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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,vhv 8mw4 ;9ia90lfadi: scrn ( an electric current exists in the metal resistor connected to the battery. Which one of the following lv8 vm iwsnf0id9:r( 4a9 ahc;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 resistof4x*2s3wb. gs m *-o(x y9uy0 pcxka)xeijff,rs are connected in parallel, the_________each resistor is t k9xfuex,*2y(ysp4 jg-ox3f*x)f asb mc0 w.ihe 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 thh lual9 (lya(wg:wsjm) 9yx. 6e thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becau 9wy69l a.u( ll ysamxh:gw)(jse

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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 r3 dxvqn7 b616wd zk-bueplaced with LEDs. LED is the acronym for which one of the3vwqxbu6-16zn dbd7k 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 y;lo c0v7qnvj2;c 5b fw8xtix )rx *7warea 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 ;jinv2) ryvx7;xcow btfq*wc57 l0x8 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 theq1(s6e blafs+s;pi)wq8 igz w1j d4+z diameter and 1+gw+b6da )ei 1zqjsf wli8pz4s(qs;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 materb 6)izz joyw5b:q04u:sw . kcwial but has twice the diameter and half the length o5) .ybz4jz si:w u6 :0kobcqwwf wire X. If wire 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 resiohd cz8p x,3.phfq+z+ye a3-istor 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 materia3yeh +hdoc p8q.za-p f ,xi+z3l 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 brightsga43 6omxz1dj /lb 4ger light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light a64l/xm gojbs g3d1z 4at 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 cylindr;m34cvm )q9 ifj bwqo/ical resistors are made of the same material. The length and radius of e;qjwb)v i 4/3cfoqmm9ach 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 in the fp8y 6rl,alc69ti50n3rq zyt following way: “Two resistors are conneccql5pl6fyt ,3 690 iyanztrr8ted 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 circuit diagram has internal resist +;amz 3w,rquiance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The v3zu+im a,wq;roltmeter 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 bulbs 1, 2, ap t/ytz t;k4-cx)b+d sldp6;hs2u s2p nd 3 - represented as resistors in the diagras;ux26 tts) pbyd;+ dp/k-c ls2zpht4m
- 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 circ7n0 l0rycvf m(1zldx 8uit at the right. If the current in all three resistors is equal, which of the following rndcf8 ymlx1 v700z (lstatements 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 represent.2s/ 9utrtg krs a simple electric circuit composed of 5 identical light gt/ ut k2rr.s9bulbs and 2 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 following statements is cm(i 8plo7j;x s+zx6sNOT true concerning the simple circuit shown where resistors Rmx +l 7sxs86pi;( cozj1, 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 cohu tga301jbo 9nnected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are a3o0tub j9h1gconnected 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 isc hsyz:x (k.4/6zamgdentified resistor in 5 seconds once the circuit was closed?xs4za.z g s/mkc y:h6(


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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 -uix;oruuv r2yuw0 (0following simple circuit have the same resistywiv0r uu; 0or2-x u(uance, 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, the current through the 6.0 Ω res dey :ia31h.og )-bwhgistor is 1.0 A. Whahag.yiwob-31 gh) d:et 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 connected in series9) 7-9rwy4 vd(q c3o dxpmkrvw to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, andqkrc3w do9vy 9x d4m-pwrv7)( 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 andRszmroo8 q /h*h5ov5*.lw m2tr3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and oomr* 52 z vth8lr hqo.m*s5w/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 is1:wed. 4r *kmsmze7t u the maximum value of the current unde rt1:z mume7*wk4d s.er 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 resistancm(3 q,+.rqkgf5sty zot4 w1tge of a 60 watt lightbulb designed to operate at 120 volts?wg(4q.m t5gtryk+to,s qfz1 3

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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 7 m coyz,3*7plx5gspz is dissipating 36 wattgpczlz p7y7os x 5m,*3s 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 used to press clothes is marked "120 volhc ,qd 9 9l/,yobjyvx3t, 600 watt.” In normal use, the current in itx /l,qcjyohbv93 y,d 9 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 couig;/2fxdc *0x- s dcufld NOT be produced by a circuit containing only thrgsxifxu c2f -0 *d;d/cee 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. l31xke 9ucg (nj sua*2Which of the following equivalent resistances CANNOT be produced using all three resistorsxg ue(n2*ac9kls3u j1 ?

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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 different8j*md*3x s . j. a4nmkzepxh0g values can be connected together in different configurations. If all three resistors are used in a circuit, jjp xnx 0mhm*3 8a.*k.4e szdghow 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 resistor4 * y *xmzkoswd1co2(w is connected 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 battery? Assume the internal resistance of tm4 yc1oxz **2w kd(sowhe 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 in prdxgxzqq 9ib1n63a,v) nev 32oi4wn 9arallel, the equivalent resistance of the combination is 5Ω . Which of xn wvz,qeir3 )3g6o bn9iv9xqad2n 41 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 pp-6g hiix22j(rft4 dit has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of jpgd-6ix22hpr(fit4 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 w(9lksedhq a; mn4ai9 6x8 tv,flows through a 4 ohm resistor that is dissipating 36 watts aw9,e6tmxa9(l8 qi vhn;dsk4 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 amperes of current when connected to r7yj z0hq5 zx-mx n,.hz43rr l120 volts. If the price of electricity is x 7 r5zhz,r 03.4rjzhxmly -qn$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 kee+r xyb-)p7opgt;) pu06umdn bp a 100W lightbulb lit continuouspb6up;t-yd p+0 n7 go rmu)b)xly 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 *x)tife/ 3efc7wuy* aj o),fb lightbulb results in a power of 24.0 W associated with the bulb. Which /au biwt)ffc)*of ,37yje*exone 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 aspzwl76riydc(r30zfw 1 , p9gt 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 computs 70 r6p9 dzz1(c,wrpfl yiw3gers 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 simpl.+khc 4qteef9: z hzug-ae +0le circuit as shown togzl:.+h kac -0+ ez 9eeqfth4u 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 simple circlw)a;)z b ny2 q(6rfjguit as shown to the rigz j2yn(l)agr ;qf)w b6ht.
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 switchseh: naxfq l0 ni1eny8 ,+:vl7 and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter read esylq xfl81 7:+nan0n: i,vhes 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 areg9f*;x qu828p dgsaqe connected as shown. With the switc9u d8gfqxaq2e *gsp ;8h 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 ares s2xvd0odg4xg0g 3e7a0( jhc connected as shown. With the switch open ase0vho0s4aj2g(0dgx gds3c 7x 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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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, wuqjai q)il1q,3w /xz5f/h h(brxqe :0hat is the equivalent resistance? Assume that all wires are ideal, the qle ,:q1xfbzwqu5a(0q)/iirh 3 jhx/ 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 shwww1v q9p. 3/t1wb2cu ak5 mmpown to the right with res1kqw 1/2 p.mvm 3tub9wpwc a5wistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identic2v6xbd (mmgiz+0.b 9 qlro)bqal resistors connected in a combination series and parallel circuit to a voltage soo 2(0+6mgrbz9 qlmvi.q bxb)durce.
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 belowj6hp 2) wo*;u7zlik bj shows five identical resistors connected in a combination series and parallel uj*z)2ib;k7wp6lohj 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, tecw ;gsa4,p0all of the bulbs are identical. Which bulb pg sct,0;aw e4will be the brightest?


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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 z-f(p hh cvxlo)e6 8ehm6g;h;switch and three resistors are connected as shown. With the switch open as shown68h hvfgeh ;;p clhmx) 6e-(oz 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 and three resistors pb k1bkj q5bvceng*p5j b0-6,are connected as shownq5-j6k0p pj bbkb*vb gn5c,e1 . 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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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 sfwr5svl: lyk tv13 h+7witch and three resistors are connected as shown. With the switch open as shown in the diagram the amlk1lv7 th5yvr:+ fs3wmeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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