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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 cojqh15oc6rr1 xnnected 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 j xc qho16r51rthe 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, thbay ( j;3r*q85sefveym :;z r cmq:a;ee_________each resistor ircy(:je8fbe5r;q3ea sy v q;z;m: a*ms 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 cw)7hhs f y .nvwkpgy:37mojjp.;ix58auses the filament to become white hot, while the larger wires connected to the lightbh.7i 5np 3fw x.)wjk:h yy7ojg;s8 vpmulb 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 LEDpn hl fb:vs9e7 ;8fxd;s. LED is the acronym for which one of the follo7v:pxbnhfsl; e; f d98wing 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 r(ozqqg5- vb7bcen .c79 ff4cuesistor has length 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 resistivbz qfu5cecqv49nbf(. g7-7o city 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 wir56wmuikk kyvut+.vq*6a q*; ye II are made of the same material. Wire II has twice the diameter and twice the length of I. If I has ruk6umtqwv*+va .ki 6y;y* k q5esistance 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)e047 /bj;np,idx jjm ef(wy t has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resijde7 ;)xj4ipt ,0(fj b enwmy/stance 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 ,s:i)ov-l:nkg dowu3vm u0g (has length L and radius 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 benig,wg l o-)o0v :km s(udu:3vcause 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 Eqsq8w;rhkjg2gu 9)t4e (7sfcdison wants 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 lightbu gc(qs7gs2 tkw)4f;r u9q8hejlb 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 leq 3 f/dhgwe60angth and radius of each resistor is0 hw6a/3qdeg f:
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 resist-zq8okxl052hc 6 sii sance R, are 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 resistors is connected in series to a fourth resistor.” What is the equivalent resistance of t-q2 cossi8 6 05xkizlhhis 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 accompanihaxd;t, +qdr 6l)s(hying 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 n;rhxi6(d h,da+s q )tlearly:


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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 ci *zyj:1t+ 3cpr:c/(g , cnxtvnff wj3brcuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the dicc :f3:njyjx+cp/rz*tb,ngt1wf ( v 3 agram
- 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 tiw xd / n(udocj3bp4+4he current in all three resistors is equal, which of thenu +bid/(do pjc4w 43x 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 compo d knpuu,;ss4,sed of 5 identical light bulbs and 2 flashlight cells. Which bulb sk,4 s,ndu;up(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 yxoslk)0o /xd w b9h;bh9vb*-concerning the simple circuit shown where resisv)9ox9y khso w *bl/ xb-0;hdbtors 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 Xd ep;mqvbo 8k8nn-:0 fhw3ai) andY are connected 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 other8i)8 bnea;dwo h qm-vp30fn:k 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 tht og : 53h+j(tsbhh:virough the identified resistor in 5 seconds once the circuhv( :b53+isg joht:thit 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 t1. f(4cet)w a sa0ve1c uq;flfhe resistors in the following simple circuit have the same resistana11;. 0tvs uewcfa leffqc)(4 ce, which 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 accompak bj+r,plph.-nying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the pbhjpr+-pk , .lower 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 connected in serieai80(n(gncr5dfw 2 zg/k5 ktes to a battery. Suppose R1 carries a currekwz05(i tac5dnf/( gn28e k rgnt of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 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 andR3 are connected; la 7w)a xbzhkl6:4pq in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the currenwkl67ah)z:q ; 4blpaxt 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. What is the maximu w7*y7bt (oykbm value of the current under thestbkyb*y7 7ow (e 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 p/fypx,*u )/df g ed,qto operate at 120 vffq/g,pup,edxd )*y/ olts?

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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 throu:h .8beu1f4- 3lwv zn 9xzwmp0ugy; rwgh a 4 ohm resistor that is dissipating 36 watts of po -1pw.z9gwf 3w y zrh;8u elxu04nbm:vwer?

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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 us8h a9s d*u5x g .cksty9*3ipudn) y;djed to press clothes is marked "120 volt, 600 watt.” In norma)8x.sdu*p t ayjns99 kcd g5h3ydui;*l 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 frjwm9oy/ew3g 7)r*fy/tr:smt0t d7w; l; r jcollowing resistances could NOT be produced by a circuit containing only three identical 6Ω w/:gdwjyo9t7me7; 0fc)tjmr* s3r w r;rt ly/ 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 1.0mor1x3bgw j0hl zo-: ; Ω resistors. Which of the following equivalent resistances CANNOT be produced usimrxgwlz:0boo -; 31hjng 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 differenz1k9kw+ m( 1az4iaopi t values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistz4wa kip 1( kmo1ai9+zance 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 total powe/tr62 veehp/62hfxqafw y3n4 r 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 batt62eqah3y /4f/p e tr2 whx6vnfery? 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 connected in d8di, xdy:ocngyhtz mc32 e*.g;6 :ipparallel, the equivalent redi y6 .d8tdecg; ,xnoyih: p2:*mzcg3sistance of the combination is 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 that it has a resistance of 12Ω when nw/6p se82uwdoperating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of wat2/6sn 8uwdw peer 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 resin7*60yc8/s nn lp n*tkvhz8 tw+0pzaqstor that is dissipating 36 watts of pow+ta80tzc nhk8l n6p vys*pnz/7qwn0 *er?

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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 conneeo t(r16nz vc6z l8t89wg7bvlcted to 120 volts. If the pricl9e(7n t18ocw vztv8z6gr6b le 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 k7b q:3 9xzpi:bv4qugueep a 100W lightbulb lit continuously for 1 year at a ra b v:4qp73ui :xbqz9ugte 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 oexv9k 8n9rvx4f 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the rve v8nx94k9rxesistance 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 rate8rjf+ ;2bvsy cd at 500 watts in a 120 V circuit. If all comrjc2+f ;vs8 byputers 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 batteryfez(2nr x;-t*hqz w*n is connected to four resistors to form a simple circuit asfq**zxh;-nn wer(tz 2 shown to 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 is94 mjngwo zpe2xb 6h-2bdw8(h connected to four resistors to form a simple circuit as shown to the right.z(bnjw8bd 6eo2x9mh4h g-pw 2
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 c8 2 ik2v/psqo f*eqhzh b0(+bresistors are connected as shown. With the switch open as shown in the diaghb8hq/ 2coepb2s*(+qi v k0fzram 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 ammeter, a switch and+d.a l)rhk:wtu* /wzz three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampe.w*khu+d) tzazw: l/ rres.
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 yu mgmjz/o4u6)2v y-aresistors are connected as show- au2gm6yuz 4) yjmvo/n. 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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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 equivalenrrwo wkuf,v 69*e*/ qrt resistance? Assume that all wires are ideal, the battery has no internal resistancer *of/uwvwkr 69r,*qe, 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 .xfn yaqlb6v :/:pju*ig3gj 55 ti0uf right with res n 3giyibjt6lju .qfxf *a::u0/ v5gp5istances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 bel-cr 2pg)5hz rrow shows five identical resistors connected in a combination series and parallel circuit toc2) hprzg-5 rr 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 i;)n)u)e lr,bqni9snu* u r dg:n a combination series and parallel circui uulr;n),sqd)nn:ei* g9 br)ut 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 kr8sv ,gtq7ycl+g(wk e 4 6d,c qs6d:w are identical. Which bulb will be tte+r78wdsdgq(qsw kc6y 64l,:,c v kghe 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 idealyd p5 (.5rned)aiww5q+p/ z df ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter re/)izf pn5e.y (wqrd5 5+ddpawads 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 thrhrhxs 2h 8j s b 6:nv(-cfp2rxfra)h4-ee resistors are connected as shown. With the switch open as shown in the dn h)xf v:r224brhjh-c sh afx(68ps-riagram 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, u(oy;p2y ey+ban ideal ammeter, a switch and three resistors are connected as shown. With the switch open;(oe yyyb p2+u 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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