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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 cur ,nq r e86f2j/a1g/letzhya-mwq))furent exists 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 l)afyq-6,n8ge)2q ar1 mfe tu/w zhj/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 aalgz/7fvb f4 ,re connected in parallel, the_________each resistor i g4,l/bfa7vzf s 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 light4 o d)83trogsxbulb causes the filament to become white hot, while the larger wires connected to the ligho3r )gd4txs8otbulb 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 awp9lx/y hc2(LEDs. LED is the ac/px l(ah2w c9yronym 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 cross-sectional area A. rtw +w8zk ud1v-.laz.It is to be placed into a circuit, but it first must be cut in half so that8 z1twz. + uvk-.awdrl 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 wire II are made of the same material. Wire II has twice the l5ineyd),bs4m5 ev9 w diametdn m59see)i 45byvwl,er and twice the length of I. If I has resistance 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 has twice the diameter 79cj3 6avk cmfand half the length of wire X. If wire X has a resistance o7jfvca3 mck96 f 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,e .+kyth eog06 nmr2t radius r. This piece of material is then drawn so that itgtr ,06y.2ot+mkn e he is a 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 Edceed4t1sce* 9olx7+t ison 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 4cc9e7t 1e ltoe+d *sxmake 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 ande .g/)cw8uk ) 7a c-r/m/ofmw *icwqtw c-wf))gqetr.// 7m*uiw m awoc ck 8/wradius 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 tyy6(v*.h--g 1gu5jrg gfkzs connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors iz5vj htuyrs*g(y gg-k- 6 g.f1s 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 circuit diagram has internal res tgc(j5:/w nqaistance 10.0 kW and the ammeter has internal resis tgqc(a/:5w njtance 25.0 ohm. The ammeter reading is 1.00 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 circuit shown to the riq,h944 mdtzn qx9bd7vght. The three bulbs 1, 2, and 3 - represented as resish9 9zq q447,mdxnbtdv tors 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 therm+v0kc33gelj ) h,z h current in all three resis30m +lrhz3hj , cvk)getors is 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 circuit composed3sw2zy)( gcxc of 5 identical light bulbs and 2 flashlight c c(3cgsyx2z)wells. 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 folloa)+:pc z*mgrx9i7m y swing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equa7r*cm )ypg 9+x:zamisl 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 0g*uiz,:r9s efad8a ni s 87goX 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 conngo:d87s,gs i8 ira uzafn*0e9 ected 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 identifj8 o*o3i7*l+nlqzag fied resistor in 5 8oajo+*l3gn iq7* zlf seconds 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 vj;-h 3c(jalv4lco q1p,;ptf in the following simple circuit have the same resistance, which would dissipate the gre4av - ;lj cpj ,v(pftq1h3;locatest 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 thr ucfwfr2m 4/:1y6oaoyough the 6.0 Ω resistor is 1.0 A. W /mc6 ou f4r1yy2:aofwhat 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 are ct-gn- y. 99bzs6zt wczonnected in series to a battery. Suppose R1 carries a current of 2.0 A, Rntbz96 s- zg-z .9tywc2 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 in ap:d3v3y mrhlk 9r/ 9fparallel to a battery. Suppose R1 dr3fpm v3h lk:99ar/y 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 th2zv;)emz .hf ye maximum value of the current un.hmz;)2y ezv fder 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 operat8 dpynh3wf z/djn 1m**e at 120 volts1z8n nd p*y3jh/fwd* m?

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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 dissipatzyc7l a0q.1zmoa msbw:,u4, ying 36 watts oa,mqb z. :l4wscmyua07z y,o1f 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 preys4d-( lc81az 5/tmi i4ginjw6wjz x lt /:-boss clothes is marked "120 volt, 600 watt.” In normal use, the / -osz/(:1ilicdl nt xjza bi gyw4mtj-8w654current 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 foc;hs6dc d.hpggebkd - 4m 14)fllowing resistances could NOT be produced by a circuit containing onl4c gdf6ck;)b-4.p sh edhmg1dy three identical 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 equivalenu2;cb; qxqf2jt resistances CANNOT be produced using all tcf2; xj;qbqu2 hree 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 b(;o2zzkm3sdly5 k 0dirx2eq -e connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistskdor5y2 -;l d 2m0z3k(iz qxeance 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 tota0t7(0 :ctsa fvf3ef)l*lra agl 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 the intersrf0:cvla 3tf 7 f*l0a)t(eag nal 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,beri8. -kggxdm3k ya z+ 7s6p5 are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistanc7zsk-g +g.m85i6ypr 3bae xkdes 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 oyin dk 2*(mqf+um4ko a2wo1p2f 12Ω when operati1y* q npk fko 2owm+(2uam4id2ng at 120 volts. What is the minimum 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 resistog.pjz.e q(k x3r that is dissipating 36 watts.( ekg.xjzq 3p of 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 drawcjy3 .aci+izxrbh,7043 orezs 13 amperes of current when connected to 120 volts. If the price + 7zi3y0 ja3xcihrocb.r4z,e 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 wouoby vr vg,:zm ):q)o:l f-b4jvld it cost to keep a 100W lightbulb lit continuou-l)zjv4qo) gr:ybv:: vbm ,f osly 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 4.00 A through a lightbulb results in a power of um 8)iml- 1 ngo*3fyat24.0 W assymu*)mf 8l i og-13tnaociated with the bulb. Which one of 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 o w):zm1:sd:ggtq* +oe ph9 fzof a family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, whatofozetz h:+d mg):s1:pqgw9* 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 conft) e bdcp xzyc7cic cn yoy ;hp/i;9a7((-g-(nected to four resistors to form a simple circuit as;cc/ noax)(p(ce;gicb-y - 7 hyiyc9zp ( dt7f 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 is connected to f (:9eygn+l(dru 2tx whour resistors to form a simple circuit as sho rt2:+(n hdlxu9wyge(wn 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 ideal ammeter, a switch and three resistors are 5ymaxr zc:1*s ;xx-d.b f,qxaconnected as shown. With the switch open as shown in the diagram th.aa;y1-q5xxx,zmx :* fsrbdc e 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 battecsk.iivt31 op8ib6iocc s y:jd;x1*s ui 6- g1ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagrap 6cdiji1oci.ig : i s-;xu118ssykvo 6*3tcbm 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 resistors are cotsi06i63c vjhnnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.hv60iji t6 cs3
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, wpo*.:wd-z g8vmy r,b vhat is the equivalent resistance? Assume that all z*d. oyrgv8-wp, vmb: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 :us mx8h t-9r4. gcynzof the circuit shown to the right with resistances 9u:.tzgnc4y8-h msxr$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistfio:nq7ts/, i zlus+ c2eoz0/ ors connected in a combination series and parallel cile2iqs0s7/o:, c/of i +z tnuzrcuit 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 i3al3b jr+kola /0 ti-five identical resistors connected in a combination series and p+tajolr/a3 -k bi0i3larallel 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 di ) (rf*9wkycqbagram, all of the bulbs are identical. Which bulb will be the bri(wfq k9yr)*bc ghtest?


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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*efg a :c( 4,xowps,ygu4gr p- resistors are connected as shown. With the switchsgroa4 u x,-ecy,4(pw :*pggf 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, y+ayp ivr*5b5an ideal ammeter, a switch and three resistors are connecte ia55bpy+*ry vd 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 battery, an ideal ammeter, a swivy(ih w k :h,-otaz*6ltch and three resistors are connecte zw: l v6-*ohty,kai(hd 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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