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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 in lhko,c b-y;icv :kxv8sr0j;5rt .xyiy( t9+ h the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the oj i.lv9h k (t8xyi: vc ryybk-c5xr;+,tsh0 ;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 arfar 94d,/ awiwe connected in parallel, the_________each resistor is th/wfa 94ra,wdi e 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 lightbulb causes the filake w9,j3y3vz ament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This akj9w3ze3 ,vy 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 are being replaced with LEDs. LED (o hrs.9aydn ;(fe om5is the acronym for which one of .e9 ro( ymh;o 5nsa(dfthe 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 arekx 32m w)tmqoem7g tw2y-d(7la A. It is to be placed into a circuit, but it fir2q gm)ty2ww(7m7d mto-k ex3lst 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 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 ma rtu ).cajb;bnszg3a ;p5s/i2de of the same material. Wire II has twice the diameter and twice the length of I. If I has resista2. 3jnsgt;bz5baa/s)pcui r; nce 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 oft ,6q3 :ajy7v8ivsc ps the same material but has twice the diameter and half the length of wire X. If wire X hqa:378sti6v jy scvp,as 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 resistor has ley0cg: b)fm:bength L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What hapce)g0b :m fby:pens 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 to make a brighter ldve72(u* nb pp:3riqfight bulb. He decides to modif2ppe:3 uv7b*friq dn(y the 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 resmmgay7; w6x( h.pi)pszu8jj+/jx m:fistors are made of the same material. The length and radius of each resistor ij:( w8.6asgi pm/y xm+up; jfxjm7z h)s:
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 resist 1*cjoc 0),wkk (gcbnwance R, are connected to a battery in the following way: “Two resistors are conn,0jwn kokc1*g c)c(wbected 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 diagramkck+ u,dy 4r;q6d+uaw has internal resistance 10rdya+d; ,4 ukkqwu6+ c.0 kW and the ammeter has internal 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 compound circuit shown to the right. The thr: hs6df2pgz+tcv s )o/ee bulbs 1, 2, and 3 - represented as resistors in thzd/g+)fs6s2ptv :hoce 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 a1w ;rq2fc-vz j*5 guldll three resistors is equal, which of the following statements must be trj;15*rd2 wvglzu fcq- ue?


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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 simplg zw/d.gmx9q( e electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (g9xg( mdqzw./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 concerningfkwul ; y/v8 uf0mc4k+ the simple circuit shown where resistors R1, R2 and R3 are have equal resistanc04wvl;8+fufuk yc / mkes?


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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 ej,o ukh)f x0/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 p,hk eo)0juf /xarallel 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 ide+re 9z mw;(n66go+ y e8lrnjnentified resistor in 5 seconds r+o6w9 nz;jme l6n(n 8y +ereg 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 resih4,k-d5bntfp as/.a wstors in the following simple circuit have the same resistance, wa 4 nbp/ks5df-ta,h. 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 accompanyi1)/ tf*tg8c hl ipk h:g,)9;/vzux yren ywp/zng circuit diagram, the current through the 6.0 Ω resistor is 1.0 A.c/tz )k / ;1 pglv, pieyhuw/:thxyn9f)rg*8z 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 connected in serip7kr, .tdxrp8+iat l3es 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 power. What is the volti tx3p 8rka+ .,pdrtl7age 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 ),v ys,r g a5ojzy,6zvconnected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What v)yyzgrza,o 5,sv6j, 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. zqnl 7:3rl/g deeqlt85 w:h b5 What is the maximum value of the cu/e8r b lzw e5nlhtq57: dgl:q3rrent 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 designed to operate at b);hzhtfiqlc ;.znjpb 4 w7 6(120 volts z; w (cq6tlbhpzb);ij7f4nh.?

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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 ldeqq zz6c93*-9ok 0gq9 c ovca 4 ohm resistor that is dissipating 36 watts of po9goz*d vco99q ql qezc0c36 k-wer?

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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 volt, 600 wattbu 3y4n9y akdrac0 fnkgwyn. c.8 0w:8.” In normal use, tcn9uw.y wd8.byk80f 0rkya nn4:3agche 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 could NOT be produced by a circuit n o 0q:4 fzmhy7j n4:sxpa,k5ccontaining only three idenacz, q:74:nfx05j nmykh4 os ptical 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.ghpj12yyq*p sy1z,m0sc)s - b0 Ω resistors. Which of the following equivalent resistances CANNOTphqmy jssp2g)1- zy ,1 s0*bcy 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 values can be coz 9-qhgh39kicco* kc7nnected together in different c* k9h7i ghc39 qock-zconfigurations. 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, a total powhmt vh5p 9j 2g(cnbrgp0 g5/bn::xt.gaua;3qer P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are conntcu2(q9.0pg5t hva;b mbg/rnjg pg:h :a3n5 xected 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 aniwkayujz(; 2 ) kkon;6d R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the re)kwo; ( nak2z ;6yukjisistances 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 whenz* j,atbgjx ;6 i)phu7u0 hr *wol3gx/ operating at 120 volts. What is the minitjarl*zoxu30*ib ;x, hu6)ph g/wjg 7mum 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 resistor that is dissipating gc7vy9n5 n/ug 36 watts 7ny9ugn 5v/gcof 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 d-ycp; l,nn*v(qj ir3hraws 13 amperes of current when connected to 120 volts. If the price of electricitcn( r*h,- pv;qyn il3jy 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 keyw ,s9 sfhy k/2w(pjc8g kyk58ep a 100W lightbulb lit continuouslks8wgkykc,8j (95/wy hsyp2fy 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 lighthbydp: d t7ws 6wg)0v)bulb results in a power of 24.0 W associated with the bulb. Which one of the followid0 sv )ww)67htdyb g:png 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 hc+qja c2z+a- at 500 watts in a 120 V circuit. If all computers are plugged into a single ci+a-jq 2caz+ chrcuit protected by a 20 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 c4zqr qg8b7(v s6lfi dvz(, f7a simple circuit as shown to the righc6 g(f 7v4l vdb8zqq7(ifrsz, t.
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 connectedd(b t;q bip6k( to four resistors to form a simple circuit as shown to the ripk ;q(i (b6dbtght.
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 rc0p yvtk)u//d,w65ole a-g t zkpc)9three resistors are conn c5-0eo/t9p kl))rpzc,dgk wu ta/6yvected 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal am h ;scj saw(u.hi qx10k ky3ei4k+3,tfmeter, a switch and three resistors are connected as shown. With the switch open as shown fkit(+0se a3y 4hu.;jc13k i q ,xskwhin 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, b2cd..zuoo p(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.( z.ud.c o2pob0 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 qi981sp)bsl/isz) k3vc1m w b the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identibb s3iis1v 9wzpc)8 qm)l1ks/cal 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 the right with zruwmy81e .riu xjx pz vmq/00o4(.w4resistaw.1purx/ euyj0r4xo40zi v(z8 .wmqm 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 rj*i lw q ;hu9d8jerk/n 3p3yp(esistors connected in a combination series and parallel ceqy38ukpw(n3i*p jrd / j;h9lircuit 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 resisne;5 bobp48p ttors connected in a combination series and paret obp4pbn8 5;allel 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 w pd5ym,n) z5wryy0(adiagram, all of the bulbs are identical. Which bulb will be yd0 )wmy rwpz an(,5y5the 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 switch and three resistors ar.0* v y87rxms*mjdr wze connmr*78sxzjw .rvd*my0 ected 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, a p*f:qpk1qji 5n ideal ammeter, a switch and three resistors are connected as shown. With the switch i5*kpqjpf: q1 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 am83drrfw e gby:ehe4p, *2uk 6umeter, a switch and three resistors are connected as shown. With the switch open asdbey:r3rh gwp,u4 8kee u2*f6 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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