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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 resistor cou;)ms (a + +s-v3j,cigm-qawy mpdf 5dnnected to the battery. Which one of the following choices best describes the directyg;mmu)5f a+ijv3(pdc-,+- a dqsswm ion 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 connected in parallel, the____ * wi:5k4fdx j4.hvdbg250mkbih5i eu_____each resistor veh uig.kfj b 5d5hwb*x :5i0k442dimis 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 throughq77y* h7g kcdo the thin filament wire of a lightbulb causes the filament to becdg7 *7qykhco7 ome 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 replac dn:rvt;2ga q7:sa9 hfed with LEDs. LED is the acronym for which one of the followsah af 9v7t:d2;r:n qging 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 lepho74t)vx ree .a(p+cngth 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 resit.va rexpcho7 e4(p+) stor?

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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 arojw8m3,ickm(y3fyz 2e made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resista k3 mz,o3wf8mci(jyy2nce

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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 diametyz9e n9k 6)h ;,ug6ksh gd4jqoer and half the length of wire X. If wire X has a resistance of R then wigd jqskn g y96h,oue4 k96z);hre 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 rizgcq i: .; *j2l4iqetadius 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 bec tqi.ei:i4c*;z jgl q2ause 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 Thomashq/b3gb squ;moqf)2:zh o3/q Edison wants to make a brighter light bulb. He decides to mod2hfms)/q:hz gqbo3q b /uq;o3ify 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 cylindrical resistors are made of the same material. The length andi,w s4wae- l tdndpt z,.9ewv02xtf 5* rtv0sdtae.w ln*-,t exzf92w pw4d i,5adius 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 ufgw*v so.r6;1dpe *v of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combinatio eo*dw6.1u f*vvpr;sgn 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 accompaw x9ur rt0cn;,85pvfl -(ff0gu zpdy5nying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most near uy pf9p(g z5rl05f xcr,80u;wtf-dv nly:


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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. Ta r3lm(8a,sulg81t mphe three bulbs 1, 2, and 3 - r(gap1tlml,3a8 r8s umepresented 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 9( 5l1vr+owurzdqjy* current in all three resistors is equal, wh 1uvy( d*jr 95zrqwlo+ich 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 simple electric circuit cnbu56ia24e:e0 uoa lzp 1w/wbomposed of 5 identical light bulbs and 2 a e/enbu p2o5l6u4w 1wzab0: iflashlight 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 followin1 6e trxu eqw+jkt+)*cg statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have eqt e6eru)*w j+c+xq1tkual 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 tx0h*q85)naa c zhlzy9 + +qbfco a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. Ichq8hz+95*qyx+b nc0a) af z lf 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 coulombs will pass through the identified resistor ib--gceb tsxd(o, 55p en 5 seconds once the circuit was clost, b(ex5seo5dc - pg-bed?


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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 fhea02v erwc,9 ollowing simple circuit have the same resistance, which would dhv 0e2ec9 ,rawissipate 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 current thr6j,u5 i6tm tpgjqa8 f*ough the 6.0 Ω resistor is f6jj 6mtaq*85,pit gu 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 aclop0pe (; i9dre 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 the voltage;e d9p0cpl( oi 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 ba 7cxwmdyi:w (/ez5p /mttery. Suppose R1 has 2V across itc z:(wmxi we/pm/ yd57, 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.jc.*10tt(/n1p xco /qefgmd w What is the maximum value of the current under thqm*xej 1 p/tg/1 no0dwcc.(ftese 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 n)wre7 2h p8:zq0vzizto operate at 120 volwvz 0 rp8:eh2z)iz7nq ts?

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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 dissipatqt(i x wr+ re6xy(+)sying 36 wat (y t(w+x yiqer)s+x6rts 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 c /d zosy4 gs2z(t07gimarked "120 volt, 600 watt.” In( 2g0d4szizycto 7/gs normal 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 c)x1(t27nfph5tch de3k xqwe6 ircuit containing only three identical 6Ω resk)x2ph16ct3xdw f57(t eqhne istors?

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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 followin8s0.4v hpl qig da.tv.lt)w-o g equivalent resistances CANNOT be produced using all three reqv4tl0-h ti.l.oa .pvw)sd8gsistors?

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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 bd/ u0+ se92frmmr95n;zp ldske connected together in different configurations. If all three resistors are used in a circuit, how many different values m5 mk90nu9rzfsd/ ers;l +pd2of 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, +z/vu ge cen:w: b.;nuzxsp-:lk,p/j a total power P is dissipated in the circuit. :-b,; zl geesnp/:v/:nxz u pwuc+jk.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, havin4c *s7pnl 2 pab57ekngg resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is a* 7sgl45npn bck2p7e 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 ky,p r mu74is.9zf oj9neh.o+inp) i/that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of tikso) 7j+e,pfi/muz4n 9o9 ypn . .hriime 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 36v uu 6iss(ai1 pj(e,8j watts ofau j(8sejvu(1 spii6, 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 130vs hd i*m+ej,pz.;ppdiv0 9 b amperes of current when connected to 120 volts. If the price of electricity pdivmsh9v* ,j+ ;z0e0pibp.dis $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 lightrdmxi((uucf x+ct+3 ,bulb lit continuo+3 ,cx(xd( frutcu im+usly for 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.a57z(sdx*motdoq: 0gwfl;4 j 00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choiceox ql 7t 0zf4g* aw5dm;ojds:(s 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 500drel s.fgep u/. 24j;j 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 s.fr4/;eeg.pju l 2 djthe 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 battern b515nkkg f+ ziru+d5y is connected to four resistors to form a simple circuit as shown to the rigid+kzg5 +1u5nfr 5nbkht.
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 four resistors to form a si hgg .g6us9r y.ldrl7 l.ksg*.mple circuit as shown to the ri97 sgh rlr* .ls.6.dlk ugy.ggght.
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 idealui p;nk:ua6xt.fiu 1)*b+v,re e9 koh -t(wsd ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the -uk+ t.w,uxtv ebuii)eha p;91 f(sd:6orn*k 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 batte.qpjq3 q(om.zry, 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 azqo (p3qjmq. .mperes.
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 b2 hs(9fld qk:ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the hl :fs9 (k2dbqdiagram 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 rf ba6vx e1+lb5esistance? As6 bbvxe1 l+af5sume 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 resistance o2b v.vn/ y aqn1u05xwvf the circuit shown to the right with resis. / uyvxbn0 51na2vwvqtances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identich:dg y: qbrkwl *,hsbu3,p. n+a 6fvn4c86kecal resistors connected in a combination series andchnp* n+wcg:3,bvh8k d6sql kf. y:, 6ba4eru 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 ja.1yu wj)ck: shows five identical resistors connected in a combination seriesa1c) ykjuw. :j and 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 tl(a4 1ye2 sy )rewtm xj.);o+k ec2f)nk6ebyfhe bulbs are identical. Which bulb will be the brigfsfyxeyec;+e)tom2 )e4ajl w 2b k) 6 yn(1.rkhtest?


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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, a1 gfa;g*okk h3n ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in thg1 g 3khf*a;oke 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 resistors * f uwqnkmhxutk:* 6g; /*)c t(okv);tnsu-kvare connected as shown. With the switch open as shown in the diagram the ammeter r ktn;t k)*u*kxnf-wu 6umkv/tvco) sg: q;*h(eads 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 and th )iuggkfqbfg 7/*euq 3w2 7gq5ree resistors are connected as shown. With the sg7w2*3g qf)q gufg/7qbiuek5witch 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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