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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 ress bjyink3o,n1) v5xk 8 i.-mi*+lvrtnistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the directio,*v ksyjib1i vkt)r3x+n -5 n n.l8imon 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 connected in pa fial p 4 36*7 zy*z+8+k+kmmwfsebfcfrallel, the_________each resistoz87y* kz albsmf ++*c6 3mwf4p f+kfier 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 fila *(aqq- +(tujgq2lise u -y:vhment wire of a lightbulb causes the filameq(eyh( 2qtgs-+ v-uj*u ql:aint to become 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 w i5m,tz:jj l*lith LEDs. LED is the acronym for which o*jimljt,5: l zne 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 leninxf kwtym75jld1r 5 3jyv4/ 9gth L and cross-sectional area A. It is to be placed into a circut5mxlv 9 fj/kn5 1i37wydyj4rit, 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 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 th bcz tj)vros e44l+a+yml*,:qe same material. Wire II has twice the dimbc y*):r4 4o+ lzea,+lq vstjameter and 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 madg--9r 3 11dsfkvlb,o *ksplbzfp ,x/we of the same material but has twice the diameter and half the length of wire X. If wirgfk,pw1- 3-sb /,oz1lkr* sp dvflbx 9e 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 aw; .cdidw11 ubnd 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 material because of this process? dbi 1c1w.dw;u

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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 decides)- zbyfjl ;*qm to modify the filament. How should the filamez)*fj mybq;l-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 resistors are made of thes788;ztsdledp x t 1q1 same material. The length and radius of each resistor is: l8qds dt;z7 8xt1e 1ps
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 Rm (6eds7b .szi, are connected 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 resistor. This set of three resistors is connected in series to a fourth resistor.” What is the equivalent resistance of this arraz7me ds bs(i6.ngement 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 resista psc9o4ds-x *lnce 10.0 kW and the ammeter has internal re 4-cx*pdossl 9sistance 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 ifa7kqobhd) qj 28+ac7r b5(e the right. The three bulbs 1, 2, and 3 - represaqi q7cob aed)782h(br+ fjk 5ented 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 simpgg9z.ojjn 1 3q+x-mjyle electrical circuit at the right. If the current in all three resinjqm-zo9jg1j 3 +gxy .stors 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 righq;yeb)x;inh +t represents a simple electric circuit composed of 5 identical light bulbs and 2 flashli;q+neb;yi) xhght 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 statemenmkwrs29a7 v;/hmd uh7 ts is NOT true concerning the simple circuit shown where resistors R1, R2 and Rmk7w7;rhu9 savh /md23 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 battery. Bulb1o a)wzutm1 w 5+x/pdavg9nl-;gj1zu X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each othe/z1 g a1+nxa 9)1pw-v;zdto mulj5guwr 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 identified resistor in otye l ms;e )hd( 5z-r5hg-v6ei91qas 5 seconds once the circuit wq(-vrdhm ehgla;szi es95o t)1ye-5 6as 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 resistors in the following simple circuit have the s.ox 9x vxe: scjqd -ozp+wt3: lsd,p6(ame resistance, which would3: txd 6clxq:o z(pv+.ws jo,9ds-e xp 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 x2c1; zjqx+n8m kxui* current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V?mx*j1uiqk n82+xxc z;


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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 connectazauhq qc4:6, ed in series to a battery. Suppose R1 carries a cuh 6:4q aazcq,urrent of 2.0 A, R2 has a resistance 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 andR3 are connected +jz,vo+ (buft in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω,jtv u++f,( boz 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 volts. What is the maximuoelk9l v6; z3boe(;0ireada) m value oe3 ez;6;kad )( 9llbvor0eiaof the current 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 operd leq3f,p7hi3 t4y8qgvt5(tfate at 120 l4g3ef 3d5 v tpq qt8yti7,hf(volts?

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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 dissipating 36 p9nwhoxo,9h2 5r/h, 1fgsmto watts 1h2fr op, h9h,otmn xw/g9o5s 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 use m(wbxc9fii- lt7t:,5)bha oj d to press clothes is marked "120 volt, 600 watt.” In normal use, the current in it i h57:otbia )j( - 9bw,cmtxfils

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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 produc8 h ift)hj8/ccvz47+mj jpze.ed by a circuit containing only three identical 6Ω resistjhi v+.8pz/fteh8c) m74jcjzors?

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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 thro yr zw10fp6d;ee 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using pfwrz1d6o0y ;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 connecte )hzh()i:vh vxd together in different configurations. If all three resistoh:v z)h)(xhi vrs 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 connecv8+m jqa zt/9mef-2oo ted to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistor-j8atmm9eo+fq2v oz /s 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, arek,z 60ovqrs -qb) 02kdiaxv1 *nqft3t connected in parallel, the equivalent 6fd3*z0k 2vrqobq 1ttq-,a)0xn vik sresistance of the combination is 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 1pu kfj6l lri*3qbu5t7 wb -i-*2Ω when operating at 120 vq- k* tfb*i-p6j 5ir7ull wbu3olts. 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 flows thror)) )ize3gec.uih2x gcq4r4rtlxe 6+ugh a 4 ohm resistor that is dissipating 36 watts cxee l4g)gc u r2).x4trr +3)zihiq6e 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 whebrz. t6h2zs zcb-ak60n connected to 120 volts. If sz62za .tchb z-k0b6rthe price of 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 co1 i y8,vszxpz;ntinuously for 1 year 8 y 1,visxz;zpat 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 tgfxl+/jhz8*gzjkcu ;zb -2 yt3x i* :ahrough a lightbulb results in a power of 24.0 W associated with the bulyc/z 2*ju jhz;az:-i8*b3xxkgftg+ lb. 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 s z1bnnl(ruw5a7, p7v g1 s;qkrix 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 maximumlprr sw75a u(n1k,7gnzv;b1 q 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 resi awti)1y x,z/i1d.mjlstors to form a simple circuit as shown to the zi w/1.,1 ymi)jldxatright.
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 isgpnh,*;x7 nj 1qpp+a r connected to four resistors to form a simple circuit as shown to the right. 7,n*x;1an qj +pprhp g
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 swi5i5m)d 6xv5ptguv- sp;g p 3tftch and three resistors are connected as shown. With the switch open as shown53u i fg;d5tmvv-6pp5 t g)xps 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 lk:n -l *z7mk;kr:6of;hh oto0 wgya7 are connected as shown. With the switch open as shown in the diagram the ammeter re kr;:ltgkawm ;ok7ol6-z:fnyo h7h 0*ads 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 ammetere kx(i0;5nnlrzk tllz.k* 5q7, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0kn5lkl*.t kx7;izzn 0r(5 leq 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 resista0,ehyr v(6a-cmf h9pence? Assume that all wiresef0ayc96 h pr-ev,h( m are ideal, 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 circuit shown to the righg a3i b: 260ip wn/lnjts/3ob x e/ongfky,0,ct with resisj,b /yikng c,30/ 0f ltna/g6x on2s p:b3ewiotances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 .-d:s-y wvb +q ttk,scidentical resistors connected in a combination seriesbtky-s: s.,vcq +wd-t and parallel circuit 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 reswi-kq-:ls6h/ mo mhh.istors connected in a combination series and parallel circuit to a lhk :sh ho6qim.m-/ -wvoltage 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 : r1jw90a h,7aet. h/bsbdhg:aiu- evof the bulbs are identical. Which bulb will be the brightg9s/h.h:ude: havt0 be-jrai 7a b,w1est?


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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 resisin4j;f,(e uw otors are connected as shown. With tw(,un4f oe;ji he 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, an idnn hgr;m+f7 q;nkuv5 4,y 8etaeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter 4,t7u nhm;+g8rnv5n faek;yq 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 y nsvx(p ocx,mn-ja4p7 kq,1- ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the di ,m7vkajsno , y-xpcp1(q- nx4agram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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