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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 )ammp p, *; d do.aerpoc7*c(g5fk:k bin the metal resistor connected to the batte bprm) o:(f ka.dck m*poa,pc7; 5e*dgry. 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 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 resistg8/mz .ymrcc7 j mh*w)ors are connected in parallel, the_________each resistor ish/ mwz8mc .r y7*c)jmg 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 thin filament wire of a lightbulb causes t)txwh8 pc+3zgmc0 ,49at) u sz)ql lrfhe filament to become white hot, while the larger wires connectedwrq+0h)tmp4 scfz t9 a)c g x,zul38)l 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 replaced with LEDs. LEDvfo1 t;l w9jv8 -3hys,h45t9 cdfpr vr is the acronym for which ontjy; 89pvwt sv l9h3d,-focr1vh5 4 rfe 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 gm2y0b.)uh advo/( h byraphite resistor has length L and cross-sectional area A. It is to be plhhud)(m b yvy/b02 o.aaced 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?

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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 wire3tw,fw5ru;hs7uqvw 1 II are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has 7 h1swvu;3frt w5w,quresistance

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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 qs;v(n:tla1y but has twice the diameter and half the length of wire X. If wire X has a resa:lytv n;1 (sqistance 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 o o:yonl8ra40)u 6v ydnf material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this matenulony0yrd) v oa: 648rial 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 lightxw.mh86 ya /8hz8*ouhkbi uj3 bulb. He decides to modify the .8hy8uio b3j*uz/h8 xakw mh6 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 cylindricaw,l4ejdgkj c3:buft 58/jt d 5l resistors are made of the same material. The length and8 5j3:ulj wd kt54/bft,decg j radius 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 resistance R, are connected to a b gcuxv/+tjr,i,bo9 zao ux(x;9*l. oeattery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel too*o9x.t(r ,+gezbuvli ocx 9a;/xu ,j 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 o.cde dd2/)ey ..au+tv rmb)fthe accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA.)d.vm aub+r oetcf ../ 2)eydd 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 compo7hh*c )a8np *kmnn5nt und circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the dia8pkhntn5 )a7* n mhc*ngram
- 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 curre2/3 oyjkafep s :s:(hw-p5gtdnt in all three resistors is equal, which of the following sta(t:/ 5-a swesf3: kpdpyo2g hjtements 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 righc4 z2gr,,bgfwt represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cew 4frc,, g2zgblls. 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 concerning thhiy+qo/ hs 8))l0x veee simple circuit shown whe)/e) ol 0s+hvhi8qyxere 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 co g0xcp+pa1h:cpq 7j0qnnected in series 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 otq c xc7pp:ag+jp0 0qh1her 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 p8svt i)7/t dhlass through the identified resistor in 5 second87tlv/ih dst )s 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 havnd vu mkfd9,.3tu)ml:y9 lurpw7) gc6e the same resistance, w,rcupyuw) 7t. m g:k l63ful9d m)9dvnhich 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, the current through the 6.0 7p4b.hlsx ths,7jg :kΩ resistor is 1.0 A. What is the powerkshjb g p.4 lt,77xhs: 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 ad8 l.cb yc*7kmre connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 diss*l m.c cb87dykipates 6.0 W 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 andRb hm, owah0(irg1 jf3gcn9.)z3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and zf,gc .b0j)1n9(rih hoaw3 gm 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. bupfcpi72jn h,*ql0cku3* 7wr0l vv: What is the maximum value of the current undp*vib:02p*u hjcfv wcql0 u7l3k,7n rer 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 lightbulb designed to operate at 4.2iasbeqw 3;95cn q 8hi vwfu120 volts?e5w.9u fh4cb3wqi 2 qns;iv8a

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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 resitj/c mk2jo c4 /v rjj*5bl;/sistor that is dissipating 36 watts of powert2klvb /r/ 5j m*socjj/cij 4;?

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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 clotxa,+7 ys(o8ke:w )x :sphuxj1cq/oabhes is marked "120 volt, 600 watt.” In no)ubo/: xqj,x y( 8ha7 s +so1:pwxckearmal 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 r 6)-lbyozi)yk .5e0smop5dbxesistances could NOT be produced by a circuit containing only three idep bse60lk)y).y-x 5o mzb 5iodntical 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 following xj.vak6s(ht aom0 7g azi/l 8lw jk4*6equivalent resistancev o67la ms8wjj.(xg /ta6iz la4h0*kks 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 valuei13j7-dz sld-d6s 3fva y7wzcs can be connected together in different configurations. If all three resistors are use 6f7s-dsa3 7-d1zz yc3 vdjilwd 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 connected to a battery, a t ds/dkrp7 -o; wu/zr(kotal 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 ba ud/r7 rwkk(poz-s/d; ttery? 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 convh(an cp1(w77 ,j ovfenected in parallel, the equivalent resistance of the combination is 5Ω . Which ofnw(c 7h7fjv p1(ove,a 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 resistance o1e v5 jiy;owqp9q;:rjo; +sv lf 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of waw ;vp+:5ver9jyil ;o jqo;q 1ster 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 disioh 0 ip5ogi)6sipating 36 watts of goo50iipi 6 h)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 hein(7ntwr ovz ne,.*-zater draws 13 amperes of current when connected to 120 volts. Ifzzrv- not(*inw ne ,7. 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 wouch z8n+z(4w yold it cost to keep a 100W lightbulb lit continuously fo8 (cyzo+4hzn wr 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 4.00 ,1egin38mh k;tdmlis0k) a(jA through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of)8,m gji;anl (ti3h d10skmke 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 watts inukh 6n(4ptv yda r;p7.p15p6hvtv/ ke 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 berp p 1 n.kv76e4vthpvk(yd;u5t/h6ap 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 fo5g-t9 cnuhkd /rm a simple circuit as shown to g-nu9/cdk th5the 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 to6q br;mvz1dmls7wh6nlw0 m89 bg 6x2j four resistors to form a simple circuit as shown to thevn1;bbg6 mzhjw 09qrxd7m s l2wl6m68 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 resistors are conn4) /e jwcp 1l2lskz-qoected as shown. With the switch open as shown in th cpqlw/z)kejslo41- 2 e 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 am4+;6 ed pjpz;1a ghzs3enoh i,60 kdrcmeter, a switch and three resistors are connected as shown.+p pc6njoi;0ehe,;dr4a z6 d3khz s1g 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 ammeter, a switch and three res; ws.d crd)o*ks6a(p9cg1q z qistors are connected as shown. With the switch open as shqcosdps)1r*qz g 9 a;c6kw.(down 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 shve u8dx26/d4(eqbi6ko qm b; kown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resis4(; /em8k 2 odx6biuvq6d qekbtors 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 t3r xfs),* o3 abj)sgkjhe circuit shown to the right with resistances sjfjkxb)g 3,os)3*ar $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resircfx--169 azkkt3 ar6k+gx ut stors connected in a combination series and xt u1x63r-9c kzkg- a6r+f aktparallel 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 connected in a c69yc+qwt5b snombination series and parallel circuit to a v5qb c6tn ws9+yoltage 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 i u44 /ctpq+3tld5dnatdentical. Which bulb will be the bright+n5ct tdtl4u 3 4pdaq/est?


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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 6hwq/7vt g9 as anmp;,+7s pqn4w j/qbconnected as shown. With the switch open as showw9gh qq6p/4jqs wp a7b/mavs; n+nt7,n 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 thr dflp51fbp1tx ;57:ze//mohjan 5 eucee resistors are connected as shown. With the switch open /xc:pbfjz1;n dpete/5m 17ho l55ufaas 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 idq7e l hv,9n2rheal ammeter, a switch and three resistors are connected as v9,2 rl7en qhhshown. 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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