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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 currenyrw4niy/. 3f ft( ;twzt exists in the metal resistor connected to the battery. Which one of the following choices bestwf4 i.wn3ty/zf(;t r y describes the direction 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 connectw+f vs sgt44t+ed in parallel, the_________each resistv+s+ 4gtw4 sftor 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 tnufz00gd /0 -jgho qh:hin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens because:0qghf n/uh-zg0 0 djo

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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 ara y +q/szlzrmz1;f34qe being replaced with LEDs. LED is the acronym for which one of 4 / 3;q1fryzlaq+zzms 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 and cross-sectiobezi9,x o4svn )b9y, znal 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 resoxi94)z ey 9vb,s,nzb istivity 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. Wl9a.h dww/6 l ho:g5i7bf*gtcire II has twice the diameter and twice the length of I. If I has relh7ig.6 *d:tw g baf9c/lhow5 sistance 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 diametj (,l )fi,twxd 3*tuzk o)0bexer and half the length of w,3lkt))jeitbuo, f 0*wd xz (xire 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 materoqbya u m ;5i)y+86salial is then drawn so that it is a cylinder with new length 2L. What happens to the resisola)ia mq +6y b5y8;ustance 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 deco+d 0umv *mxo8ides to modify the filament. How should tv*xo0mmu +o d8he 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 lengt0 q, xm9lu( ts,yk;oxayzak)5h and radius of each resistor z;)klyxqxs5a(0yu ,kot m ,a9is:
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, ar, w656 ngezcn9 obqmmw03*lxhe 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 ren63ehgo*59,w qlbmm0 cnw6xzsistors 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 diagram has internal resi- vdiebw, g-a5stance 10.0 kW and the ammeter has internal resistance 25.0bvg--e d,5aiw 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,fz9qu,b3. 0vd:pv g ue and 3 - represented as resist0.q p dbegf9uvzu, 3v:ors 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 eleu zdbw;6 ufm1+1ljz5i5o f;iictrical circuit at the right. If the current in all three resistors is equal, 1; wfo5miu 1d6bf juz+ iliz;5which 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 simb lxxt /(q:,;fpyt7 tnl vf6i(ple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whqtxlf, ix6;:7(vp ynt(b/ftlich 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 concerning the simple circutr.rn x ,a+/afit shown where resistors R1, R, rrxfnat a+/.2 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. Bulb X is brix kdw es wiq+89;jvo7-ghter than bulb Ydsi7wowv8-+ ;e xq9jk. 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 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 ck quy5gg*qc0 /sji,t/ *sw2kyoulombs will pass through the identified resistor in 5 seconds once the circuit y*u02q c k5yki jgw,/ ss*/tqg 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 resistors in the following simple c((hdl6sevnnp4ycqt4 5( je4bircuit have the same resistance, wendvhtl(4 6cq 4 bej((5s4ynphich 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 accompanyinp 7-fc9;dya9x 8f pzrvg circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply volt7 ; fyx8a dp9-vrpfzc9age 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 a ph z2m4gww-v7re 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 is thev7 p-w2zmg4hw 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 in parallel to a bat5 cqmjksvljqw++p3 ;4 tery. Suppose R15qm +qls; 4j+vpcw3jk has 2V across 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 volts. q1udxmm3k;-yoiozzh9 -k 8t 6What is the maximum value of the current under thzh9-yk1mx3o6it z -qmo 8d;k uese 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 r) n/3 l *cl2 pl9v:d p1rmggmz3ydwa nft3xu9/esistance of a 60 watt lightbulb designed to operate at 120 vodtdgnu n1plfgv/lx *m/)yl39:9 w33az cmrp2lts?

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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 dissiz0 ci,ki,yv*n pating 36 watt,yi 0*v,cnikz s 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 is marked "1ymd(-s d nt sh9.r-, klvu:3so20 volt, 600 watt.” In normal use, the currentd9 u3sso,st(-r. ynhm:kvl- d 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 NOT be produced b/x l:oy/n rr2w;v .zfsw rtwxad94x.*y a circuit containing only three identical 9od42yz/.w vr *awxsxxt :lr/nr;wf.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 followinbrtr , guk46i+c+w 4gbbjm zf17hd.0pg equivalent resistances CANNOT be prodg641bif dmkbzru7r c.j+,hw t4b+pg0uced 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 jrnmg1 es8z22bzu7 d1together in different configurations. If all three resistors are used in a circuit, how many u ngzjd re 2mb181s27zdifferent 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 rylt+kkjh 58li6aiekym035/ v esistor is connected to a battery, a total power P is dissipated in the circuit. 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 ofkk +vyl ymt5ha6l03iji k5/8e 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, 1rp.l4mmtv j1having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the follo m4lv.j1 tp1rmwing 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 12Ω when operk7z m gfgc:2u9ating k9 c2g:gm7u zfat 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 e e0xcdiia4s a96 hk/8ka+ wj;ohm resistor that is dissipating 36 wattka8 w+e9 ak4ajxeh c/i0si;d6s 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 currenkryw cz:kbgl:( )3s/v t when connected to 120 volts. If ther cw3:l/yz k)bs(:kgv 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 i*-:lg3-ma9tu teh gtfwi+ 2hlightbulb lit continuously for 1 year at a rate o ua2:+tti lghihmw eg-*f-3t9f $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 current1 rsefx kxu8qi2(. pc404zdb t of 4.00 A through a lightbulb results in a power of 24.0 W associated with tht.r8 z0(4iusp1 4xb2qdcf kxe e 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 c;0xts 8krp5s6vcld1lomputer rated at 500 watts in a 120 V circuit. If all p cdx0lsr5 6;kl81tsvcomputers 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 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 battep /oq5 khf6d:try is connected to four resistors to form a simple circuit as shown to the r/ p5:qd thof6kight.
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 tr* xvhw5i 9klu6eln2x22i .ccju8b. n t3dj;eo four resistors to form a simple circuit as sv6trwuc 9i2jh;d2b*i.j. c ke2x u 835le xlnnhown 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 three resjp-cmmdn) imy rm3031istors are connected as shown. With the switch open as shown in the diagram the ammeter rm 3nm1c-)0py mm3rid jeads 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 rawqhfu n n*m:a33)iy0esistors are connected asmi u:ha 0*3qf )yn3awn shown. 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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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal ammet,x d5fwpsdymv*+ l-xh c iwzs:62p u3.er, a switch and three resistors are connected as shown. With3hwwy cx5d6 p,xmdu *il. : svfpzs2+- 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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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 si 8 dnbr1tew:li.03 mequivalent resistance? Assume that all wires are ideal, the battery hb0r3n.8d mt1i wil: seas 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 sruw3wf2i.lvd p:1 a: f imi xe9w8i3+yhown to the right with resistancwem ii3 8 1: w+u9dfryi:lvxaw2p.if3es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ident1xdez3q gxv :4ical resistors connected in a combination series and parallel circuit to ag4xqz: e3 vdx1 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 resisz3bjaqf1j45o p01 rjwy ad (h4tors connected in a combination series an( jhaybqdao1j 44rf35 p1z0jw d 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 arzf a5kj a-xyapp6s42/pvhw + 6e identical. Which bulb will +2 -f66ahax sapwpv5yk4/zpj 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 co2k+ .hmf*cfx4gc df-6kgzp )hnnected as shown. With the swk .zhf*m6 fxdpgc2kfc)+4 h g-itch 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 ideal ammeter, a switch and three resil203xt tttym-y :rp(mstors are connected as shown. With the switch open as shown in the diagram the ammeteypt my30mtr-tl:2t(x r 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 an0zknsnvub7- - d three resistors are connected as shown. With the switch open as shown in thsb-knvnz70 u- e diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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