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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 currentpdh:k lzjwy2+h ld 4gfr* 0(h2 6jf/zmb6ius0 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 resistor?bhdf02myiwls /l6kj6f+d:* j0h z 2(pzgrh4u


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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_____(gc,d45sw w:gs gm v(k____each resistor is the sam:ssw(w5 cgg4 v dg,k(me.

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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 filanoe 7d*r *h-nmment wire of a lightbulb causes the filament to become white h rdhoe*nmn7- *ot, 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 lightso s -:m)yafftc yui z/0.,4uxy are being replaced with LEDs. LED is the acronym for which onsiym.x 0-)u , ytcy af4zf/uo:e 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-sectional are2housb .v)jql(dtjaj276k 5 z a 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 thsl2zkbu 65(o ) qj7hjvd2t j.ae 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 mewa, c- 2c9kwtj/)felw 2h lt+aterial. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resistaf9weewk/ltcc w-j2+,t 2)a hl nce

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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 of9mz9--x2elqexqf 7r5pb nt vy;f2ijsvzi 9/ 7 the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wir97ezz9sq7q2 -f r;9ib/pv5xx -nm j2tievylf e 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 radolgotj 1s o;+-ius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What lo; t-os1oj+g 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 to4x5 :lxpis *am make a brighter light bulb. He decides to modify tsxlpi:m4 *ax5he filament. How should the 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 same ma- q5dg( )ylvvgterial. The length and radius of )y5 gv (vg-qdleach 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, each of resistance R, are connected to a battery idno7 r3l) w)cyn the following way: “Two resistors are connected in series. This combin)wry)cl7d n3oation 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 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 th jl1 9tymfq-x0u2e8 nre accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.lj-u20nrxt e yf18mq9 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 h(7 oxa8 6:4kjhggycxbulbs 1, 2, and 3 - represented as resistors inhgxx87:4ac6 y(h ogjk 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 fzu v0xvitu84; - iwc f+i0n/xall three resistors is equal, which of the followin uxf8i- 004/vuiitnzx cfwv;+g 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 representsb;nrr/txq q/,4 *xjoz a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells./ r*4qnxbqj,;o zrtx/ 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 sq. cof82y xfc-imple circuit shown where resisyf8fo . cx2-cqtors R1, 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 braro w 94s/d(5mky.ydlighter than bulb Y.ldw94k .d 5s(yro m/ay 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 coulombs will pass through the identified re1or q:fjt3uh 55*oltgsistor in 5 second31q g*5 t5tfruol o:jhs 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 39 yne ocb8 cw.b t;zdv1j9yj b3nw1r, the following simple circuit have the same resistance, which would djn 9y.13etw9b v;bzb38 cwonj ,cdyr1issipate 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 currentfdj. : wh/0hbf through the 6.0 Ω resistor is 1.0 A. Wha 0fjwh:.hb f/dt 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..qm8uv bop,g-c 1bo-xfp icdy) ys3* R1, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0f1d-u - ,y.3 b.o)yv8gxpbqm *icpsocΩ, 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 R d0voj8qhs 11ql:l5rp1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3s1hpr 0qj 1vl5dlqo:8 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 th2z 0na/nqn2 hqe maximum value of the current under these nnza2/h n20qqconditions?

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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 watt lightbulb designed to operate at f;bv 5n tyzy 03uc.8tz120 volttf zz3cnb ;0uv.5y8y 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 dissipataz/ (b ck)*g f72gru m1skq;vqing 36 watts of pog1)k uvk2rsmq/* fc zb;(7ga qwer?

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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 prey0 8cim02g3y3n3r chr qff)ngss clothes is marked "120 volt, 600 watt.” In normal u3 i0ynr)8rfmgfn3c0 hy gqc2 3se, 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 fode 4fzo38.x4qcik4 htllowing resistances could NOT be produced by a circuit containing only three identical 6Ω resistocx e .4k84h zdtoiq34frs?

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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 following1 s6qlzw/ n*n/- rvqwf equivalent resistances CANNOT be prodf-nl1/nw q wrvs6zq*/uced 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 connected6n/rtsy6bn .6c7j, s v acc8cy together in different configurations. If all three resistors are used in a circuit, how manyc66 6rcc.8ctybj ss/7 v ,anny 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, a total power P is dis,nz,+yhzn m9 .z* alln0vt.f rsipated in the circuit. How much total power is dissipated in a.r9,*t,vz +mlnzl h0a ynn.fz 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 connect544,s d-v.htgl 7j orc2oudswed in parallel, the 2c .-5drs4t7os d,ugw4jhvolequivalent 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 o+ :q6 lxdwu+og vuq-d.q:o3 vof 12Ω when operating at 120 volts. What is the:x 3+v ouodqld:6wogq v+u.-q 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 flows through a 4 ohm resisto9f0)owkd 6iqdix p- y;r that is dissipating 36 wattsi9ik); fqw0 ydp-dox 6 of 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 r br 2awfb z 0:ve88c-rx*kz8.a)kg xjamperes of current when connected to 120 voltxb0 e 82v)xafbz*-:j8gr . zrkkacr w8s. If 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 i0+anj m:rky4 st cost to keep a 100W lightbulb lit continuously ay0krs:+4 njm for 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 cur w6 styj)bw)d7rent of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one ot)ybdsj 6 w7)wf 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 a computer rated at 500 watts if ,rm:u w6spz(-:cv1sd3jb2sw s(zi vn a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 am3fd:(im2s bc1v,zus zws svw p:-6rj(pere 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 rew- gqxj9,0mb evd/rp 6sistors to form a simple circuit as shown to the rd0w /q9vm,xg-pb 6rjeight.
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 simpleuwl i 9 br13m8o9hkn /7bxra)h*v oa)w3knm1v circuit aobivml9hk 7 )813/*wau1)hnob r n9r k3mxav ws shown to the 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, x n9xb8jo1r4 na switch and three resistors are connected as shown. With the switch xno9n8br j 14xopen 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 batteryz5zwyq*j z u05, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperq5zu w* j0z5yzes.
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 resistors .p 9+ lit0i vf.t: wt iw6*1eifodao+dare connected as shown. With the switch open as shown in the diagram the ammeter reai.*1wt+0:iiev+w 69 odtl. tpfi aodfds 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?nbi *lsl(w t92k6e0du Assume that all wile 0i k(2 b*6lsunt9dwres are ideal, 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 to theofpw8j5e* d e68d*:agw*qfo d right with resistances d**8:* w pwd6 o8ffeojaq5e gd$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 shopo: 97objwg vc)iei1am+ y8.ews five identical resistors connected in a combination series and parallel circuit :iw+v o 8p1ma)ybj.e7 ieco g9to 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 y9: p8cilik,w5tpke st+ 2eg1p 0 xm8ucombination series and para0:81e5yksx ttpwep2 u9, ki8+p lcmgillel circuit 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 identical. Which b4 x*utexr 4z8nyy 7,mtulb will be the b4y m ,e7 n4xt8ryx*uztrightest?


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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 resistors ar(mh(: r 2xj-es k5uut3q;r olee connected as shown. With the switch open as shown in the diagr;xlmq hrto3u (ue2 5k(e- r:sjam 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 and tsulv)1f06h1vf q ei s;tt+,-.piam zlhree resistors are connected as shown. With the switch open as shown in the diagrat+sf1i,lt0)m - peziq.;u6sfv lh1 vam 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 6g uwk:o:, ; na ;zj6iwjzahh8ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the hh8ujnz6,w ;k6zgo:w: j;a iaammeter 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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