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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 elec- c7pzm yvn0irqeb(;.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 resistor and the direction of the electric field through the interior ofqr em i7nybz0p v;(-.c 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 connd*+nah6aiqj+n bx m7qw 86n2o ected in parallel, the_________each resist+6 dnnbai87j 6xo2*awqnhq+ mor is 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 t c.w n5j fs8i*w7.i58brv ktq ;ej:fmlhe thin filament wire of a lightbulb causes the filament to bec7 wmfjb8.: vnfli; e t.swi8j55crkq*ome 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 r hml53zbq0 *pb o:r1fhousehold lights are being replaced with LEDs. LED is the acronym for which one of the followib3r5:bmr1*zfo qh 0l png 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,wc c 6tkf95zy*b2tgh 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 th9 h,kzgw2y6b* cc5ttf e 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 ofu f(weooe48z/0t. qav z;huy + the same material. Wire II has twice the diameter and twice thvq/z(a4 o;u.e8z 0ofuy+ ewthe 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 material but has twice the diam(. 0gvuy5 pgap2wev ,teter and half the length of wire X. If wire X has a resistance of R then wire Y would have epvw5,.vgt( u0py2ga 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. lax0p.c:f.lf7iqm x . This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to f apx. m0ll.xc q:7f.ithe 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 l ,:tzkdcvx3z5 )o6goxight bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lix5):d3xtvco 6 kg,zz oghtbulb 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. The lengt fqi5vo8vos8oa6p85u h and radius5oo uoip8f86a svv 8q5 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 resistorezyn6 aa .kuwtk3+y+7s, 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 conne ewaku3+ t.ny76+zaykcted 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 theda aee26.4 te3 bsou,l accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has interd,3 a4eao.e6l s t2uebnal 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 comp/euf.w 1aim:a ound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagraiuma:fa /.e 1wm
- 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 elecckkojr(bf+iqf (y6) d 7y- ti0trical circuit at the right. If the current in all three resistors is equal, which of the following s kyii(rc y7 o b(t6-0jfk)qd+ftatements 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 kr k*vfqba+aj 2f:yqwm9:4 yjum 0:x8represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs*:2yjvawb9u0 a8j4:+mx k yr:mfqfkq )
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 concerning the simple circi cuao6mavv6 :g)+o(luit shown where resistors R1,gu( lc a i6aoo6vm):+v 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 j bf g ch-xxd:6pv0wljp5p) 8;brighter than bulb ;b5pp8 xp6jxc j)wflv-g0hd : 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 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 coulwxm lvk9-f 9gg1o3xh/ ombs will pass through the identified resistor in 5 seconds once the cixv9w hg9l og/3mxk- 1frcuit 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 resih aa0 hs76oi(istors in the following simple circuit have the same resistance ha6o i07(hias, 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, th8 :gd-w;spgrpe current through the 6.0 Ω resistor is 1.0 A. What is the power su;psw:gdp8rg -pply 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 connected in se a durc lu1;-:yw41caeries 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 of : a4ue-;1wucyr l d1acpower. 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 R1cr8c.d e0jdhq:4gdayp,; k )w, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V :c d0 4y,jp)c8awqe;g.rh ddk 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 volncb(sv- h; (6t dh*yexts. What is the maximum value of the current under t(cts ;xhyvn-e6 *(dhbhese 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 atesn94xmf c h 3pm64g.p,9fo w 60 watt lightbulb designed to operate at 120 vot43homnm fs6 c,4f99eg .xpwplts?

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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 dissipa:pf,+i eedkm oo9.wjk b 9l(7mting 36 watts of fdi k, mw.boo( e9:lme7j+ p9kpower?

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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 mare/4kzotfh 1l68f16zh0d ly 1 u ppoug6ked "120 volt, 600 watt.” In normal use, the currenk/hd1 gpfhultez 1 uoo4ply0 6z68f 61t 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 folg c,q4g qk89eilowing resistances could NOT be produced by a circuit containing only three identical 6kgiec,qg 89 4qΩ 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.(pmp4 es )-oib0 Ω resistors. Which of the following equivalent resistances CANNOT be produced usi)p-(e obs mp4ing 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 c2/y j)csdao6man be connected together in different co/) mc2daosy 6jnfigurations. If all three resistors are used in a circuit, how many 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 connected to a battery, (7 hw5rk9th psa total power P is dissipated in the circu9w5r 7k th(shpit. How much 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 connected y178kr- z/)xmy. dlmpbsq rm- in parallel, the equivalent resistance of the combination is 5Ω . Which of /p-m kdr8-)b1ymlr ymxszq. 7 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 10)nkdl+ ro 1bpf/fcn6uub. )n2Ω when operating at 120 volts. What is the minimum amb6ok1uf )/n rd)fn+ c bnup0l.ount 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 flows through a 4 ohm rne,*u o gr51quq q3t,/ sy)vlgesistor that is dissipating 36 watts *uo rne s 5u3vyq/g,qg q)1,tlof 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 draw j lqt9o;2)sw*z(1tjw5djqxa w,lp -ms 13 amperes of current when connected to 120 volts. Iwl*t-92 pd w5;j(j wlo,qxz) js qta1mf the price of 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 cosv +k5kwe)no)3g 4ath t0:(-gym dtbgot to keep a 100W lightbulb lit continuously for 1 year at a rate of- gmk(kg3t n )0whd+t:ogvy4tebo5a ) $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 thly99yyws zd6,y ulax,62 n) durough a lightbulb results in a power of 24.0 W associated wityn 9l y,w, )6yua6 u29dylzdsxh 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 s jvex56jdaz*om h( q,*ix owns 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 operating at the sametim(*ox qd zjve*h6am ,5je?

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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 to6q/wrnihfy gp h/1 tgxjpd)6 y+c2 *r0 four resistors to form a simple circuit as shown to the rightjc0 2*q/1) 6+htipg /fryxynd 6pwg rh.
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 resistortj(1u wzzz1q 3s to form a simple circuit as shown to the (uwqz 1z1j3 tzright.
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 imku9y404f t 7 zc/kxzjdeal ammeter, a switch and three resistors are connected as c40zj ytu4z kmxk97/ fshown. 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 and three resistors are congv-m h0x,di ;dnected as shown. With the switchd,0-mi ;gh vxd 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 a0yi 9hi 6;v6jmeqg9:mbedvt2nd three resistors are connected as shown. With the switch open as shown in the diagram the ammvq;e:0my62gb6dt9j9 i h imveeter 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 is7ra+wx +cyky9 the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance R.y wr+a7 +kcyx9


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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.of akw vycz ,b13e2k6 to the right with resistanw,a2k 36.ev1zy kfcboces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 l3u1)tmv t .hn72 zot3cru3ym five identical resistors connected in a combination series and pu 2ctrvh3 .mo1lt7)3tzn3uy marallel 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 resis9 wpqpd pikvd+qy t/f/u9 43ddwu-; +ttors connected in a combination series and parallel circuit to a vol+ f/iu3;tw d4w+ -ukv/ dppdq9qtdy9ptage 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 identical. Which buo/gr ihecp8gq-;. u*ylb will be the brighteqp.eo-r u/8yg cih *g;st?


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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 batteijad6lpx0j 5)ry, an ideal ammeter, a switch and three resistors are connect6) d5jijl0p xaed 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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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/icv6t i t*i.f:qu:mp and three resistors are connected as shown. With the switch open as shown in the diagram th/upqm t:.6tfi: i*vice 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 resistorsbgxo*.qq*ex32m.l vl are connected as shown. With the switch open as shown in the diagram theg.el*bv3q *q .xx2 mol ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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