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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, gh,zfdgqt.9 9an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the directio.gfzq,9 td9hgn 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 connecacm gb(w q63r*3 uo7qzted in parallel, the_________each resistor iscobaz*u w6r(q73g 3mq 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 wire of a lightbulb caz:. .m*p budc,s4ncrxuses the filament to becou:b4.s,nzc*xm p r.dc me 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 are being replaced with LEDs. LED is the hk xs ob4 h9guip /09e(1wt1apacronym for which one of the following 190 e 4/bphku1oath(9pgws ixchoices?

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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 graphi j,mt 0cvw- bazk o d6(j;z8ktk9p7q-rte resistor has 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 1/2 L. What is the ratio of the new resistivity to the old resist7 t wpk(ctq;a-dz9z6,jm- kb 8v rjok0ivity 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 I:on a2 3n7nwvyI are made of the same material. Wire II has twice the diameter and twice the lenawn23y n:7ovngth 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 but has twice the diamet2r w;u wm9ri7k0 asx0p9 1iv5j/gtbwter and half the length of wire X. If wire X has a resistance of R then wire Y would have a9w2;mk buv1wr 75rt0 t/j9ixsigpw 0a 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 resistor4r dtm.go3.+yxxl4r9dyy4/q;x g4is jtc, ot 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 rsgxgd.4 dx.c i4qmo;t t4,34/oryjyy9tx + l 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 wteg2c4f.s)s1 i6y wkhn4cyp;5cr:px cw8* haants to make a brighter light bulb. He decides to modify the filament. How should the filametgiwhyps8x a6fe hc*k4 c;yr w n4 c5:2)1p.csnt 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 mk *7/7r,w(ovz rq2sbw7 q yaebaterial. The length and wq/e 7zw( ,*rok b7r7a 2vysbqradius of 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 to a batt5nz p(:s yl1xp c-qwq2f2 io1xery in the following way: “Two resistors are connected in series. This combination opc-yqw15(spn f1x:q2z 2ixl 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 dian37q wz l 3 8akgpt5;-v0casyqgram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeteg ws8-3 apclzq35q;v7y 0nt kar 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 d,+vw ;z jcp7os+dk.n(.z edc bulbs 1, 2, and 3 - represented as resistors in the diagramp+;z.jkd, v+ sco7e(dcn .z dw
- 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 t4oxp/g5wp h8j 0 vw:7fg skza*he current in all three resistors is equal, whgv7o *wszk0w/px p8jf4g5 a:hich 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 al5lg+u6dxr ca :r,t) right represents a simple electric circuit composed of 5 identical light bulbs and 2 d+5lr a6txuc arl:,g )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 q t7e*9 (lneyhhlan /.NOT true concerning the simple circuit shown where resisto*q.le(n7yhe9a h/ tlnrs 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 yt0mo:a u e4gix7i5x8/f. rvu in series to a battery. Bulb X is brighter than bulb Y. Assume all ci ./eor0xy :4mt87ugu ifai5 vxrcuit 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 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 thelhsg- y(hd 3)c identified resistor in 5 seconds once the circuit yh )gc- s3(hld 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 res azudg;qj*a1 4b3i t6rku,jj*istors in the following simple circuit have the same resistance, which would dissipajd; 3 au*r 4qgiaubj6*,1 ktjzte 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 t4x; byic ijsdj u 63urum-151nhrough the 6.0 Ω resist n6;ij1 5cy suru1xu3jdi4mb-or is 1.0 A. 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 series to a (jjkef7:y0gvc nw6 (abattery. 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 thyk7e6g (jjc(w0:f v nae 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 andR3 are codp2j4 ym gq9h6nnected in parallel to a battery. Suppose R1 has 2V across jm62dhy pg q94it, 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 rrr6 * 2zr/y u;uau7bypated 1200 watts and 120 volts. What is the maximum value of the currea ubr6ruzy* r;up7y2/nt 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 dehud;yu(j.c n8 signed to operate at 120 volud.;cnu(hj 8yts?

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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 is dissipatingg7 8g)d2fsq )z ,ww;r (zmaeyn 36 watts y wdg)mnaw8rqgz zes2(,f) 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 (lk(*r)ilme)- y4lykulcc o, qr kd00qxm4p9press clothes is marked "120 volt, 600 watt.” In k i4*0r c,xmckremq )o u(0-4p dl)ly( k9lylqnormal 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 rjg(40 f-,.hmyj oivs lesistances could NOT be produced by a circuit contg,h(lij. 0f ovj-smy 4aining only three 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. Which of the following equivale:9;qxr *hfuzal c7bu-btu ko6a 2 kn7*nt resistq l79a2b* k: kfa6cu rzt;7uhou*x-nbances 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 togc / m5d,dbb0ckfv jnq2y:-eo3ether in different conf0/njb 3 cbved k-y,d5: 2fqmcoigurations. 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 power P 8 ,0a(sn:abc lv+axpl is dissipated in the circuit. How much total power is nlsa p+,lba: 8xc0va(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 resi9(z4w txnax*s stors, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination (tzna sw x*x94is 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 of 12h ++z5ibbpshx-u -+jeΩ when operating at 120 vo5b+i p+-bs+-jehxz hu lts. What is the minimum 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 a+4lzvz+f bwic*6/n4-g gy ziflows through a 4 ohm resistor that is dissipating 36 watts of power?zii6/+zcbzfg+* l-agw4y n4 v

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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 a5ml q*i(on- mxhg:g:(gql a++l4dtqm8x*eq current when connected to 120 volts. If the price of electricioa4 lexqx- m+d5gq(+mhgq: tlln*(:m*qag8ity 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 ta. c4othqf4f gf3d/5lightbulb lit continuously for 1 year at a 5tft/3cfa4od4qfg .h 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 lightb3,eplj : 5kkddulb results in a power of 24.0 W associated with the bulb. Which one of the ,d3 dkk:elj5pfollowing 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 akh//i a3 lh*cyf75-3nhle mr o 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 5ch*/-lhka/e33oh m 7lnrify 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 fourfw64g5o2 vesw resistors to form a simple circuit as shown to the gwe6o4f2sw5 vright.
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 batt7 at8.1s.jopn 7ucg nrvxva ,(ery is connected to four resistors to form a simple circuit as show o tan.vv8.s uc7xaj r1,pgn(7n 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 i)mzw tmi 8qf6/ s-,egthree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amweiz t8 f,gq m-m/6i)speres.
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 are9jof*/ym:x.4p efa 1 fup9 rpp connected as shown. With the switchpm y 9pa: 4x/ 9*fpp1e.ffrjou 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;9kpe1e zf c tz/5zt5t are connected as shown. With the switchfezk 15tez tp zc/;t59 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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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, what is the equivalent r-+wtb .n, t6wjds0.7 kd ixgwwesistance? Assume that all wires are ideal, the battery has no internal resistance, and all three re-wni76b+wdtk g.0.,dtjxws w sistors 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 shown to the right with rjj1svr-m3 , bresistaj1 r,j3v b-smrnces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 showsk8smjaxsufg h543v ,7rn /f4k five identical resistors connected in a combination series and parallel circuit to a voltage s nk4 74s,3 gr/ksxmuff5 j8avhource.
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 rem0f.,bydtw ll*:(v th5 n7auj sistors connected in a combinatio: 5h wmlfu0.t*v 7 adt,bylnj(n series and 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 are 2 ux 9 xa:spurrnk ;1n2urw*l-identical. Which bulb will be the brig 2u1xrp29lsu: k w-n xrnr*;uahtest?


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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 ai pb h7-vyl5v7re connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.ip-l 7vh 57ybv
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 an.yjdhna9gv c,io6 d)6 d three resistors are connected as shown. With the switch op 6.hj)ignc av9,yod 6den 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 switch and three uq m 6+9:fd/xan. esufresistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere/xeua+ qs:9d.nm6f fus.
When the switch is closed, what would be the current in the circuit?


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