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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 metaos k576o2aove+6 h eq+di cmo(l 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 theho s a m+oe(+d2eo5 ciqk6o7v6 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 conka68g ap; .uy/s-q6y;a.tjsl zv y va,nected in parallel, the_________each resistor is the sampaav- 68ys;vq .yya/; lut .kgz6jas,e.

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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 f+) eprqu0bc-wl j3t 0pulqo :0ilament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. T jcpo)rqwq t3u0:eup0b + -l0lhis 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 gtb*8p5i ws4j9;hgclm 3mp y 1with LEDs. LED is the acronym for which one of the following cc1mp53jw ;gg bhps* 4it89ml yhoices?

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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 hapwf ir5uep ekuqgv95x s)/e 0k+4,; ios 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. W5efi9ie ro);+uxs p 5kpu ev4q0/,kgwhat 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 tx, : 0eyi;7-s* pz(u8l azv.n haukhtche diameter and twice the length of I. If I has7hpu;l:e(k-tczx8. sya *nvui a,h z0 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 .eq onbz/3z i ez3 qss/fd /k8*47ouajand half the length of wire X. If wire X has a resistfzk84*q3s q/e/nj ieo u a zz.sbo3d7/ance 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 and radius r. This pieceu */tgaum:4i nqv-oys2ig q 2* of material is then drawn so that it is a cylinder with new length 2L. What happens to thy- iug4uaqo:*nm vs*t/2 igq 2e 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 wants to make a brighter light bulb. He decido8r;w el pyu,(es 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 (lwe rp;u, 8yovoltage?


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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 mad3zpud(nxrp89bqaeq 4za7m f,44 k u(ze of the same material. The length andq4zpa4f4bm93(pe(z z7kd nr a8x, uuq radius 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 connected to a -rtjvv s( 5 gs2ju5mf:y77kkrbattery in the following way: “Two resistors are connected in series. Thissr 5jy27vrv:ks-gtkjm f 5( u7 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 diagrakfxl6 k4) 9lavt8 sbdfd39,thm has internal resistance 10.0 kW and xvdt 8 6bakhd)f,9l9t3 l4fksthe ammeter has internal resistance 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 riu* 5+ we kllrbt;1n+mcght. The three bulbs 1, 2, and 3 - represented as resistors k 51wnm;eltu c+b+lr*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 the current in all n,kn/w7n :mt 7i.qldvthree resistors is equal, which of the following statements must v7,.lm:w 7i n nn/dqktbe 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 simpkgxb.9l 9 wdrdhr -my *sd.c)2le electric circuit composed of 5 identical lightws l md)c9-hkbr*xdg29ry.d. 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 true concernin21f ;m.y u0f4l ojyujyg the simple circuit shown where resistoj .uf;l2j41yf 0umyoy rs 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 X andY are co ub6n68l;qry jnnected in series to a battery. Bulb X is brig; l unq8rjb66yhter than bulb Y. Assume all circuit elements are ideal. 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 will pass through the identified resistor i y2 9 ggrnjyi;0dzf l40cjde:2n 5 seconds once the jnc092 yfrg02ydig ;d z:jl4ecircuit 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 fpycfflep +-mux+x co 178u1n; ollowing simple circuit have the same resistance, which would dissipamnx;lo+ypxc-8e1+fc u 7puf 1 te 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 diagram6 kffxw,6k*y0n 7gfri, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V ryf60xik k7nf 6g*,fw?


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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 s qc4 f;, k4pmq4r:yrvteries 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 vr;tckqym 44rp:fq4,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 co/.f zou(( u x6n1atwdf )k(ptannected in parallel to a battery. k(utofa1a/ putx)6 (fwzd.n( Suppose R1 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 auwsrz,)em /mut)z:t4 nd 120 volts. What is the maximum value of the current under these ct :w4u/ st )mu)ez,rzmonditions?

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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 operate atmd9vls pp j8-fk cj52z+/du k. 120 volts.+ud2sj-9dkl5pfmj8v p/k zc?

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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 thvk:u j:xu/g+ ;9khhpjakeh,ee 0u k::rough a 4 ohm resistor that is dissipating 36 watts of poweru jee:vg:0kh, /;9+ j:akxku:phh ue k?

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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 marked "120 volf1.fvz*sr,u,5r i vgrt, 600 watt.” In normfs rzvu.r v1 5*,gi,fral 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 could NOT be produced by a circuit cq.z s bkr/o6q4 y7duez,b1(gcontaining only three ide7bc boy64gr dq1,eq u .zz/ks(ntical 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 equival + etz)k7 pqe0wu4yw-/c gpz9dent resistances CANNOT be produced usin 4qz p-9 tde7g/e)w+wyp zk0cug 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 cd:/9sbg csik.onnected together in different configurations. If all three resistors are used in a circuit, how many differe 9dkcg.b/is: snt 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 re(ytl7d mj g:wx+60dyc sistor is connected to a battery, 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 battlm+ cyjdy(g6: xdw7t0ery? 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 conollpd:yjplbk -+9 /l1s g5 i(6l:rdaknected in parallel, the equivalent resistance of the combination is 5Ω . Which of odapil9p6+gb(-y l/ kkl 1jd:lr5s:l 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 rihvz26 , gdx6mesistance of 12Ω when operating at 120 volts. What is the minimum amount ofdg6zx ih,v6 m2 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 d*q8cpvs*d8s through a 4 ohm resistor that is dissipating 36 wapd8qv**c sd8stts 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 draws 13 amperes of current when connected to 120 volx0e nf imk442yg tqhit y*i8)*tse04m*nfit hiyt8qk xy* )i24g. 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 100W lightbulb lit coi0r7rgu, 5t(mzeary4qt7 ,at5wb 8 vq ntinuoa ,87rg wt0a4i(v5rbm 7zq5uyt,q retusly 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 ofldzel4 jae5b99czm664.it m: nb4a m c 24.0 W associated with the bulb. Which one of the following choices best reprene9d49:ib 6l z4.e4ccmaa lzb5tmj m6sents 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 ofc3gno/q 8*mlp a family of six owns a computer rated at 500 watts in a 120 V circuit. If all g 3lqnomc/p*8computers 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 conei*.am9q /ujcayce (7nected to four resistors to form a simple circuit ae(c * 7.i/cymuajqe9as 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 i*n nack8/z/m ws connected to four resistors to form a simple circuit as sh/ z*nkn8 c/amwown 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-6t 80uw4:be kbxntqs, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as sh:usb x0kn w8q6tb-t4e own 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 ide9 -pd2p+azl6cbn6 la sal ammeter, a switch and three resistors are connected as shown. With lb6 p2aa cpnzd+-sl96the 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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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal amme;h t)ncm7 q3qb4o1wi srkn2 :iter, a switch and three resistors are connected as shown. With the switch open as sh 4s;3cbwqtn o)7m:iirn2q 1kh own 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 equiv (n6s-(3(0f:utqo yu l wmegivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors ym(f3:0ln6 q o(eig(ut-vsw uhave 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 ofy. )vvkk5x2+0b+ qivdg x hqv51 utvg8 the circuit shown to the right with resis8 g vivk.0)qyvbx5khxdvtv5g1 ++ 2qutances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identisxx*;ob4s7pkfq c:s 3efw h70 lvu1e,cal resistors connected in a combination series and parallel circuit to a voltage soo;fex hc sbku3v4l*e0p,sf7x w71 :squrce.
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 connecte:k ms ,6x0pyvnnbq7 ztql +u)8 )rpy79+nspsjd in a combination series and parallel circuit to a voltag8r0)v7pls,ps+nxqqm spu76nzn +ktb9 :yjy )e 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 are idiireurk::nt 4quq5sil (y*) 6di iot +*-1tapentical. Which bulb will be the brightest? :d nii-rt is*)41ltt:qr uk*q+ 5ype6i(ou i a


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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 ammqqph:u 5xvwr1h:ulr.tmwbd 4j; *7 0aeter, a switch and three resistors are connech 0rq1:t m rb47wuldu.v ;wax:5*pqj hted as shown. 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 ammeter, a2 2e ecrl(27,sh )pekiv90iyk5z x iuv switch and three resistors are connected as shown. With the switch open as shown in the dve hk xri2ku,e e502s (cy 9)72liivzpiagram 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 resistorsu:3a1e ugy bq r4q.u0/8x nbxw are connected as shown. With the switch open as shown in the 0: qu nrx418w/eu3qxa.u bbgydiagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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