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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 t5 cggu13 y xa(j)iq7paqelo 28he metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the rq)7aixpjc8ylaq2g 1e g( 3u5oesistor 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 resiskb*g(4qk 9+t .fa9ymvqbzp d+tors are connected in parallel, the_________each resistortq mfqgv a9+d9k pb4.+y*(bz k 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 x8t kecht*qj,szz +d4i ;,l8ue of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This4jlzqs+8zhic8dt,*k,;te u x 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 is lk:+vua1qje ;the acronym for which qlv a;1 j:ke+uone 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 ap (zbzi 72xylv,2g:dxnd 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 1/2 L. What is the ratio of the new resistivity to the old resixpdyxz7 ,l z:b2vgi( 2stivity 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 materialup:9 /um:5nae6 h 3f1ddr bzjk. Wire II has twice the diameter and twice the length of I. If I has resistance R,:1mz kb 3d/apr :fh5e96uj nud 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 barvg;ee,p 4h d 5sc6i)ut has twice the diameter and half the length of wire X. If wire X has a resistance of R the 4v;eeg a)6s,5 dpchrin 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 len1 qerg -vq,y1ggth 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 thisq qg-ry1g,ev1 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 Edisy(h t9c5r ,lh ftj(o*fon wants to make a brighter light bulb. He decides to modify the filament. How should thoyt9 (h*jlfh( f,5ct re 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 material. The length ape02t. ikg/b6 c,ot krnd radius of each resistor isb6g0 .ctoter/kpk, i2:
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 co59dtpmr r ,w j7ovkv.0.ab.bsnnected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resistorpv.s9drb .5 .bj0,t mr7vakwo . 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 acc 9s3 j9*xdu; vsyxm9rcompanying circuit diagram has internal resistance 10.0 kW and the amms 9ux*rj99ymdc3xs ;veter 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 three bulbs 1, 2, 2uscynef0 +-)vtt5 l ia+te-c)svulnfi5 t0 y 2nd 3 - 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 circuit at the right. If the current in anjf; +un03p+t3pwu5 yetwz b3ze,3j z ll three resistors is equal, which of the following statements must be trutp3 z ++bj53fje; nwtne0 wpy 3zzu,3ue?


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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 right9m /4w e09sux czuzx;6u 1knxk represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulsxn k69k/m;z ucxwu 401uz 9xeb (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 con2 1l2r tb5d*vjm4hyyfuol 2y4n(ukd8 cerning the simple circuit shown where resistors R1, R2 an dy5y bnkul 8t24lu1odr24(mf2vy *jhd 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 iju sz/ m xlm 0qj4(c;3xd37l-*azvfn en series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X acz(jqem ufnl-*/jv0 z ldamxx3s4;3 7ndY 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 w:9 w6 obdn;w (c1prtsmill pass through the identified resistor in 5 seconds once tbn w: do16scw;9tm( prhe 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 resistorsjb7wxdh45c,ly29s jwq :qufb .s 7(y+sfz jl) in the following simple circuit have the same resistance, which would dissipate th9j(fq.w7yc:2+)ju bfxslqjw hsbyl ,z74 ds5 e 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 accomp,jo:6hzv 7 vnzanying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What ihzj: vz76n,vo s 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 ln p.4o-tw)rd,.2pp a3d)oj ;kbfrg e series 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 ppk f erdbo rln .p)3j2p.4-o)tad; ,gwower. 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 andRb3f ssj1ig,5n 3 are connected in parallel to a battery. Suppose R1 has 2V ac sg1f,3inj5 sbross 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 1200 watts and 120 voltz (ryo 0;enp;ks. What is the maximum value of the current under thr(o0 ezy;;npkese 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 oi +q0x(p57 b(vs63qo4y cgzagfmxm,of a 60 watt lightbulb designed to operate at 120 vg c3m4x0( +i gy6pxsq,bqv z7oofa5m( olts?

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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 ta q8j6bd9 j nov45)9du6p-nq4ydlg zphrough a 4 ohm resistor that is dissipating 36 watts of poweruyo59 g-qv498 dnja zljp 4np)d b6q6d?

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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 useu ka) gf/(t8rhd to press clothes is marked "120 volt, 600 watt.” In normal use, thutrf8hak g) /(e 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 r2,s+sywyz7qyk5a x2 ) bjs8oj esistances could NOT be produced by a circuit containing only three identical 6Ω resistors, k2ojby+2 j7ss z syqa5)y8wx?

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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;/z1l 8dtx bueb qgd07i3 7kda the following equivalent resistances CANNOT be produced 71ga8t3eikdx ;dq7 zd 0lb/buusing 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 t3ll:jj mqos n k rkt3e.a6e..-ogether in different configurations. If all three resistor o. r j-kj:3ea3eqm.lnlt6s.ks 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 aqrdp oybi2/83 battery, a total power P is dissipated in the circuit. How muchi/bpr3q8do2y 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, having resistance R1 and R2, are connected in paralf+o6 d3th ztu*lel, the equivalent resistance of the combination is 5Ω . Which of the following s3ofht*6 zud t+tatements 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 bt2*:rpnkyr qx7-l cl f;9htgp:h+d 9 resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0t 9 t pdg:hfxn+q9;27cbkrrll:* -hyp.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 tha dr h82o(+v,guwxa(g2m 73sit lz 6o brutv7.jt is dissipating 36 watgbg+sh.tma7lrzv t(w8 7 2o,o6d( vx2uj ri3 uts 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 heatt0.xgx;exn )t er draws 13 amperes of current when connected to 120 volts. If the price of electricity i.xeg nt )xxt0;s $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 ;ky9p/0/cad sz2wdc m a 100W lightbulb lit continuously for 1 ; kdsdw9 c2/pm0ca/yz 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 y82r(k9waygq e/wuq 4w1ec 1 jin a power of 24.0 W asw(yy 1jq2a/1er9wqgk4uw8 cesociated with the bulb. Which 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 ratedgjna1.l1 l*b(m i0a/ c31)o dogmv;;e nolxxk at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected byk vgmo .0d11b*cxaj enll mnoax1/; o)gi l3(; 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 connec jry++cvzsln wa:7 84eted to four resistors to form a simple circuit as shown rznyw8+l7 sacevj :4+to 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 cia* (xxevz2f7j5gelw+- dc vw 4rcuit as shoe*5 j24wfgelx 7(vz x d+-vwacwn 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 ldqg4 *4e3oef ideal ammeter, a switch and three resistors are connected as showgef q34*l 4oden. 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 ammeter, a switch and three resistors a(h atpq)7(jw ri5vsmc4 c-uz1re connected as shown. With the switch open as shown in the diagram the ammeter reads 2.04 r7wvz c(stc- 1 ja)5qmhpui( 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 threj 7myc;g4l9x c-pdoh(6oneg ( e resistors are connected as shown. With the switch open as shown in the diagram the ammde cgxmy;(o4co6j phg-nl9( 7eter 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 4c0lllo5c:+pi h tgsrqb2 5 +mright, what is the equivalent resistance? Assume that all wires are ideal,5gl0 i5ctl2q o lh rpcsb++:m4 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 u.v(e2nui93rl .yak wlw67 kycircuit shown to the right with resik.kluelna u9wviw27(63 ryy.stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 idengzz; l w: vi5.7ic7boxtical resistors connected in a combination series and parallel circuit to a vo7: xbc7;wv gl io5ziz.ltage 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 identicw8ar.8iiolbz kr; u a-(l2 5lbal resistors connected in a combination series and parallel cir kbluz. rlii;ab( 88l2-5rwoacuit 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 o9 5rsjbnz6a2trkw1 ,vf the bulbs are identical. Which bulb1s26jk,vbrn rz5taw 9 will 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 switch and three resistors are :rtf43 hj1n xo5.b 4zhz-xklhconnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampfk4-j. hz h4xb xot3zn hl:5r1eres.
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, a4oyt g6un8g 4o switch and three resistors are connected as n go 44ou6tgy8shown. 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 switc r(n2 gllfuvb,fzo ; 1cv890myh and three resistors are connfm u;o(,cg0lfv 1bvlyz29n8 rected as shown. With 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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    总分:50分 及格:30分 时间:不限时
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