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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 t . en-mfrtcx9+he 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 9f mx .en+c-trthe 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 connecte1 qx k8you)wn8.ay0lj9lsz 7glw6cd )d in parallel, the_________each resistor is the cq81ga8 )k9 0s )ll76juywdnoylx wz.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 oev ux 9 qw2wur7mm4,t1kvlcrw0 9jx*3f a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becau2x0x3qumvtw7*j, mew wck49lruvr 91 se

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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 r b.1;ukj; sw-ym qe,m5q;m astty)(mteplaced with LEDs. LED is the acronym for which one of the followiq )stb;mwmjytq(au e;5. -k;smy, 1mt ng 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 resistorqki 4 lvne4,doiyx5i 50:dx3w has length L and cross-sectional area A. It is to be placed in4lvye ikdwn0o453 :i qidx5 x,to 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?

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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 arefn jz(b c2 x8cb0h(wz7h f5rd; made of the same material. Wire II has twice the diameter and twice the length of I. If I hbr8 z5 7h0(cfjz;cfx(b2nwdhas 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 diameter and hl4*ct 1r n k..d,ykmjoalf the mk c*o nt4.,jdl .y1krlength 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 anfmapz zwj,g4 isj4. 37d radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What ha73siz4p.4, wa zmfjj gppens to the 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 wapgclg9x670 7azkc/ d)j2qpo onts to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more l k6c09q g/ldz2og pj7c7xo)p aight 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:b 21 q-c io7ehenbnl3 resistors are made of the same material. The length and radius of each resistor is: :iob3cn7 nqe1h 2eb-l
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 battery in the xln1k7k :y83 cbuwblz7 st-( dfollowing way: “Two resistors are connected in szlkcyw 3(b tdunlb71-7k:x 8 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 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 dsa a,b:q)c2sviagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. Thv:),qasbs2 c ae 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 compou7z8fs rbup ,0(hiuj voh:1: vand circuit shown to the right. The three bulbs 1, 2, and 31ijr: 7 uv 8 h0zbh:ufa(ps,ov - 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 tk a 0e /p7hxplgy00)iehe current in all three resistl/ ) hep0 gexiky0pa07ors 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 right represents a sn:x n);izg9c 2fo mmy-f 4ecb6f1vxbi koz6:/imple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whf9;xzc-1c/fnfngb6oki y2b)z: m4 6mxi ov: eich 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 y vt;uew1a;y08 igirjvuq 4t.uu6q: pku 4;e9following statements is NOT true concerning the simple circuit shown where uwy 4;tt.p:1y ruavj4kquqi8 9 0ug 6;ueev;iresistors 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 serieu+efp b i ;895fr xzq-+6hbfu mnbm8:ls to a battery. Bulb 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, whic+ mf6zf8qb5l b:;r+i- nh9bm xeupf 8uh 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 coul )on6rk *k1 xq78nsfgfombs will pass through the identified resistor in 5 seconds o *81nfr)xq nsfk 76gk once 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 resistors in the following simple circuit have the oip/t upbhqr-3lm3:* same resistance, wp -o3mt:qpbulih/r*3 hich 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 accompanying circuit diagram, ,i (q 9p dgd22n.a1j fliz1lancx,v u;the current through the 6.0 Ω resistor is 1.0 A. What is thezd, 2q1ca,xnad i2ljlp9n1u f gv.(;i 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 conn8dni6 5vfwcz2ected 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 iw 2fdz8vc 56nW 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 in paue *v (bsm5d5lrallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6esm(*b 5v ldu5 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 w wh)s8xlty +5ratts and 120 volts. What is the maximum value of the current under5l 8hy t)rws+x 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 lightbbhbjag( dt-2ehg, dkg0 12u9iulb designed to operate at 120 voltsg2khggh dteud0, baj1 i(9 -2b?

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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 res6ew f6t r+y0 -1*ozres fobl6histor that is dissipating 36 watts of 6beyezsor6+1 ft0- w hol*rf 6power?

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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 irod9 h qrgj;zs zzda.hu61ku+-)n used to press clothes is marked "120 volt, 600 watt.” In normal use, the cuz qhg.uj+a1;suzz9h-)kr 6ddrrent 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 produceu r t7 zz;8e zjuu48hggpk.z/2d by a circuit containing only three identical /48j.h z8u;z7pkze u2zu gtrg6Ω 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 givenlf(n/,il86 rclp0 y +vx/mpk)9razwt three 1.0 Ω resistors. Which of the following equivalent resistanc zvitpk c( l9 6/wp8/rrm) axln0+yl,fes 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 together in3qyv+kkx0 i;u different configurations. If all three resistors are used in a circuit, howuv+kk 0 iq3yx; 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, i5ybesl ,,1us5ogqmn/ y8hs/ a total power P is dissipated in the circuit. How much total power is dissipated in a circui , mens5l,5hgis8u/y qy/os1bt 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, arzv994r 7ln/g;7aq c;omfw jel9t7rape connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following staf;n7w/cal po97 a 7ltqm 49vrejrz ;g9tements 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 ajg 1b,:t 5saeuz 7tk+c resistance of 12Ω when operating at 120 volts. What is the minimum amount of tiau1t7e: +jsk z 5,bgtcme 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 dissipa+ k/y9olxol v;p8; iwating 36 watts of ppv;o /o lx+i;ayw89 klower?

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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 cl5 bnn a4ty a3t20dwrcy1(.zk zhk0 *-ejo)zmurrent when connected to 120 volts. If the price of yrj1kd 0y a5twzz2 ) mo.*3be (kha4cn-tnzl0electricity 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 100Wccf 5:t)ytqbje86,sn2m/qew i8z e6 4p wll+e lightbulb lit continuously for 1 6q4:cm)ftw+t 88,e2enj6s/iqb5ylz wlepceyear 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 zo5 xu.iy5vv. oobc;2of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. .ico.; u x2yz5v5voob 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 rated at 500 wattsj 5r+1r-(vm6a uqjyv n in a 120 V circuit. If all computers are plugged into a single circuit protected1n vu-qr6a+y rv5 jm(j 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 battery is connected to four resistors to form a simple circuitqn n hni g(i)+z04tg:f as shown to the rin z 0i 4n(nif)qg+:htgght.
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 ry sipmv(*qut/wh/* w 01iz8/d rctq6is connected to four resistors to form a simple circuit as shown to 8r1 urq0*q v/iym wits/pd6zwt/(h* cthe 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 switl 1qbr sn:v*02csvzx4ch and three resistors are connected as shown. With the switch open as shown i:qsbx4 1 c2l*nrv0 vszn 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 ammete:ig 4 dz5(sfqjp*v7 pgr, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammet *js5dgfip(q4 vp :7gzer 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 batters bm-89r ujw7p3c2mkvy, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter 3-wmj 9c7rkp2mu8sbv 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 e cye88s,pt d7equivalent resistance? Assume that al p8ee,ytscd78l 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 resistance of the circuit shown to the right witd +o/gb)ir7zdq0vl3 g h resistances dvorl3 g7z 0/ gb+qi)d$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identi.ptxd8*gt40x0p j-:m 6pwo xrvt)dn xcal resistors connected in a combinati*r dx6:tnvt8t4 xw dx p0m. pxjog-)p0on 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 identica(gas t(a6i1 gml resistors connected in a combination series and parallel circuit to a voltage sours1 (agmiag6t(ce.
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 diagr e-akdgj8 i5z40cf aw+am, all of the bulbs are identical. Which bulb widajwg4f zk-80 5ic+ea ll 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,g7h .;:n3i 2 e*ikfvdwu*ve ty an ideal ammeter, a switch and three resistors are connected asifwk2t y:7d he*. viue;gvn3 * 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ide an5sm z30c;mkal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter z;n0ka 3s5cmm 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 batte.d*gh9s5t./ miynovp ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperesd ioh.tpgym.v/ *s n95.
When the switch is closed, what would be the current in the circuit?


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