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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 s5r9,1uoc rxc-roky0k b,p 1jkrtz+s6 hown, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the rer1 6+szyuop-rj kt k5,bc r0x o9r1c,ksistor 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 resistors are connf-ca4 18l8 (:vx hf0tou8kifj jqjf* mected in parallel, the_________each resistor is the same.:h81*fjm(qj j40of -uf8tl civaf8x k

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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 li. s3g/;w vbnomghtbulb causes the filament to become white hot, while the 3onwgb.m/ s;vlarger 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 houuu/a8qh 9+kag sehold lights are being replaced with LEDs. LED is the acronym for which ok8+9 u/hgua qane 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 grys (;v4 +r 9lrqusa-rqaphite resistor 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 rqs(aqv+; ulr49r s-ynew 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 u93vd 8wlchx9uas(u0t 3g io8are made of the same material. Wire II has twice the diamei vg8oul89hsu c0w( 9dt 33xauter 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 zgq7j,/rc+;rq t65r u/op bjqrh z7r+the same material but has twice the diameter and half the length of wire X. If wire X c,r/z+bj5qr /uop7 6qzh;j+ t7rgr rqhas a resistance 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 an abkk(h;f(itqa g7a :2d radius r. This piece of material is then drawn gq(aa ;:fht2ik ba(k7so that it 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 ndi sau 0a7htn2/pfv*k57o8fEdison 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 vaftn7o7 f0h *iau k2s58d/pnthe 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. Th0lclwi 29iwd* e length and radius of eaciwlw0 2ilc9*dh 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 battery in the 3ucanw m(0w tl*5 .vwifollowing way: “Two resistors are connected in series. Thiw tl(wcmi5.*n 3w0uavs 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 circuit diagram hdgjrj50 ro wye//t8 /;gfh.) ure8stcas internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. Theces08 w r8 guttoh/5 ;/gyr.j)/jerdf 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 ne k, hzf+k,+lg-w)qa shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in +wk-qzaf lhgk, , )en+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+yc0oh 5-jpft 6 yck iy:88pcelectrical circuit at the right. If the current in all three resistors is equal, which of the following statements must be true? c +j8yoyp6-k 0eh8t5cy pfc :i


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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 compltakdyo m1xkrwi:l-1 * ,8 a4gosed of 5 identical light bulbs and ixt1kgwordkaa18 *- :,l4l m y2 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 true conceh7jw8s7 x;lt9 ejii. crning the simple circuit shown where resistors R1, R2 and R3 are have equal resista7l78wi.9c;j hs ijte xnces?


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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. Bulb X :6lq n3ch4xe,gt+ movis brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in goc3 n+:6thvxq em4l,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 passbb p2)t -qw6ra through the identified resistor in 5 seconds once the ciw6aq2bt) b r-prcuit 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 r/ sbx 4umoc(wq7+dl1jo0gt0z esistors in the following simple circuit have the same resistance, which would dissipate mx7gdcq4 two +ju1(l s00b/oz 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 Ω reesp d8g akrg50x..4 hcsistor is 1.0 A. What is the power supplyg8sd.5r gac e 4h0xp.k 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 series to a biw-sgkd ,r+q6 attery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 r-sw+,6ki gq ddissipates 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 parallel to .0 wkx6;eypnd a battery. Suppose R1 has 2V across it, R2 = 4Ω, andn.6kepy;d0 wx 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 the maxiby35jz+kr t 0vmum value of the current underr0vj 3tbk+z5y 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 resisd9 fuwqzk7af)yy:5tj d yy,;+tance of a 60 watt lightbulb designed to operate at 120 voykdf;, ya 7 tf9:zy+ )u5jqdywlts?

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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 thatgw8vm-j +p .lk is dissipating 36 watts of p g-w8m.l k+jvpower?

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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 to6r3tnz. ay ()1lhoy ix press clothes is marked "120 volt, 600 watt.” In normal use, the current in it ihoa3l1x6ynrt( )z.iys

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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 resistancy+ syxw. 2bblt;qq3tg 6vu-0tes could NOT be produced by a circuit containing only three i;- ytg23tw0+ l6y btxs.qq uvbdentical 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 folly c:gsu(t1uf2pqm:/ aowing equivalent resistances CANNOT be p1t :aqy pm/:fuu2sg( croduced 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 differk.paa;rc g8i5 ent values can be connected together in different configurations. If all three resistors are used in akipgc .;85ra 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 ll4qtt amx5wb 6 pgy -s:* tow56:pye)battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n id wby5gt5)s ta lmt4p ply6e :*6:ow-xqentical resistors are connected in series using the same battery? 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 condru7sis.mt2zs e, ;/i nected in parallel, the equivalent resistance of the combinat i s,uism;ser/.zt2d7ion 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 :11 roo8k jkly54 c40n xktvdvdesigned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take tkl5n vkxj:ty r4oo40ck811dv o 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 throu yupcv2zxw8u2;cl)4 jgh a 4 ohm resistor that is dissipating 36 watts of powyvu2up8c xw; j4z)2c ler?

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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 fqof xpe+wwc3i7k/)rjm7;k *zp ga6+ draws 13 amperes of current when connected to 120 volts. If the price of3m/+ *7ikpw) 6q+rcojx7ez w ap;ffgk 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 costm9 3 jtvu )*ik y(ux)-m,e/ kle/knzbt to keep a 100W lightbulb lit continuously xkkvkutt )3mm ji*ze, u 9(leby/)n-/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 23/vq ; ijwky5 uhbg9)yqdt8w;e*nu n4 4.0 W associated with the bulb. Which one of the following choices best represents the resistance of tk;; vn )qt3 wh98dnu4ygq5byij /w ue*he 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 ownsk, ey ;bsy7io2 a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ae2yib; ky,s o7mpere 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 to four resistors to form a simple circuit t o4*(23xknv,rk( /kf+xj3q oczpcf las skk2 rfc/ 4ol*j3ctf(zno+px x3k( q v,hown 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 connecc 9bv8xy4.*p yqt fel5ted to four resistors to form a simple circuit as shown *yc49 ybl5 .pe qxtv8fto 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 y0naac 4s4e/hammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. a0/e s4ya hcn4
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 aggvvz:z o: 81rmmeter, a switch and three resistors are connected as shown. With the switvvo8g1z zg:r :ch 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 swiogyec-e*n5j g( q)jqv0:c3o n tch and three resistors are connected as shown(-o :g *yconq5g3q ec0 )jnevj. 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 equivalentcg3/a0vi* vbe8zo;rj resistance? Assume that all wires are ideal, the battery has no internal rig ;voj8e/*c b v3rza0esistance, 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 ofiw8jib2s ,-p d the circuit shown to the right with resisj2ipd8s b ,wi-tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistors connected in a combina; vnv,misl w5i 7f:+gation series and paralle+fv75lgw ivs,mian:; l 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 resistoqj+si6r h(.anvh 9ey)c)* ye lrs connected in a combination series a*nq i rs.jy+hee yl(a6)v ch9)nd 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 3kw-f(gugh,d of the bulbs are identical. Which bulb will ,f h-w(dggu3kbe the 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 ideal ammeter, ay09xz e ea;dk3(9iaqf switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter ry ;z0fdkieaaqe 93(9 xeads 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 three resi*dza1hy. g.qx qm1,g bstors are connected as shown. With the switch open as shown in the diagram ,.1.1adq gxg hyqzb* mthe 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/,mx qt )hjai0 ideal ammeter, a switch and three resistors are connected as sho0 h)/ iaqxj,tmwn. 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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