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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 the metal p8tl+lit ns. h zggec6+;g)-q resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor acg li.8 +h6qtet gn+zs)-g l;pnd 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 co+,erzi x sge61nnected in parallel, the_________each resistorezs,e 1ix +r6g 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 wir .k97mx24 bp7yl/u l 6af)srncoyme7 ce of a lightbulb causes the filament to become white hot, while the larger wires connected amc xu 6l2p.enc4os/fl77ybk9)yr 7m 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 are being ref26pm v7gvl /i1ey/lvplaced with LEDs. LED is the aipl6/e 2vylm/ fvgv7 1cronym 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 r(ghd5p7mx0p(b+kg xd6 q4 cw 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 the new length is 1k7g+d0p4wgbdm(px (hc q6x 5 r/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 s wflakzqq/cq(. 7m91x7 -gidhas twice the diameter and twice the length of I. If I has resistance R, I (z9cwm df aqsi-g7q.lx7/kq 1I 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 materia3cvwbyg awh0* du2)z2l but has twice the diameter and half the length of wire X. If3b)yh2uz0d2a wgw v c* 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 resistor has length L a( pi,p5 +z2 mfm,eykxund radius r. This piece of material is then drawn sezi,,52(x+fkmum yp po that it is 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 wants to make a brighter light bulb. He de1zm. eu47zvcg2usd2 icides to modify the filament. How should the filame12 zmecgd2v74usui. z nt 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 resis:jyelp( eu3 r;tors are made of the same material. The length and radius of each resistor yrj: l3u(e ;epis:
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, eace9q4c5l yr launqr /,5h of resistance R, are connected to a battery in the following way: “Tw9ryu5/lrnleq,q4c a5o resistors 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 circuit dix/ c h;,dme5hfagram has internal resistance 10.0 kW and the amme hm;cx,/fdeh 5ter 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 rigxfyh,zc,n hc8; x6axhe+d m2)ht. The three bulbs 1, 2, and 3 - represented as resistors in the di,n; fch 8ad,x+m2c hhzyx 6x)eagram
- 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 fxv-dt s5h,i ;current in all thr f;,ds ivhxt-5ee resistors is equal, 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 simple electric circuit composed 2qr 69pwo gt4pejf 8f5of 5 identical light bulbs a5r efp68jfpg9wqot4 2nd 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 followin 67dwef ykm)o2g statements is NOT true concerning the simple circuit shown where wo6ky ef) md27resistors 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 batv c/muz;a+wa 5tery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY arzmc 5va +;awu/e 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 thgfo l30g1 cv-nfxjwt ai/+t6 /e identified resistor in 5 seconds oncet o-ij g/gff n0vt+xla/ 631cw 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 r7:v y 2f lq2r(h7lcy.r1wibi;a cd5pdesistors in the following simple circuit have the same resistapla:br.y2vl7h 7c c 15id2iydr w(;fq nce, 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 res2a4m:tx ; inobistor is 1.0 A. What is the power suppti2;bm a4n: oxly 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 3 ld81g7x r vo*nv/zjdw 6h0fhare connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a l 1d dwn x08rf/vv73gjh z6o*hresistance 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 a*0s,vic/bu mm mivdq4h+,9 kendR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W4 ,mu9im0smbk evv +/q,hc* id. 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 anda1x atm9:cd2.vf0w sia1 xh ,sz7u* nz 120 volts. What is the maximum value of the current undem uc1x:*0vxdwn9.h t a1s,2a 7 zasizfr 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 wam5t7c6 *ga v p/idi5vltt lightbulb designed to operate at 120 volt57v pcig 5*idv/ma tl6s?

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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 th7,o hy y4vba9zz twt,*at is dissipating 36 watts y9v4zyb*tah zw to,7 ,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 m:lmj9)nz c;fr*b iv) is marked "120 volt, 600 watt.” In normal use, the current in 9b ;nm*cj:iflrm z))v 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 prp jh- e(4q9d k 4qk fixqo 6rdbt6et)j4yn8)*goduced by a circuit containing only three id6r*89-d4y jt4hkjbq4fn q gpd6it)eex( o)k q entical 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 g2rz.o (swquw*)*p eac ew(9y1.0 Ω resistors. Which of the following equivalent rcgyww z*) w rasu(.(p*2qo9eeesistances 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 values can be connected together in differe : ip-diil+:o/amtr-wnt configurations. /:-a ir +mit-odliw :pIf 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 connectedroy y( b:.zude 9qow./ to a battery, a total power P is dissipated in the circui9dr/ ob wy:o .qe.yz(ut. 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 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, havinn 6sz )wpb(0 wiy/,t l.ocp3mbg resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination islzs/.0nipb pby3co6 wm t(, w) 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 ofvvcy:n50od 0ed5 ejx0 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45:0ojv5 0dv xen0dy5c e 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 36 wamd7 4rzn+*1pa 5k)fqd*c av7u)2 lrvwqg.zeqt4wk +rqnedma2rqzlg75.cp1 q ud 7fvv )a z**)ts 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 cltq3o i e1*c8 .rxn2wlonnected to 120 volts. If the price oie*o38rc.x1 lw q2ltnf 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 lit contaj6e 4-vxvn:d inuously for 1 year aj- vdv n:6eax4t 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 f p:f) g1: /jkrdclm m1ch*;rrof 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the ligh) d;:1f f rg*rl/rm j1:cmckphtbulb?

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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 :qdq9a g6cq) :uef* nocaiv9;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 maximum number of the computers can be operating at the sauf: ;ig)aqd v 6na c9:oc*e9qqmetime?

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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 toticv/ko/*,t psry 1r) form a simple circuit as shown v1rs*ri oc)t/pkt, /yto 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 c v4cy0tzu6gpr 6a 82qionnected to four resistors to form a simple circuit as shown to the righ z24rivy6t 0acq86 pugt.
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 resistors are cohbb9+ n,*6pk1a7ed t5v keiur ,(vya xnnected as shown. With the switch open as shown in thh1+ev k *k,xbu7tv aed(9,nyb6ar5i pe 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 ammeter, a switch and three resistors are; j h,67 u6xxotebth/8lv+yfa connected as shown. With the switch open as shown in the diagram the ajty7uhet6x f,h/v8 +l ;b6oaxmmeter 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 cvv 16oc+zt.w dhhpf(jvo2 4z6 onnected as shown. With the switch open as shown in the diagram the ammeter retch v6f12j4vzo(.vpz +dh wo6 ads 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 rigk9hbp5d- l (ohht, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have 5hdoh -(kp9l bidentical 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 cikw h ,bu u43cf(b.rxxts/mu 8use5w28rcuit shown to the right with resistances x w u4mu8u3/ x(25chbefr. ,wutbs s8k$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identiv 6gy8b8 31te l:kauavcal resistors connected in a combination series and parallel circu:yb 16gealvak8v 3ut8it 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 shoymswmk ,;9tcivb5uj/ps6 k 40 ws five identical resistors connected in a combination series and parallel circuit to a voltwissk; 5yj/m 4 9vbucmkp0 ,6tage 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, q ;m. jrs),cuuy 57cuhjh: p8uall of the bulbs are identical. Which bulb will be umuyh;5hr8p 7cquju),c.s :j 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 f*drhx ,v ne4c4bz1m;i5ikzir6.;6l (cdpnr switch and three resistors are connected as shown. With the switch open as shown in the dir4 6;dcbvz6 ni lhz5c x(*ifpne4;,dirr km.1agram 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 ta21kdvn-c x ou. (tf9hhree resistors are connected as shown. With the switch open as shown in the diagram the ammeter re2.oa-ft1( x9kc v nduhads 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 and three resisii:pw(zkl.wx82pg )m mdk;rd*d) u .v tors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere wii.wld kgz )dmd2v. x:rkp8(;) mp*us.
When the switch is closed, what would be the current in the circuit?


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