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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, asdga(n-o3m tou nx1we682 n4ln electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction of the electric field through the interior of the resistoo6et 13sn-8mgannld(w2 x u4or?


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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 parallel, the____av2 *eyu-,uexd )c3k 7xu2 qfy_____each resistor is t7eq2k3* u xe)uxvfy y-,d2ucahe 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 causys(- i6l+(klp ftw.ppes the filament to become white hot, while the larger (ip( lswlfpkpt .y-6+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 lighu4(7pk*lk i4xbhbg:gia 4 u k1ts are being replaced with LEDs. LED is the acronym for which one of the folx: ii4hlkuk(bu7*14kg bpa4 glowing 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 *j3yvyadu 3r-graphite 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 resistivity of the cylindrical resistor?ru y*3ay-j v3d

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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 mate udv z6z7kv;w.m :qg;arial. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resi;a; vg6uvz md q.w:k7zstance

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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)imw 8scxcm3,vg)n/ n the same material but has twice the diameter and half the lengmx nw8/3c,sv gic m))nth of wire X. If 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 and radius r. This piece of 8;b/pu4 ybn jumaterial is then drawn so that it is a cylinder with new length 2L. What happens to tjn ;uu/pb y4b8he 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 Edia2.:/e itr 9*6vdvr bmyche 2s dr0l7bson wants to make a brighter light bulb. He decides tob0*li7cra :esm yr .hv2v6drb2 td9e / modify 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 cylindrica i; uh41spvaf:8m:/fc cj)t-l7 wpjaul resistors are made of the same material. The length and radiuf;)jml :tajv -p4i w/8uhcu:cs17p afs 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 resistancp e9r rcf4ww8(rir+u b8)nl1z e R, 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 arrangement of four resireu(r)rlwp zw8+4i89nr bc1 f stors?

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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 tn1m j :hycjsop 5iuo,y9ph1, (he accompanying circuit diagram has internal resistance 10.0 kW and the ammoih 1:91hj,5 punymo sc(pyj,eter 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 coce 8b5r- h1du3a htg4dd j u-ts)wvl;,mpound circuit shown to the right. The three bulbs 1, 2, and 3 5 b-dj dtg, ) w;vce8dt-l 3r1auuhsh4- 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 cur qlgt69j4jcb82 . xnavwyx44l rent in all three resistors is equal, which of the follqj 4cl.2xat wg9 6n by4jv48xlowing 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 sim7unjj0/k08dtg e wojn3 (n,hj ple electric circuit composed of 5 identical light bulbs and 2 flashlight (utj/j, g nn3dwkh0807jo ej ncells. 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 NOT true concerningsn3mc83zlbt)rx*j nrt71g r . the simple circuit shown where resistorrg*. 338nmjt rnlcx7z)b1 tsrs 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 battery. Bb+.s1ol5 . sk3wbwzxu ulb X is brighter than bulb Y. Assume all circuit 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 bso+ zuxsb1kw5. w.3l 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 tr 4(k*pzd.lx .dmjap+ hrough the identified resistor in 5 seconds onkd pdj. .mlp(4 *zxar+ce 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 repv2w ;: lvb7hysistors in the following simple circuit have the same resistance, which would dissipate the greh7 y:bpvv lw2;atest 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 curvkb4r6ge gj:vf k0p2-rent through the 6.0 Ω resistor is 1.0 A. eg 6k40r b:vjf-gvk2p 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 R8r2a1eu d7+xg qp+j by1, R2, and R3 are connected in 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 power. What xa++eyq12d8 r7ujgbp 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 andup:jplw5ow6yl6,f8 t,, fueoR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and Rfp6ewo :t luuo,,6j 8, plywf53 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 maximukn 05 5bmy;plzm value of the current under these conditi5y5;z pnmbl0k ons?

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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 ob ;cxz,sv4rz+1 .fl tl)u1+ xw uzqqbt/2etc,perate at 120 voltsux.qz, fub+ zq 2erc,;vl 1lc1t b4tx)ws+/tz?

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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 resi .mkje lc6(x:bstor that is dissipating 36 watts oj :klm6e.(xbcf 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 is mki;1-ks(5j o fnxv:6zg6c5 u5qalwb aarked "120 volt, 600 watt.” In normal use, 16xzosikaga56c5 q- jfuvlw ;bnk( :5 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 resistances could,*xixvhfhrt*il8l)(lc yu.4 NOT be produced by a circuit containing only three identical 6Ω resistors r* i,*ul.tl 4hifcl)hyx8(vx?

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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 equivalent70w; pe1qzxc)*d/:sxf kco) t lz:nxu resistances CANN:f)sx lx*x)w7 ude:1nczt qckp z; /0oOT 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 ubw5ph pg.85 uhah) c h4lv70din different configurations. If all three resistors are used in a circuit, how many diffe7 l8p ubp g55)h hv40.hawdchurent 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 t7ld8i;cxvr *ux7vc,3l q;/.memnw6o jw2 fx no a battery, a total power P is dissipated in the ll7*n6,3.incmrfx wm2v e8 q/x7vuc xj; o;wdcircuit. 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, having resistance R1 and R2, are connected in pa.17z:cbmsdb5c3f.nt f sax0f0h i+zprallel, the equivalent resistance of the combinatiofbb3c0.t0.dif7mfzzs +s1pnhcx5 : an 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 resi b jq82mv:lsem ybf0f0(s 4tkk04w ph8stance of 12Ω when operating s w0qf0m2 8btk0 sevj4mlpy 8fhkb(4:at 120 volts. 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 through a 4 ohm resistor that is dissipating riqz1; y/e z9t36 watts of poyei91/zz; rtq wer?

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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 heatckn(7opmjiv) 0lv . y1er draws 13 amperes of current when connected to 120 volts. 0.j vl)v(1mokncip7 yIf the 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 k;xxs3p9mx 4xn eep a 100W lightbulb lit continuously for 1 yex x4sm xnp9;x3ar 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 throh,x2/lvwxs (hcchr ,ikul*11 .na-eodw(z(sugh a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices sh u112likhx (scwn h/*wvr.,(oxlce(,zd a- 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 com 5a hax2yzcmv4,1bba5 qf a5n3puter 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 com5 a aymvq a5x1253nzabc4 ,fbhputers 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 t*:x zb71 pmjbq5 p0z uxjnwpu)n,w7*ro four resistors to form a simple circuit as 7p1ju* 0pzwr) xpm* b: uxwq57jznn,bshown 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 fonw mlsslknof uqq. +vpe8--/ ,b;* 8ahur resistors to form a simple circuit as shown.baksmnq8 hp,/nw;*-8-e s ofuq vll+ 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 thrj( 1 om(rbzi ;(j n6d-dba4tzoee resistors are connected as om djz46-1i;ja (b(znd or bt(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 ammeter, a switch lw*2 l9 -:r:/xzayydcutdt g.and three resistors are connected as shown. With the switch open as shown in /-d:da: lz wu. 2*9lxgycttyrthe 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 ic:hpsq4k 8 l0gdeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. sgqkp hc84 :0l
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, whatv3 htdyfv 1.v-w07dy i is the equivalent resistance? Assume01v7d-i3vd .w fhytyv that all wires 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 ramv2x 0u cv*k/uhd4 b 8ij34sfesistance of the circuit shown to the right with resfi4ud bx 4mcavvj0 k h*u23s/8istances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 .vdaj)jpz.m59 v 5c v) y5urxpfive identical resistors connected in a combinati. )vjpd. a9yv j5rpm5uxc5)zv on series 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 resistors connect:adx l6u9vf4h ed in a combination series and parallex4 flav 9:uh6dl 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 identical. Wu uxrjlvj+tq7a21 ;lqw;btcd ew14 qmj4*/)yhich bulb will be the brigayebw)wxu7 r j2+*1 l;lm;/d 14c ttqj4qujqvhtest?


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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 idez) v/0 pbs;vilal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperi;ls/ z)vbv0p es.
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 amff f8+ 6o3wvn0tdpy j49.pez :orl*hemeter, a switch and three resistors are connected as shpyrwe. jft 8v94p+ 3l6 fz :nofhd0e*oown. 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 switch ibmjhh0i ob*fx,n830uaa: 8 +im+jf- sjhsn6and three resistors are connected as shown. With thfohbs+j j8 j0x,ah6 s fn i8-0am*+ui nm3hbi:e 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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