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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 existh y/f8rl;s qst+4z(xi s 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 field through the interior o8itqf(/; 4h syx r+lszf 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 parallztym u, 4,e+*sy pps9q;j8sqj kh*(dcel, the_________each resists+u j cjy(sm ,p8es*q;9q*ptk4hzyd ,or is 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 causesy(mvcuf i32 3hd2 pp.s the filament to become white hop2d. f 3m(cspu2ivyh 3t, 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 replaced w9l leo 4n9lb4n(j +oucith LEDs. LED is the acronym for which one of the+4(ncb4ouj9 lnloe 9 l 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 length L and cross-sectional area A. (qdlv 5-b: bjodie)y,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 -q e5jl,:boi v)b (dydthe 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 are made of the same ny,r4 fy(5g 94zhidxb6;hllk material. Wire II has twice the diameter and twice the length of I. If I has resist4h5yi , hdrf9;4lk6l gnb(yz xance 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 samek127 cjyspsp k.7xy0l1owu 1 q material but has twice the diameter and half the length of wire X. If wire X has a resistance of R t 7psysjpk1o2y w.k0q1ulc7 x1hen 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 :e7s ;qnlnd4zd5uyj /L and radius r. This piece of material is then drawn so that it is a: u 7 5d4dl/eq;ynjszn cylinder with new length 2L. What 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 wwna(b )lp8le(ants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to ma b(8(n)wlaepl ke 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 mad jui*og(q( ;agosiu.fc: j0*b e of the same material. The length and radius of each resistob o0 g*jq j (oaiuf.:*(us;cigr 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 battery in(: rzop 3ayr8/si(prn the following way: “Two resistors are connected in series. This combination of two resistors is connected in p:sona8 prir (/ 3yzp(rarallel 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 resistanx bqt4n3q3q d; w7jz8sce 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.04; qtwj 3qbsx3ndq8 z70 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 compound cir-a)n8r-;qx4x rjoxkkcuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors inj)nxaq4-o; xkr8-xrk 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 e 6sl8bm,z5jyq + c6bbelectrical circuit at the right. If the current in all three resistors is equal, which of the following stb,e jmbl+y5 bz6c8s q6atements 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 0zjm 1 dim4dknu0 o *+*aor pn*4pfts0right represents a simple electric circuit composed of 5 iden1* mp jst0d+zma0ui on *4*k4p0ofdnrtical light bulbs and 2 flashlight 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 following statements is NOT truer3vnt 0+6n9 hjvcwb2 o concerning the simple circuit shown where resistors R1, R2 and R3 are hhrtv6 +novnj90cb32 w ave 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 series to a battery( 7)rkjbg*wsl c* (*:0 gsqkmcs+wucb. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbsr:gclsk gjk)s qm(*ccbb* 0+s *u 7w(w 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 wi(vyw d2 0,7eaqjq alsch* v +hhak63d.ll pass through the identified resistor in 5 a*v2. 7 av6hwslqeh c(qy ,hdaj0+dk 3seconds 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 va k*er)szt1*same resistance, which wtr1s k*ze *)vaould 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 thrznbm47w5 t:*3 5u bqzux 5iucmough the 6.0 Ω resistor is 1.0 A. What nubiqz3cum m 5z 7btu55*:xw4is 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 cobezm0 np6*8 sgnnected 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. Whagm 6bzp*0nes8 t 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 parmr+53kzfo( lsz;l5wt allel to a battery. Suppose R1 has 2V across it, (l;+tz5z rlkfm3wo5s 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 x36eb9mz jyuhri(gi( ;8xsy la*aqz3o/ w 86o120 volts. What is the maximum value of3mqowg b 686 3rh*e;la/ ijsz 9oyxa( yuzx(i8 the current under 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 -y;e8lup x4at (1pig rlightbulb designed to operate at 120 r4eg x (1- tl;8yiauppvolts?

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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 mz0kdjd9a; y3that is dissipating 36 watts of powedzk9j;30yd mar?

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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 may/g zdq796* vg iqn2zvrked "120 volt, 600 watt.” In normal use, the cur9*/y qq2iv 6g7nzz vdgrent 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 f)vzv4c r w0a6following resistances could NOT be produced by a circuit containing only three identical 6Ω re4 vzwr0)vca 6fsistors?

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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 khimo q) e7/:7j*ywr ;n3qs gi1.0 Ω resistors. Which of the following equivalent resistanceir wqjm:/yh7*qn kg i)s3;7oes 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 of3 ykwsy 0bef:xp a7-h+ different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can bekyyes :0x3p+-bf h aw7 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 power P is dv,st 6gbl 7dw1 cj,us,issipated in the circuit. 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 batteryctbg, 7d,s6uwlvs1j , 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 1)r,/5 (k*q xemuqzg(6oe r-fb* j sjiai+hrh parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances iis emrr1qf,6hb x jiz+(kj( /)5 *qh*euo-gr as 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 desig+1r- +y8 cdexh 2+i5k otieeflned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would 52doi1c 8er-ht e +kxy f++elitake 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 throube7qk) n8tta 9a 9v,ysgh a 4 ohm resistor that is dissipating 36 watts of pova,a79 qt)ebk t 89ysnwer?

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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 wg83hy)x k niibp/kgnt 0qb -(.hen connected to 120 volt gnn /ibyxq8h0kp .g( it-k3)bs. If 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 would it cost to keep a 10v(hzybyik b 94/yam ++4 pmq3u0W lightbulb lit continuously for 1 year at a rate ofa i9 h/p+b +ymv3qb(uzmy4y4k $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 j9rsyz7bq.xu0z2bdo 7 c1 1oo 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 resistance of the lig.0z 1cd oq1jry7 zx2obsu7ob9htbulb?

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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 iny:5 n:o8hphx m a 12h:ypm8oh:n 5x0 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 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 connecsygzlh0 mtv; s:m;*xqny./2 p ted to four resistors to form a simple circuit as shown to sy snvt*/. :;2zqxpmmgy;l0hthe 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 to four resistors to form a si-tbw8+*ke jacej.a/ayy, s : umple circuit as sh jy ab/ t,wy:+ ka-ec.j*easu8own to the 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 cgb m)j.ckrkq + r 5fvq9bs(4gb,i/0g ideal ammeter, a switch and three resistors are connected as shown. Wicr,vc)jq q9+ s/fg0kbrb.5g4imgkb(th 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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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 hm3tv t/h;l(is(tytsv md-w/m);ld j a*v/v,three resistors are connected as shown. With the switch o,; /d3vi ;(/s-w dljts)mh /l vmttma* tvvhy(pen 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 sy ql/oxyr/ uaa71bf rc+42 z6lwitch and three resistors are connectefx r4yl+127 c6 /ybuzraaloq/ d 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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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 ac br+ vy.bv t(w.mp/kn)*8riright, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistan8ptn.y*.bm +rab)kvicrv (/w ce, 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 t8s pjfr,, d2.c t ewp (l z4u0.+whyh+ogg7daxhe right with resistg2zc,. le7 d+u +.rw0t j8pohwgyad(x s4fh,pances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistorplej 5bg4he4 ih)v -0is connected in a combination series and parallel circuit to a h g lbv4-i4hipe0)ej5voltage 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 c :og39h7 qasg +qa7fmf wnnk75c5t;xidentical resistors connected in a combination ser7as ak +og3:nh mqw7tc g;q9f5xcn7f5ies 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 tbrgkapj 5h 5ip8u55x (he bulbs are identical. Which bulb will be the brighteugk (5x5ra58j hpb5ipst?


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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, 6ovtxl44i/ jv) fs3xy an ideal ammeter, a switch and three resistors are connected as shown. With the switch /osxvjlft4 6 )3yxiv4open 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 ideal ammeter, a switch and thre+s70uec i 3y-0hfbw.6 biexs4tdzg 1 fe resistors are connected as shown. With the switch open as shown in the getxh3 s.bd i+ i0-61ywecff 0s4 b7zudiagram 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 ideal ammeter, a switch and three resistors are3 / mev mv88bk d1ljhcc-99spq connected apj831cchkve/q9 -lmmd b s98vs 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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    总分:50分 及格:30分 时间:不限时
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