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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 elect 7. ko1xzhmeux,*cr-lh v*ka3 ric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of eleco k3a1.z,-xemvxcu7hlrkh **tron flow 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 in parallel, the_________eac(x./h8mpnyeo9euys:c7+yagz co b3 5 h resistor is ooecg9n a/p3(+ cs5h byxuym8z:ey.7the 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 wire of a lightbulb ccqq3en )67 ahn ntnv02auses the filament to become white hot, while the larger wires connected ttqn26 e hn0c73v) nnqao 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 ;as,gndg5v w f0u7 u6greplaced with LEDs. LED is the acrsgwg75;an0v g u,udf6onym 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 length L and cross-sectionlkc e 8hzp4hs *g;w:6tal 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. Whath48;hs: c6k*lpe wtz g 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 twice thev*lam3r op3ajhxr7d(e-c - 1zjr f45l diameter and twice thehfj1lp33l4rd(mrz a -ae-xjc*7 rv5o 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 same materias* 9l;e)jz c9 )far irqj2sf-ll but has twice the diameter and half the length of wire X. If wire ; zj2 rs*fjfs9elr )qca)l9i-X has 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 uz1tgw.; 1) vt 7hfdcxlength L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of thisg1 ;fudh.t)7wzx v1tc 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 t3q)f wvqcu 18co make a brighter light bulb. He decides to modify the filament. How should tc)1 cvqfuwq3 8he 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 sa)xi79c lsa8/ i6a lnvgme material. The length and radius 6i)9lsa8c7v ga/i xlnof 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,k+p k drwby5n,5/5ujf e/ d-pu 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 resistance of thd -de p5b,jf5 uknp/+wrk/u 5yis 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 cf;x1(duze 0kk(r:h u0e4 hql oircuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is mostfleuk u0hq(oz(1;:re x kh40d 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, acw)*k,x+k cftvdw); knd 3 - represented as resisto, tc wc)d )kxvkkfw+;*rs 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 thqrwv 9:q35g5k(rn cjis mq5)n e current in all three resistors is equal, which of tnqcng 5s(m 5kqj:iwrq9v)r 3 5he 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 ri+w 5 ep0fw-s unzo:4etght represents a simple electric circuit composed of 5 identical light bulbs and 2z p5tn- ofeus4w0:we + 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 follo w*ac;fe)d *i5okym5t wing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resim*i) 5y*ekdo;5f tca wstances?


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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 tvfb / r sshb3we-(n*e5o a 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 th(-v/bb3s h 5*senrefw e 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 coulombs0:2 hug3yio r(r 4qets7oepn 7 will pass through the identified resistor in 5 hiy7(oore4qr032e gust n: p7 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 resistors in the following simple circuit have the vur b1sg5n 0v4yl2tejkark4p; 2yr6 (same resistance, which would dissipate the greatest p6grey54k; n22rvkrt 104bs a ul v(yjpower?


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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 throughc xq:mk(ur j81 the 6.0 Ω resistor is 1.0 A. Wha(km8x 1:u qjcrt 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 connect ev 7( a-:r*pc-*lr cwsxf.tdted in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W --xrt*sfd(7rc ea.w*t pl v:cof 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 resistorz:,whvw a0k6h4at ik ;qw66yhs R1, R2 andR3 are connected in parallel to a battery. Supp whyka wt,kw q6 v6:hza4i0;h6ose R1 has 2V across 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 volts. What is the mav*tnk2v.j s:nximum value of the current under these condi.2tv kn* jvsn:tions?

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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 af5yzz32u+ vp5ua +fsb 60 watt lightbulb designed to operate at 120 volf5a3vuf+2uz+yzps5b ts?

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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 resistor that is dissipating 36 wa*apsu44 jfuw t03dz1xtts of po4j10d3*fup4t xuszw a wer?

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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, 600 watt.” 5q2jl: 3jm(o fy lci7rg)e5 epIn normal use, the currenjj)c pe 5 g3or7li(em2q:lfy5 t 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 b 8 3ztzxl)ovl(5( rtsde produced by a circuit containing only thr(tr3(odt vzlz)x85s l ee 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:.75 beyyfox rq7fmr hnb8)8 q following equivalent resistances CANNOT be pr7)yn eqqf. r75hx:8b oyrbfm8oduced 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 be connected together ikpfpr :-qq2ee g+4o)pn different configurations. If all three resistors are used in a circuit, how many different values of total resistr2gpe-oqk :)4fe+p pq ance 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 connef-n*u9 yy u3xicted to a battery, a total power P is dissipated in the circuit. How 3f i*uyxu-9 nymuch total power 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 rmr+)(t.pwo kconnected in parallel, the equivalent resistance of the combination is 5Ω . Whicr)tomw r(k.+p h 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 rem+h.fz /c (d dbe6gv5osistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to wdc 5o+d.m h(z veb/fg6arm 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(5yscr( mhj3f.i bt) rpol 6dy58kbv( watts of pcy)yhf5v6os(bdr8t jk. ir lm (p5b( 3ower?

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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 ofx-k)anloxp v s4l6:y8 current when connected to 120 volts. If the price of electricitn4vsopa ly xxl6 8-k):y 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 100W ligd dzwe p)-z;8bhtbulb lit continuously for 1 year at a ra-d zdzw8be);p te 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 lf3f. yvsh n;l a bee:()-s4udsightbulb results in a power of 24.0 W associated with the bulb. Which one of the following chf n (4;s3svyah:du.fsl be-e)oices 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 at9 ub .,kcl0fs m4wagye7z vw*; 500 watts in a 12*.0w,bvg u9 zf7;4ksya l mewc0 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 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 ;-lv*;(evk q.7y b8uxj qlqs sto form a simple circuit asv(lxq j 7 -qubyl;q8ev*.s ;ks 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 battery is connected to four resistors to formbco *b3yc,-ww a simple circuit as shown to the,cwyb3bo* cw- 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 resistors are connvo,3pm )ktpwto n3t/q5u3 gq 6ogokpu6 m5tvp/3 wq) ,q3tn3 tected as shown. 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, an ideal ammeter, a switch n d9m+igwa5i0 and three resistors are connected as shown. With t0idgwma5ni9 + he 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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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 resistorj(a:rssew u1 t;h*65pa/ gcwss are connected as shown. With the switch open as shown in the diagram the ammeter5s/( teg;*aws:spw1c 6uahjr 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 mmiez 94w 58ok shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have ide94 iz8eokmm5wntical 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 thezot): tv(o,v3pp1qcc right with resistcvp, p3(1t)qczv:ot oances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connecjvb+ w1-if r, rddz(7ated in a combination series and i7w+1ra-vj f(zrd db ,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 connected jt/:e z-lqi cknn3-b(in a combination series and parallel circuit to a voltcnb3zqe- ikn(/l: t-jage 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,e zdka*ib5cc7g g0g -) all of the bulbs are identical. Which bulb will be the b0za)gg5*kbic d c-ge7 rightest?


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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 resie oo0bsg hptxg )-)d71stors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperx1-o7) pgeodtbh0 s)ges.
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 switch and three resistors arqnm6q/9 2tclb aok w/og6s8.ke connected as shown. With the switch open g6w26s. qtnl/a9o qcb8k/mk oas 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 3ntgp8(yq )zpu1bu +znxi9a ,three resistors are connected as shown. With qzxnz9+13tu,8gnai p b py( u)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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