 /3, yx3fy,xbht. tyilkilcp409 j3 iw1/2 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 the same material. Wire II has twita y5z iky*:o(g, 6bnpce the diameter and twice the length of I. If I has resist ,o:bt y*i6zygnpk5(aance 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 onkygw/esh9- 5d,t /zzf the same material but has twice the diameter and half the length of wire X. If wire X has -t,/ 59h szw/yzkngde a resistance of R 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 resistor has length L kg(:- a 0k(u0vhj:sc5u k+7lwswwa x qand radius r. This piece of material is then drawn so that it is a cylinder gq-a5aj0(k wsh7kx v( 0ulww s:c+ku: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 makahe*6m.ejy. f e a brighter light 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 aajhm*e y.ef 6. 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. The le9q+gqpy (,esa4pyg6b ap p1*angth and radius of each s6yg ,(b1+qpp9 a*paq4 g yaperesistor 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 conb5ar /*ye0xsx:xbab(tgc q6( nected 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 of four resistorsbyb q(50ac a gx(6r*x s:x/tbe?

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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 accompanyi -, k:6ryumms) fujkw o2ju:l4ng circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.0y4u2k:wlo6u ujrmk,)-fjs:m 0 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 three bulbs 1wrp yr.:36x cc, 2, and 3 - represent:x wcp6r r.c3yed 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 at the right. If the current in a7gdtug 2ih0jtkq3 y47xd7 8k6waa nv +ll three resistors is equal, which of the following sdgt2dn i 3vhx 47twy8kga+a0qu7 j7k 6tatements 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 reprei d/)ub9rjf v0kju:b3 sents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight ce0 rkfjbj ib3v:9/d) uulls. 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 ajb7x;1f2x58-fbt 2czp jzhaconcerning the simple circuit shown where resistors R1, R2 and R3 are have a7c1zf;8- 2z fbx 5jbxj ahtp2equal 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 lightbulbb*qr lziuo*uyhk h o7)813o: ns X andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elem o*uuh 8qn)yh:izor o3k1lb*7ents 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 pass through the identified resist2pr-92ffjlz-;hv8)n h p(t ux bwqos2 or in 5 -8)wqfvf l2nu tbph oh29j;zp s(2-xr seconds 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 th9sx a rf5-babx52g ;v(4fnp;jbhig6 ke resistors in the following simple circuit have the same resibxr pfv(5ih9sf;4 bj 6xbak; 52n-aggstance, 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 dia4pht5ci zh17bqsfi 4r,sn1d 6m ;m. twgram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply volp.hct1z wnmi shmb ;i64f,tqr 7s45d1tage 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 s0.5drsn fb, qneries to a battery. Suppose R1 carries a current of 2.0 A, R2 qfbrs0n,n . d5has 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 resistorpgqw; t oh*t6j:yo9 -;l, yypfs R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω,*toght jyfp; y 9,qo-6:;ylwp 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 iee-s7i +pt4.0 hnmnq ns the maximum value of t 0sp m7hn4nt-.+ eqenihe 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.guc+1c ( eixhr3fxr4 a 60 watt lightbulb designed to operate at 120 volts?uh3rxg+cxr .icf 4e (1

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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 resibzz5cf 8+x0b gstor that is dissipating 36 watts of pz z+58g0b xfbcower?

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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 ironcrz8d.z .mv d7 l/e:my used to press clothes is marked "120 volt, 600 watt.” In normar d c8mm.zy7l/ezdv:. l 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 - p3g(t5x7yc z w.be2ubaxcj(h)6vyccould NOT be produced by a circuit containing only three identic7-abwc 6bgj)xc( x5puy3vtecz (h .2yal 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 eqp y32zw2r t,(5x f org9.eg3;cauar djuivalent resistances CANNOT be produced usi(23g 5o a2a3ecjp9z y.rwftur,rdx ;gng 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 togxw *w6hz0+tqrf y:o /gether in different configurations. If all three resistors are used in a circuit, how many6qf *zw + g:tro0hyxw/ 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 resa33h4bnwx4d7 pio l.eistor is connected 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 are connected in series using the sw ip3h4e3nlx b.4 ao7dame 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, havinidnw5c/c h+ 0 +3z3stgz xqu0jg resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following530+c g u j d/3zs0ixznc+hqtw 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 12upsalm1a, qb;a 064-d2c(bp.yszhi yΩ when operating at 120 volts. What is the minimum amount of time that it would ;2 dq1 pm0csi b6ub.( s4yyh ,pza-laatake 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 thatz r+kah0 kst*tg-ck0 1jeve; +wiln), is dissipating 36 watts of)-+ r0nz*0hvlt w;+s akktike,egj1c 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 of curc,d9o:1 sdt6rgz zwc kkxu xx /41ha90rent when connected to 120 volts. If the price o1 cz,9 9 0:agkuxkxhdsr 4wo1x/dz6c tf 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 1 9pfrd z2pjvb)h2t/q100W lightbulb lit continuously for)pjh2pf9 r ztb /qv1d2 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 thr1ok * w7dse:xtough a lightbulb results in a power of 24.0 W a1 ot ds7kw:xe*ssociated 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 al4b1*khq 3yzy6 e*50bau(n uas dtrko2o s)w4 computer rated at 500 watts in a 120 V circuit. k w4b4 ao2)l3dtuoyke*r*sa qybu (z5s1h0 6nIf 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 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 for6rl)t ew,sua 18n.cart8nr m (m a simple circuit as showrumrase t )cw8 t8ln 6a1.(n,rn 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 battery is connected to four resistors to form a simple syg-l(4b damk - ;*jp6ayh2kocircuit as shown to the righsjp-2ykg( 6a;ao-ly4*mb kdht.
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 swv jt7 -3,sjksvitch and three resistors are connected as shown. With the switch open as shjk 7svs -3,tjvown 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,vzv sd: h1rtgh8 k.1s; an ideal ammeter, a switch and three resistors are connected as shown. With the switch k hgtv1v:s d.r1zs;8 hopen 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 resistor8qm -zi kr88kts are connected as shown. With the switch open as shown in the diag -i8 8rtk8kzqmram 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 equivalent resistance?z g-oj)v;wh8 ie2y*cm Assume that all wires are ideal, the battewm i;gve)8* joz y-c2hry 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 of the circuit sho+4hze5i w - sg/ix)e:s b,njhlwn to the right with resista54eb/s),slhx :jng zw+-ihiences $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistors connected in a ca )fat9e++m2i0t b kxuombination series and parallel circuit to a voltage sourcue+k9+ti0 x2a) m tfabe.
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 conm8knmaqv 6s ;:nected in a combination series and parallel circuit ma kv8n;s6: mqto 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 off lpkh. k45)a1wgrd( h the bulbs are identical. Which bulb will4hl)51rdg. fpkw k h(a be 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 re2vlbj 6 s)j.ubsistors are connected as shown. With the switch open as shown l6 jjb.)2 svbuin 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 swie-de-,u s2 xjwtch and three resistors are connected as shown. With the switch open as shown in the diagram thw--se exd2ju ,e 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 resika ,.cq (0-vshy88xcp px u6izstors are connected as shown. With the switch open asvi.sap(xz, p 86 kc xy0qh8-uc 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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