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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 resistor c *ougatw 0of*g4vwx.6onnected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction of the electrto4 wg vaf.0 w**x6uogic 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_________eac*(nvonm/ +h ihu2 :vv xrua95nh resistor is the sauxh (v5vu nn ma :+nvr/*ih2o9me.

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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 throurtp2aqd0g4a :s ,f.jdx ;3 ybmgh the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wirj,m :as2d pax 4;3gtfq0ydbr.es 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 repla*1k v2p hol6lq 3cn +1xetkvi8ced with LEDs. LED is the acronym for which one of thekvl*pe k1o6lv2i831nc qtxh+ 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 resi7 )f8e q5mkpohstor 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 )o5q78efkmp h. 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 2mu zlk4hp8j9has twice the diameter and twice the length of I. If I has rem 2l9u p48hzjksistance 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 hau/3qt+:ceou ks twice the diameter and half the length of wire X. If wire X has a resistance of3+que:c kt u/o 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 and radius r. This piece of mat/0 pia,su m4yv:y-rq g-2 y,naqekhm( erial is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because :rp- , ueh-kaaqyiygm4nvq ,/m( 0s2yof 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 4q. 4,-7anrt t zdv5qtvntz;abrighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make qvt;qt4dtar z,45nv- a z.n7tthe 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 zk8ofu*2;isxjvelj8 7. yfj4resistors are made of the same material. The length and radi k78oxj8s u;fej .4v*ylfi jz2us of each 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,) 1.w+ qqiquzv3,mggsq l. 9bk each 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 resistancegw)1 q s 9.umi.qzqk+,bl3gvq 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 as+ zp7hq(aw3s ccompanying circuit diagram has internal resistance 10.0 kW and the (3sasqhw p z7+ammeter has internal resistance 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 three bulbs 1, 2, vb15yh 28hmpfvskj. 3 and 3 - represented as resistovhs83v1 5fkpb. hm2yjrs 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 right5ailpqi(ca ys z 8yz 58q74ye.. If the current in all three resistors is equal,pyq5 e45qis8( a7izz y.yla8c which 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 right repr+;h 2 dv ;s .o-1+lnyvyq)je(jwea iplesents a simple electric circuit composed of 5 idenq)vvo+ l -(j lwps2i;e.+eya jhd ;1yntical light bulbs and 2 flashlight 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 ff) dbqcdc) g. 9):fwgrta 0aw+ollowing statements is NOT true concerning the simple circuit shown where resistors R1a0wqra df:9ctb. +c )dg)w)f g, 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 a battery. Bulb X is b plrgqn j5t6tz2)2o, nrighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to the o2qgrt,6z 5)2tnjln p 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 ut* fc/ 6;bm(h+znhx1:. uh4m yfoluz resistor in y/4x uz+fulo : zmmcbu6n1(; htf*h h.5 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 the resu,*uk( hexs fhg )-v;oistors in the following simple circuit have the same resistance, wh ;ok* ueu)gx(h-shfv,ich 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 rjxgiz 5+v0f0o7 jlvdoqg4+e; esistor is 1.0 A. What is the power supilezq vgj7xj0 vo5+do4f0+;gply 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 connecte(-xh fz h0fyjcl;pv:,d in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and h,;fjl0:vxf pz(y- ch 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 ao./nm1).y pon4b1gkbri 4t 3o5lhq e lndR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What ibt.by4lo5niq op)1le o4g.rm3n k1 /hs 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 f+e qwc)e :w*15kz v6bjmsp1 l120 volts. What is the maximum value of the current under these cze wwq+*16bk5ej:f1 )scl vmponditions?

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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 6ndeuty)8ftf: : n6 x:cu8 cau60 watt lightbulb designed to operate at 120 ucfude6:nu)6t: fan:c 8 x t8yvolts?

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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 resi +p sm9(ntz5r rcq,+elstor that is dissipating 36 watts o se9z+mt+r c(qrl,5npf 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 p9:gad8vv- eg rs1e7lw ress clothes is marked "120 volt, 600 watt.” In normal use, the current v-g v9sed :el81rawg7in 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 11 sdzdw;wxq;9lber5 5ueh) uNOT be produced by a circuit containing only three identical 6Ω resist551uw)u;9hr w1zed d ; qbsxelors?

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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. W1i/+5xs,kmc.6e 3kls x rc fabhich of the following equivalent resistances CANNOT be p1cc sk+f5ea bxs/3x k.mril6,roduced 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 can bec0-f f;s3f-m 0 yedjpz connected together in different configurations. If all three resistors are used in a circuit, how many e0 f -z3cjf ;ysdfpm0-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 conrfexshrwv2gl8r .i.n ,01rc, t1hi x9nected to a battery, a total power P is dissipated in the circuit. How much total power is dissipatewhv2xrrn1.tx,.rl 19e,0 8 gis fchrid 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, h:n mmu,ul * j(xnf)f9kw 4mql ubvf0,3aving resistance R1 and R2, are connected in parallelm:u jx,(qf,3wmk0f ullb 9n4)u*vmfn , the equivalent resistance of the combination is 5Ω . Which of the following 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 1zy*w xs:kpu8f s)rx8m,ll6 hje*5 0tm2Ω when operatin5*88) yp,mfwxzx6 :r0 h ums* tljekslg at 120 volts. What 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 flows3d ,it ((rfio55p( rzywt( g) km2mvmv through a 4 ohm resistor that is dissipating 36 watts of(zt3g5vi(f5r rv(t my (mpokiwm, 2d ) 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 draw4 tsshowcy-)y; 5 7ekvs 13 amperes of current when connected to 120 volts. If the price of el5s4w so-v ytk7h;c e)yectricity 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 )8q: ey kie*mwkeep a 100W lightbulb lit continuously for 1 year at a rmeq 8iywke*):ate 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 li:jdzahl.q 32eghtbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the dqah2l.z:3e jresistance 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 dj o.l5-no(nsay n8 ez39dc6lowns 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 can be od6 a-d8ln5oj.nn9 o3 yezsc(lperating 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 connec07xi6a0 pcla1ynp3 a hted to four resistors to form a simple circuit as ph0cpaxa6n3 l7yi a1 0shown 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 simle d3/xt )v -v6jeno:ge0kc) gple circuit as shown to the righ0j/: g )degxeovvet-c)3ln 6kt.
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 am/-wug13, pkvpln9:kk ns m,cfmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 aukpw9s v nlc-kfg,,:kn3 1m/ pmperes.
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 resipm2;ey3o3 2+vmxlm peqgy u2o+blr4 7stors are connected as shown. With the switch open as shown in the diagram the ammeter yqrm7empym23o+4x op +ugl v2b;32elreads 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 i mbb(ar*1hy ns72hm,/yy9 uj and three resistors are connected as shown. Wit iahy(h, bsj2my91y7mbn /*ruh 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 t 1mu: j+h,sovpo a,x :ts0uu8to the right, what is the equivalent resistance? Assume that all wires are ideal: a ,u:t+o0vt8m1pjso suh x,u, the battery 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 shown blqeuh +*3oiluc5 v1;nsr3k-to the right with resistarv;c l5-1bh* kuus3 e n+l3iqonces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connec4n w3r fr j/ q0 0o3oj,j;l*ckmpr5quyted in a combination seroq3mq,5 p jj*r0nu k34y0wr;l/ fj croies and parallel 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 resistors coyk:+fznp3zmvg.fou. h 8 i+l.nnected in a combination series and parallel cir.kfz :n3upo8lmvi . +y+.fgzh cuit 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 identrd f04bfgm1y-m 31aw aical. Which bulb will 3wgf-m md b01ayf4ar1be 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 resisto9+l7mgkb /aszfeu.sh2 59uno rs are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0u/h u9 2bz+af sm975og lske.n 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 inwzn ebno 4302deal ammeter, a switch and three resistors are connected as shown. With the switc3on 24nweb0n zh 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 amv0 -+qs oe 18ihcbmzv8meter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 z iv10c8v oh+m e-8qbsamperes.
When the switch is closed, what would be the current in the circuit?


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