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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*z.ak77bni+bgt(hs k7dphc (vc zt3 5 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 resistor and the direction of the electric field through the i 3.ab 5(h dbc(k7 *hsz7ivcttgnk+p7znterior 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 connected in parall91p-o,da xdbr x91fu sel, the_________each resissb1du -a99x1,or dfp xtor 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 filameb: gy2 6ohlyjxu-xsk:q 8y+v4 nt wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the li:8qx 6yobk :yyh- lvus42jxg +ghtbulb 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 replacet.5p c j: 0zlt+cn8tthd with LEDs. LED is the acronym for which one ofpnc+httt85c zlj0:t. 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 g7jjzn e7q/a n.raphite 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 tq7en z./nj7ja he 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*f:,)jtcj ypd l o;h4k made of the same material. Wire II has twice the diameter an* fl)ok ;t,dyh4pj:jc d 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 hlufh*zk38o s-as twice the diameter and half the length of wirus*lf-o h8kz3 e X. If wire X has 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 and radius r. This piece ofrl k (j0il, g*wbq72hq material is then drawn so that it is a cylinder with new length 2L. What happens tojg70k2q* rbiw ,(qhll 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 wants to 9 xpu4v yj4.hgmake a brighter light bulb. He decides to modify the filament. How should the filament ofu.g 4ph9yjvx4 a lightbulb be modified in order to make 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 res mb ;t, v(2e.6u,y(ht b2pkodwpnex6t istors are made of the same material. The length andxmhwdo(bt 2;,nek p6vt2e y, . 6b(utp 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 6lwzhv az.b kz 9okw*.wi*+c*x6nl- r, each of resistance R, are connected to a battery in the following way: “Two resistors 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 orzk - 6c*l owla + i*vzhw6bz.x.*wn9kf 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:q3 kkzddsy7rlztj:.av 6h 41istance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 kzy:r14aq63 k :htd7 vdzjs l.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 right.h9wiwxmrh.r:2 k mh4u- +rf 4g The three bulbs 1, 2, and 3 - represented as resistors in the dkxm hgi rh4-+m:r4h2w. u9fw riagram
- 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. +9w 9; m6 /-stfpun,xtirfhymIf the current in all three re xy htf/9fit-nprm6 ,9smu+;wsistors 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 rightzt uks 3:pfj-;pv,c-lzels8 : represents a simple electric circuit composed of 5 identical light bulbs anduez8s,l::t;zvs c jkp -3-flp 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 g yxv2ac3byr8y rg8 1)true concerning the simple circuit88)gry 32 rycvxb1ga y shown where resistors 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 ak1x v46edh2w-yxgl b. re connected in series to a battery. Bulb X is brighter 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 followin.k2bxdhe v 41lgx-w6yg 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 th6 m87kcxzs01 z pcdfw0mxm8g (rough the identified resistor in 5 seconds once the circuitg kwpms 6czmx c 008z7md8x(f1 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 fol0 rc)ad2zpdiu 5pa64ulowing simple circuit have the same resista2c4 )06zi arud5ppduance, 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 accompanying circuit diagram, the current through the 6.0 Ω resjiki1: sbi()nistor is 1kn(s:j1i ) iib.0 A. What 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 conne*lfnxm 6 eh 81eqt6w0dcted in series to a battery. Suppose R1 carries a current of 2.0 A, R2 hed6n8ef1 *t6l qh0m wxas 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 res3n;( klh yqhzv01k o.;uj l,uaistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 =uj.ov3 ;( 1l; n uhqakzykh,l0 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 3vc-* 0 rmihss fds-40beytg9 the maximum value of the vgmsh 3f c0y ts0--e*bi4d s9rcurrent 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 55yjwt ,hq rj3watt lightbulb designed to operate at 120 vq wjy5j r53,tholts?

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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 restc 1+bg tlcv+wk:-q2oistor that is dissipating 36 watts otbg 1+v2+:l -k oqcwctf 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 9t2vifs a ;r9zclothes is marked "120 volt, 600 watt.” In normal u99 t ;airfszv2se, 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 follow o5fzk8kt2*o9crgd o 2ing resistances could NOT be produced by a circuit containing only three identicalto d2 o89o5gck2 k*rfz 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 resistorsq ho5( zfxw*o3. Which of the following equivalent resistances CANNOT be przho xo *q(5wf3oduced 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 togets)xl+h lk6u;u(0 igi zher in different configurations. If all three resistors are used in a circuit, how many )lizuh0 u+li6(xgsk; 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 battery, .wv /yk3z *n7(gzyuj l,nu4uta total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in,g /7.3kvyul (uy4z uzn tjw*n 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, a: zb7tmboz-l 2re connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistalm zbboz7-2:t nces 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 recp 095h-k8jw ax0zagcsistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take 0a09jh a-z85pcgxck wto 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 c64f- gic4)*q gia pxrresistor that is dissipating 36 watts)aix c6fipc4-gg4 *r q 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 ampere)d-vsh 3a z)fig ,6uots of current when connected to 120 volts. If the price of electricity z,hft so 3 )v)iu6gd-ais $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 lidno.em -ce bk gz4 2)s1mn73vut continuously for 1 yees.do)2bzk mn nc eu413- gm7var 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 2c*7)-xsu wsbnm glui/9 6jyn4.00 A through a lightbulb results in a power of 24.0 W associated with tnn*s i-yu/j6bwsxg2u l m79) che 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 of a family of six owns a computer rated at 500 w;maup ax0 *yxu .g9f6md8c 0d(vh3jgyatts in a 120 V circuit. If all computers are plugged into a single circuit protected bym.9g0(af *0c3mxuvja y x dh6 g;p8udy 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 to2vbwrg5,-p 70 sgwpli (enfo* four resistors to form a simple circuit as shown to sgvw fp*b0op ,lng2 -i(r 7we5the 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 cob,9xg hucxz x+q i(b,3nnected to four resistors to form a simple circuit as shxx3 ,q,cx+zb h(bug i9own 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 ammet;ygf.6zqo.. ga komjm9 a /-tqer, a switch and three resistors are connected as shown. With the switc.ak.9 6 gfjmga.omyqz /-to ;qh 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, (cd. qcvyw/)b an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in w/c)dcq v( by.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 switch and three resisti. 8b)z*baollb 3 ;putors are connected as shown. With the switch open as shown in tilu;aptb)8z. 3bo b*lhe 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, wgli :5 n6zln+vhat is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical res5+li 6:g lnvnzistance 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 the rip ilez6v6a+)m.2fgww ght with resistv62+i) ge6.p lf mawwzances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 showbo*k7od:, m caent;+ ss five identical resistors connected in a combination series and parallel circut,;s omebdnco:+k7 *a it 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 yxw9fg3l;y 7xdg qx-: resistors connected in a combination series and parallel circuit to a volta yd;-gwxfqx y:379g xlge 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 aresa0vv /n eck cp0,i:g/ identical. Which bulb will be the bric, /ke0iv csavp:ng0/ 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 battej/z.laqfd4wr 2i: o )ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperesl :e/ar4f iod q)z2.wj.
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 resistors are co4 e v l8csqr,a) .ksfvki.)-nennected as shown. With the switch open as shown in the diagram the 8,ivaekkvn .) r4q c.l)fs-seammeter 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 tp vu.jzgqpq30t 07nj f,d; ou7hree resistors are connected as shown. Wi p qn;ujj0.ov,tpq 037fdzgu7th 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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