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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,yki91( r4ahsyc s hnlqi 14fnr*/+c;n an electric 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 of the resis sq h r;sk(c +in9ic/*f1hr1ly4a4nyntor?


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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 cq3 egsnmax m6lh.r. o 49v:do.onnected in parallel, the_________each resistoogvmade.s: omlnr9 ..xq4 63hr 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 the thin filament wire of a lightbulbykx9o7yb(4o/ y p 9wra causes the filament to become white hot, while the larp47r/ y9b(o9xawko yy ger 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 b+hmrjzs5 m:pmz 5r* 9household lights are being replaced with LEDs. LED is the acronym for which one of the following choic5z+5m: m br*zpsrhjm9es?

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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 rm2++l (zb ojrvesistor 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+ 2rmv jo+(lbz the new length is 1/2 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 thevyh2gicib26hxxdqv *v 02z*: same material. Wire II has twice the diameter and twice ti6i2bg* vhqv02:yhvxx2 z cd*he 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 g6(4ng-p9jwurx gr3 j material but has twice the diameter and half the length of wire X. If wire X has ggr9x u4( pj6w3j-grna 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 and radius r. This piece of matug35i-k y es7werial is then drawn so that it ysgwe3-5ik7 uis 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 +m )jw:3fncxgwants to make a brighter light bulb. He decides to modify the filament. How should the filament of a )3cjwmn +fx :glightbulb 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 materi6bb3huj h,7hual. The length and radius of each resistor is 3bhuj7h,uhb6:
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 off4tsfhga9g c*gb+2i9 wg(a1g resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination a (a gg2tbhci9f4fgws9*g +g1of 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 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 internas1 mjpa5y)39 v+f)j vojlil(jl resistance 10.0 kW and the ammeter has internal resistance 25.0 9vjo5p(+m l)f1a3) jj vsyjil 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(bq-cd6 st8tw5ez,e;d0um iu ound circuit shown to the right. The three bulbs 1, 2, and 3 - represented ae mw5i ted -z;q0b(6dsc u8t,us 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 all tyus7 hqh 3t2p4q tp2f5hree resistors is equal, which of the 75h tus3hyppfq24q2 tfollowing 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 represents a simple electric circui7ogx 52h2j2c7lhtt 2yex5 fl ht composed of 5 identical light bulbs and 2 flashli ol g 5c25h xty2j27h2e7htlxfght 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 following statements is NOT true concerning the simple snije / uxbkhtv2 0a;q1u*i75circuit shown where resistors R1, R2 av;ti s/j5n 0 qxub1a*27 kuiehnd 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. Bul(o)uhhz a j f4zk(k15ztcn5 .kb X is brighter than bulb 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 wha.h(f o u4kz(tc)1zz a nk5khj5t 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 resi9g lm6p3ar cv2stor in 5 seconds once the c9a 2v6r3c mlpgircuit 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 simpjy6h gw(cgk cqo-9q *0le circuit have the same resistance, which would dikg0 y6oq9-*cw (ghj cqssipate 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 dia -2x,)1ls*ykb f2 mju e9q3 ephuxt6dagram, the current through the 6.0 Ω resistox3*sfjlx2,tu2keap1d m yeh q) b-6u9r 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 R3 are connect q64pmoqomcjr;1-j , jed in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resista1jjo-m6qco;j4mq , pr nce 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(aog z)agt80 x( jzie2x5i-wi/es m/w to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W.axw(g)taiig/ixz m5z /w(8e-ojs 2 e 0 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 c)at3a(kofhzez 55b * is the maximum value of the current under these co)z h5fc za3*a(b to5eknditions?

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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 60 wat/c/+l8yoos ymv/ c0 tct lightbulb designed to operate at 120 volts?vyt0l y ccso/m/+8o c/

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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 w 3191eql-u+ji zgrlebatts of pl9e311lq rz-ji+ eb guower?

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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 ticeya9z v/oy4- r3 pv( 2+ereco press clothes is marked "120 volt, 600 watt.” In noe r 32ie e4yy+c (vpvzo-9c/arrmal 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 followi6k:b ogx/b*3of1(tbg rmlg*qng resistances could NOT be produced by a circuit containing on(lo *:3f g6* 1bmktgbqg/bxorly three 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 or8dw gd. z+ycbhb.f2- f the following equivalent resistances CANNOT w hz2fyg-..dc8b r+dbbe produced 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 diaw p u.fm3e30mfferent values can be connected together in different configurum0m .pae33 fwations. 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 reei5ei26m de 1esistor is connected to a battery, a total power P is dissipated in the circuit. How much tota2e615i eimde el 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 resistorsvuq5m)glpb / 8, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is cor m5p)vb8gqlu /rect?

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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 ofb*-vo 3 cxx.vj 12Ω when operating at 120 volts. What is the minimum av.3-j*xc box vmount 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 resistor that is*6l*psq3fzn x lkv n7/ dissipating 36 watts of powerl 367splqn zk/*x v*fn?

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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 hexbk3,i r us0(3:--dtv zvydvd-(gv rfater draws 13 amperes of current when connected to 120 volts. If the price of elect--vyv0s(tir3vrk z : (,xdvdug3 -fd bricity 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 tttf 0dt+7h1*pulcxo7o keep a 100W lightbulb lit continuously for 1 yea hd7t xt 01locp*+ft7ur 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 through a lightbulb results in a power of 2ysp55(dju ujh;a+ xq 34.0 W ass5x 3(uajhqspy u5 j+;dociated 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 yl53qmsj4vgv 55kc y+family of six 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 maxim4gy+qy5j sc5 v3mlvk5 um 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 towqrrgo../tyy9oqe8 / four resistors to form a simple circuit as shown to o/ grt ./.eyywqoqr89 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 simpl b cw9;rjvqx38e circuit as shown to the right. ; xr 9bqcj38vw
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 resisto+ /1o u5qgfoxurs are connected as shown. With the switch open as shown in the diagraugox1qf+o5 u/m 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 idealohv68t.:dsp;)qu n :h:bnmb w ammeter, a switch and three resistors are connectenv: tonub:pw)h 6h.:8;qb mdsd as shown. With the 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 switch1kdwk8-j ) rsehr3( vq and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter 1sv r wjk-()qr3dke8h 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 th(3jc 2d,w*j escaabj 2r*hz .ke equivalent resistance? Assume that all wires are ideal, ware3 (*cs,dj .k z2jj*bhc2athe 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 9.as qt;(p mnmto the right with resistaan ms(pt9mq.; nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 rjo,(*bbx,v h pesistors connected in a combination series and parallel circuit, ,*b(bphvxjo 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 in a k:lsqk5n:bi 8gr; b6v combination series and parallel circuit to a voltage souq:n5bil: k 6r8skbv;g rce.
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 duin t;u)sd ++5iv s1gjiagram, all of the bulbs are identical. Which bulb will be the bru51ug v+ t+ dn)i;ijssightest?


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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 idrdmq(*0 d5 haieal ammeter, a switch and three resistors are connected as shown. With the switch open0a(i5 drhd*qm 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 lzj* xgs6eg.+ switch and three resistors are connected as shown. With the switch open as shown in slg *.6 ze+gjxthe 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 ammeteh :cmxy9) 4ams6i ge4lr, a switch and three resistors are connected as shown. With the switch e4m)gmxlsch :a i4y 69open 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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