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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, a jszx652w5/jvld+;x zx0xm ydn 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 fiel 5vysjjzl xdwd/; +xxm2zx60 5d 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 par )gow xeinla c7m4qr(;ox6zk+.t5+gu;fu mi:allel, the_________each resistor is the sa7): ;amgcqfu g +w;+ ioeu.6lkomint54x(xzr me.

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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 ur proiho)b ;) ,zve4:g+ev8dfilament wire of a lightbulb causes the filament to become white hot, while the larger wires connected tb8uoh ) )+e:eozv,;v4 ridrg po 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 thw 5f87ws1tz0h49wnjrh bst- me acronym for wh -hszr5w1f4w9t 0wtnsmh 7b 8jich one 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 os vw 7.6:vvjalength 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 thav 76o:s.v wjve 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 samnlu)6- n alw+xe material. Wire II has twice the diameter and twice the length of I. If I has resin ul+na lx)-w6stance 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 :u 7f( arhtbsw/v5.lw half the length of wire X. If wiwtlua(w sb7v/h.5:rfre 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 ra61w eaod(dyolmqc)j9 ge(-bn 3mv2c+ dius r. This piece of material is then drawn so that it is a cylinder with new length 2L. Whatewco l9o b ag((mm-3 2+qy)v1jd6cned happens 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 wants to make a brgp.b*o)jd *c6k w ph+3 vfadweb*-:tr ighter light bulb. He decides to modify the filament. How should the filament of ar* :* pvh.+pd fj* egadt6w)3wobk- cb 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. Thk(flq:tx u:/8/ xtv 9ngif5y se length and radius ofqiy9txtsfful/ 5/ nvg8 kx:: ( 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 ibz ; jc,lbu*)to a battery in the following way: “Two resistors are connected in series. This combination of two resb u*zlijcb;), istors 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 diagram has internal resiqh4p n i7. j,.w3hkmvxsv(yh vef*z394l nc6bstance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA.l4z.vnx mk,9v h3hif 7w6 *cjhesvb3nq( 4y.p 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 rig-pl0k l3mrwgfj3o(w5f5 j3s h-shh.uht. The three bulbs 1, 2, and 3 - represented as resistor jw53s5ghf3 3.oslmr-fl0h puk(-jw h s 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 curz+rpv7* l:qsp z nh+n3rent in all three resistors is equal, which of the f:rp 73n+ ps zhqzn*vl+ollowing 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 simple e dsw8z d7 0laepb4 qamlroj+6 w+8d0j+lectric circuit composed of 5 identical light bulbs and 2 flashlight celj8ajlz+pd+s e wl m8wbo+ d6r74ad00q ls. 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 followcl-tctldi 1m;uzs91lf bn0** z) jj(zing statements is NOT true concerning the simple circuit shown l zz mzu;lnjft(c1 * 0tdicjl*9b-1s) where resistors 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 :ffrhvpn gx v9x wj+rv46q.q6fmw9/h lt(4 5oin series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are cl fhwrwnx9+h 6q9 mxp4 54g6vfo/t.( :jrfvvq onnected 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 pas x9 ik6z,)rkrds through the identified resistor in 5 seconds once thi,kd 96)kxrrz e 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 gdl9- *t.cnzd the following simple circuit have the same resistance, which would dissipate dn.z*-gl9tcd 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 currengm4u8,*bo ) a4hlzl ef0 lt4qf0)ngdqt through the 6.0 Ω resistor iq04t 80mgnbzo4he)l,fl) laudq * 4fgs 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 connej:uij:x),wiye 74 qa vf/gt8 xeh5wp3cted 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 the vo)fjw:x8:xgiq,p4j wae v 75 ui3hey/tltage 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.e2w: 0+h 5ezae wjwha battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6we :2j aww +5h0a.zhee 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 u52ybj *xr2a: t/k uuswatts and 120 volts. What is the maximum value of the current under these conditions? 2ubu*2kr5atsj:y/xu

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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 ligh4f00p8tpc q0 j)ztocg tbulb designed to operate at 120 volts?08 q4pz)cctf 0pojt0 g

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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 flowsyr r: 446dzl )qcgrq)r through a 4 ohm resistor that is dissipating 36 watts of r q 6r)ylr4qc4dg:)rzpower?

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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 tmgz uh4n0pf5+ o press clothes is marked "120 volt, 600 watt.” In norm0m4nzgfu h5+pal 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 resistances could NOT be produced by a circuit z4ex*hkqd jfr8:mv f.b) ce99containing only three identical 6Ω res 9ffr*bee8mjzqh4v:k 9.d) cxistors?

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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 equivalenha - c(ip2,q:son6qc lrno3 7gt resistances CANNOT be produced using all three na6gooqq cn2c-(s3hir,p7: l 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 dwaj vd ae6 j5le3,kwz79y; sl;ifferent values can be connected together in different configurations. If all threj; 9welejsw ,5al 6kdzyv a73;e 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 zb enpdm a 0w8/+1wbz9connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistorwp89da+ m0b/ zbewz 1ns 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, hal q7/ yd0zfu;jving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about thzd7q/f ;u0 yjle 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 d 1p7rcnyyal ).esigned such that it has a resistance of 12Ω when operating at 120 ncrp .yl)y1a7 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 resisto:c 6pq uh,;w8x 7ld+ 5kdfskger that is dissipating 36 watts of po 6cf,kepqd:d; xgkw +8s7hu l5wer?

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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 when connected s64ttu4bmfa /*d dz+a to 120 volts. If the price of electricity is fub zddt4 mt/a4s*a6+$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 mu )az09 fwr*m)y f7i7muf:ggr z(woho4ch would it cost to keep a 100W lightbulb lit continuously foruwrf(z 9*om)gfry a47ofmi7: zh)gw 0 1 year 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 4.0f9)5u( 6t) bc evlilanign9-1ox/iy x0 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best re)nf9/iovxxg1 6 bt(l9i yu)5i-acne lpresents 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 0:dpzd0wp5a 7 8if /zn5hjmsmfamily of six 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 maximum number of the computers can be operating at mmn5f5hipw7sd z:/d az8j00pthe 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 /wjk 6ytvtj 8 ;va3-htto form a simple circuit as shown yjj w;k /-h6t8 t3tavvto 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 tobq l)zy7;.n;gsym7at aygp:/ four resistors to form a simple circuit as shown to the rightym sgn7p q tzl./;;7:a)yag by.
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 resisq/ m4 vt:jxd5ytors are connected as shown. With the switch open as shown in the5jt/4dxqy: v m 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 cgy3)/9rabx;0 njr arideal ammeter, a switch and three resistors are connected as shown.rc /xngr;bjra0a93y) 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 ipxfon4d u)z nm:3i +:lbs-y a9deal ammeter, a switch and three resistors are connected as shown. With the switch open as shown innp afz3 4xlm:iod+bu n:-)y9s 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 resisj, kfy;e 5k.5j/pf1w; pr:nwyf ucppj(,q x:ktance? Assume that all wires are idequ:kex(/1jfy5.r p;fn k,cjp, ; pkywjp 5f w:al, 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 res/t1l n1.o -eq:h hardmistance of the circuit shown to the right with resistancesq1o -n.1e :lath/mrdh $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identical resistors connected in a combi(3fl6a8.m(vpn vfsv p nationv3p fa(.v6fmv(ls8pn 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 fivey6c*d-owk i s 0vmyh5iht:u30 identical resistors connected in a combination series and paralkisy d6c30hm 5iy oh w0*-t:vulel 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 tz( u ny*1.zelshe bulbs are identical. Which bulb1l*su zzeyn(. will 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 ap qylqv;x j*ouz-jy;iw,y3-9re connected as shown. With the switch open as shown in the diagram the ammeter re*l--w 9iyjy, zojqpyu ;v;3xq ads 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 k vhk c9stlo ):yic v.)f:;-we(a*fv ll-q.ex, a switch and three resistors are connected as shown. With the switch wylskev *livkfv -e. q :lt a(- ho):)x9c;c.fopen 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 battns34ytosqn : 0ery, an ideal ammeter, a switch and three resistors are conne0t:nsyqn 3s4octed as shown. With 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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