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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 i a;ut, :ad9cpf gati29n the metal resistor connected to the battery. Which one of the followi; ,f:dgaput2 a at9i9cng choices best describes the direction of electron 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 paralpi1n-c/1f h:vtq9poy lel, the_________each resistor is the siqvpch1 y/ p9n-:o f1tame.

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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 throuaw(8)wp :whpggh the thin filament wire of a lightbulb causes the filament to b:)wpahp8wg w(ecome 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 household lights arepj13ajv: uyg2 (xum)n being replaced with LEDs. LED is the acr u3npxv (uj:jmg12a)y onym 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 lengt6v1ug7oqu1ll6 vv8um ;v m(c nh 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 oc; n1 m 6(lvvuq1lvuvgm78u6 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 the same material. Wire II has twi8v qisv, s le3f1cbey;bwz) .be-4*ntsixl3+ce the diame)l;b4 isys+8 3z xe vclne*.fwq,31eb- t vsbiter and twice the 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 b m+vws41 qfa+dut has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a re 4++ q1dmawfsvsistance 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 res 1ygp g)5mcv882yflg xistor has length 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 this material because of this process?1 28cf lpxvm5 8gy)ggy

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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 +5-4rxy lrltawants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb prod4x 5r-tl l+yrauce 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;ikg:qr vhf j fn/5rp)q6dr*3 made of the same material. The length and radius o5kr qp:r*) f /idrvj qnhf;g36f 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, each of resistance R, are connected toibmnvaq c if5.-ic6k 9p: 9l:v a battery in the following way: “Two reslv::q -6 ciif.ipn9 5a kbvcm9istors 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 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 ci (84 zl0 un:oyd62w0cljbd yparcuit 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 c08pwoy6:bu ydz4 a 02nll(djreading 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 co89p: f*r13v fissmwyb mpound circuit shown to the right. The three bulbs 1, 2, and 3 bvf rmpy:i893s w*f1s- represented as 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 hqa5k/+sp a+:lnk8 z ecircuit at the right. If the current in all three resistors is /naq:zl5peka+ ks8+hequal, 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 represents a:7rcj yz 3uf2arl20vz simple electric circuit composed of 5 identical light bulbs and 2 flashl2yfz r2jl v73r0:c uazight 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 statkgc09 df/ fbc(ak 6w6rp1r2inxu 65tcements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistances?a2kd0c1b(g c56c6ktwi6r/f pnu 9 xrf


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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 and gce/tf0 cmn5pfgvy7 q )q0y3 yk-wy15Y are connected in series to 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 the same battery, which one of the following choices best represents whaty n1w-fepcy)c y05q0ym7 /gq5v3tfkg 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 pjrpn7 ;pf/ jhv,cx;w :ass through the identified resistor in f /p7: jvx,jnp;wc;hr5 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 sib2ezwr3459; cm6v9ogew intq mple circuit have the same resistance, which would d; r5c9v tmzi3w6nb 4 2qowgee9issipate 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 accompanxtu9v gk1/8-lu9.gn eyn dsa )ying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply volta xluna1us gg)y/89. kvedn9t-ge 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, R ka+pb)zm 7x1vs(*zrb 2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.1ba z7)k*vb(x rz+mps0 A, R2 has a resistance 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 ryz 5lxrr o,z1(gn g9j9)n5plu esistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 x5u j9rz( rglzy5,l9ogn p)n1has 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 1200fpnyx2 2vd/,0jryc6h7d 7 civx7 ml;x watts and 120 volts. What is the maximum value of the curvylx/27r7 d n; d2fipcmcxvjy0x 67h,rent under these 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 a 60 watt lightbulb desil i3-0 5pnm aepg-9ffkgned to operate at 120 voltsfip9 3n0mp g-fe-k a5l?

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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 r p ug)yj-;ko s * h/xr-wf*j83hbid5ge;hwv7desistor that is dissipating 36 wattsf)rwsuiv8;/d5d ojg*k p xeb*j-3g;hw 7yh-h of 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 u i +q,gg/vax8jsed to press clothes is marked "120 volt, 600 watt.” In no qv,ga8gx+ ji/rmal 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 following resistances coulv.8 0son 1lqr2draa.8y fgfw5 d NOT be produced by a circuit containing only three r .la dvfgr801syaw28 q5nof.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 s e yjr/6,e);mjn;0*qlsjyje6vz ts24wa. hk. Which of the following equivalent resistance4qh;/k)m 0y6je2v z.eerjsw,;ltn a y*j 6jsss CANNOT be 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 different va-jyqb( nyub was3f:/ -jx)i3slues can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be pr)bnbf -wsi(xsj 3u/ yajq: -3yoduced?

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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 cmpd/6u2 zr* qi8p:wqgonnected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same bat:pq2z 8/wiqm6d g *uprtery? 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 resista.xx1m, fzd)ten s08uyeb+a /ynce R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements aboed yf,ay mx0. )n8su1b /t+zxeut 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 12Ω wh -ie/y) 2b:glqnv;hqden operating at 120 volts. What is the minimum amount of time that it would teq) ; n:2hiqgylb-d/vake 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 fe zpz s495qy fn6y5eq0lows through a 4 ohm resistor that is dissipating 36 watts of6q59 q4zny 5yeps0ezf 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 hea1cx.4:lis vs02qsx rua:z * fgter draws 13 amperes of current when connected to 120 volts. If the price 0 zlgi1f u. *4vq:rsaxsx:s2cof 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 cost to keep a 100W lightbulb litp4in gulw7131ya yp ,v continuou1wu ypnaip3 vgl7, 4y1sly 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 current of 4.00 A through a lightbulb results in a b1w f is38ddrm-ej58d7kq 8dj power of 24.0 W associated with the bulb. 8 f5sk mdjr1jed783 d8dw- bqiWhich 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 six owns a computer rated at 500 watty+-cngql8l,imf(w )g s in a 120 V circuit. If all computers are plugged into a single circuit protected by a -,y lwc(+gm q)lg8ifn20 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 to form a simp aobjs92feqn-n hmp;+*)o u-yle circuit as shown to *fn;y j-uosqean b-o+p2 9hm)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 jb b /2g h +cbil)wervd7*x1-+rtas 3jfour resistors to form a simple circuit as twi 1aebr*+-bx+ hl 7jc/rd bs )jvg23shown 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, a switch and three resistojzr 78ygpjjh.5t :(zvrs are connected as shown. With the switch open as shown in the diagram the ammeterp .r8ytz jgv7 zhjj5(: 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 resistor 1e5eit plp2c(s are connectcelt1 25(epp ied 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 switch and three resistors are connz. xz:d ap0nme94xgp7pcg3,hected as shown. With the switch open as shown inp74d0xz:xcpzgea h 9gm,.n p3 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 c cic8nood :at .iq*00to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resisocicn .0 i*t08od:aqc tance, 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 resi3k14b ngbbkm u p4*-aqstance of the circuit shown to the right with resiu1bg4kk34pm -*a bnbqstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 bv cx/bbos32g +elow shows five identical resistors connected in a combination series o 3b2cxg/bv +sand 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 repum4x9 a0 cf95m(gex)tw fs *zsistors connected in a combination series and)wa5e 4zf*x 9f9(mptxumcsg 0 parallel 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 ar x wfy3)+y )jee70wchie identical. Which bulb will be the e3jw0c)yeh +7)xiy fwbrightest?


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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 are contl spbgy 1l*bj6 -g.u-nected as shown. With the switch open as shgulb*-j 6b-1tplgsy .own 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 ammet adier ;d4v+w,+bg8 ilb1og ;uer, a switch and three resistors are connected as shown. With the switch open as shu,alv o;;1+wbid+8irb4 ggd eown 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 tp:ge3.ye 7-tf)hriz jn+s, jand three resistors are connected as shown. W+p:g. 3f j7,ijesttey-z)n h rith 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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