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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 the2e-gl 99tnm hot)a rk* 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 of the resiarh99- gnl 2etmk)o t*stor?


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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 para/v b;exs x.jvtb,m7rnpe+x8+llel, the_________each resistor is t ;v etn+,exmv87bjp.b xxrs/+he 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 thr9hz hx fr2i)u8f9pr7y ough the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens b9r 9r8)2uzx7y ffi hphecause

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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 lig;+bkibnrrn8 1 hts are being replaced with LEDs. LED is the acrbr; 8+nkbin1 ronym for which 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 length L and lj za:,0y iq2ku* q 7dnj:(ilfcross-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: jqu* n7(,0dk zyfli:ai 2jql 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 material. Wire II has twice thfu jz.clyr1 4/ky bha8/3/zqke diameter and twice the length of I. If I has resistan/ 3qfyjz 4ky8hcl1/a/b.rz ukce 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 gt)bj s36 q+q.bgoio 1of the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R tqgi o+.g o6qt )jb3b1shen 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 4*6vchp y8ttv hi0zg2 resistor 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 r4vct*20 pygv hh6 i8ztesistance 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 a1mvy kg+vb 3h+ brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given vol 3b+yhvv+k mg1tage?


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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 mater+ qvkso.m6w6 k c q9kyd53 7 rx9cp;ucstp3j+tial. The length and radius of each resistorc6 y3su6msc 5+3rpkp.w; q+ tqx9vko 9 cdk7jt 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 conne 2d+(5pee w:ae-vzbvc cted to a battery in the following way: “Two resistors a5e(cw2z e +bp:evv d-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 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 circuu5j 9*lqvo uwm90wg.git 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 nearly:wuum *wj5g99 0lvoq .g


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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. hqr,q13krx*.s8z az .8//*cboeqb 0qtqfz caThe three bulbs 1, 2, and 3 - represented as resistors in the diagram br,cc 8 /ha.e1 bq *z*tfx0qzqsqar/kq 8o3z.
- 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 elq-q+gr7 +o lrrlg 9o:dectrical circuit at the right. If the current in all three resistors g +d:g+-9qoorr7 l lqris equal, which 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 cih96 8imzy hcqp0:bif4 sxb;z 7rcuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb hf 4s 09zhp 6xcqmyb7zb8i;i:(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 concerninyg )37g pk5*ranf9vt ag the simple circuit shown where resistors R1, R2 and R3 are have equ tn 5a)*a gv93gkfyr7pal 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 1) agycjzoxp07 t/6rl andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ide/6oagpy) 7z0j lcr t1xal. If 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 lwhiiz2 8xh .: will pass through the identified resistor in 5 seconds once the .82xihliz :w hcircuit 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 hje0liur)c;: xs7ade3,t3wzsame resish)r0 e;u3l c3e, 7dasi :zjxwttance, 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 accompanyinga3de4+n *,h -o giris x)p9srh3:ihiz circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power d,x*ize 3)s ip9a ios3rigrh-:nh+4hsupply 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, antz828+ k5dt;fn war ind R3 are 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 w+izkr t8n2;da8fnt5is 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 parallel to )1ggtbw9. auca battery. Suppose bwg a.)ct19guR1 has 2V across it, 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. What is t- ib3.yw)tar q(voc044b ffalhe maximum value of l 4.f 0 a-vwbbqac rf(4tyi3)othe 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 lighbu*blt ao+ eed -85aw7 a0ew;btbulb designed to operate at 120 ba-taow8al +0;we e5edb7*b uvolts?

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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 throusbfm 6*,5 pwlv jzft;:gh a 4 ohm resistor that is dissipating 36 watt5lzv6 s p*fbt,j;f:w ms 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 jyw vgp838b6kmarked "120 volt, 600 watt.” Ing3868 byv wpjk 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 couo 08exvh08 :usc tuez flxy2+6ld NOT be produced by a circuit containing only three identczeyf0vx e u 2+oxth0l8u:86sical 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 9r.,+;qy;lyvnnelosl(i0z e of the following equivalent resistancessollen +qe.0y(rz y9 i;,l;nv 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 values can be connected to97t m3xdq wp :2/xgoud4u k-2m.rs0 fanhn f9jgether in different configurations. If all three resistors are used in a circuit, how many different values of tot3 2qt/ fhgd:4mf09p- x7r2n akjdu .9musnwoxal 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 baa67fywcnp 2 jqu ;+.vcttery, a total 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 battery? Assume thc2.+ vnqup7 wc af6y;je 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 resista m9dby/p7r-oj nce R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following staj y /dr7mp-9botements 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 hasm vii kn4751i:b faxc6 a resistance of 12Ω when operating at 120 volts. What is the minimum x mv1476abi ci f5kni: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 resistor that is dissiliz*fea. 4h3dr;gg l 0pating 36 watts of p4i;e df. rz*0ll ggha3ower?

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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 co v4z; lo0l6(q rmggm/cnnected to 120 volts. If the prizvq(glmc4gl / o6mr0;ce 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 cor, iihgxs rnviqv5,-+m ofz9)lm:)2pst to keep a 100W lightbulb lit continuously for 1 yeag)f2l q- :v,+mi5irzhpix ,rv smno)9r 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 currpy n3u .mvk.ve1;flbq ha6) f9ent of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices9fve)q 6.; y.mpubn lf3 hkv1a 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 wd :( jultvrvf y*,9 :of(pan6a family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single :(nj6,r(: a*d v9fvlwfo tupycircuit 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 connected +.hp(jc+, wnk t, 3h uh5qpfqdto four resistors to form a simple circuit as shown to the right. 5,tc+ kpd3j hhw +,uqhn .qpf(
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 c j(f6q*2ndr9 d*win oyonnected to four resistors to form a simple circuit as shown to the righ*2d(odr jn*9qy6wifn t.
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, xnlrsw c+7bq h0t-3+la switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amq xncltlb03r7+s +h-w peres.
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 three resiu98x;z)ix ppmt+2pm+g * graistors are connected as shown. With the switch open as shown in the diagram t*9+ tipg +;)mpa uxp2zr8ixmg he 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 resistors -e as i1jedrm6-j4zhrdm 62 (2myxeh 9are connected as shown- -2 (ejyrjedm2hxz s6d 6 emi4mra1h9. 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 *2/g0wsx qjzg q+ry7v bv,*m5gmd/ou to the right, what is the equivalent resistance? Assume that all wires are ideal, thg,q bv*vzwmmx+ys/ uj /075*2 g rgodqe 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 of the c/rw y ghtuylv/z ql)+4 s)5g2lircuit shown to the right with resistany llyr)vs/hq g zg /l+52t)4wuces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identicj972b+f 7smesh 9e qh-eq(v yial resistors connected in a combinationyhe qe 7 bqs9f9i7h-(s2jm+ve 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 five identical resistors connect,gn.yr o lyhvh r m5nq,l(.-y2(bq*ghed in a combination series and parallel circuit to a voltage source. byl.l(nvhnyr, mo5 q.gyh*2 gq h(r,-
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 circul l5/) ev vl2uum t ltr21x8:ddg35b50jruuggit diagram, all of the bulbs are identical. Which bulb will be the brightest? )5l823 lvglrg21jg0mxurdv /u:b5utdle5tu


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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 j(vnank;( p .iresistors are connected as ;(k n.jvnpi(ashown. With 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal ammeterm5t *bdd qps70, a switch and three resistors are connec0d5 m tbdsq7*pted as shown. 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal batte 9 sb55nykhnl.ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagra 55nhnlk 9bs.ym the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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