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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 the8.9t zotn w6ogfv(ky*rd t .l/ 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 o f8d y.v*rt6.lkg9o/ o t(zwtnf 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 parallelemth fepxjx4,wc3 91b: 9h4 zg, the_________each resistor is thfpj91w4 zbxceme,g349h : xthe 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 lighus2nj1/ nf q mdynw/.5tbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens because2nu mqys/jw/ nf 1n5.d

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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 repla6 uh8l- pwl:juced with LEDs. LED is the acronym for which one of :l -8h 6upwujlthe 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 hasve qtr-qq/c.6v9i/q v o6s7am 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 new resistivity to the old resistivity of tt9q-cir sqvqv /vq/66mo7. aehe 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 twih1l 7 e9miqio6 i:j ,h3bpse1r4z(fp ace the diameter and twice the length of I. If I (bhi aeq793:pe 1oislpfz,hm4ij r 16has 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 thx rliywr. (k4/6t1qsje diameter and half thxy4 .q i(1jrtk6 rlws/e length of wire 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 lengwwos:w -yqaqf;kxi)pmuowt n; 16r;u2 -;t6 oth L and radius r. This piece of material is then drawn so that it is a cylinder with;wyi1 twk:omp-u)6ww 2;ra;6qnutqo-;xs f o 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 Edison wants to makey r )d ;qdu+kj+uf(ca4cei* /l a brighter light bulb. He decides to modify the filament. How shoulry;fc/k(+jic ued4a+q) l *du d the filament of 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 resistors are made of the same material. The lenjyt6v jp08 yn)gth and radius of8)y t j0y6pnvj 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, 1ptr nf )jvgg+/jj,;h 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 o g /g;fjjj),phtvn1+r f 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 diagra ut7qt;p yxg:8/(ncxx m has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammetx 7gptx/xqc ;8n: tuy(er 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 right. The three bulbs 1, -2neolk +efn 22, and 3 - represented nok2-+ef2l n eas resistors 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 theibh 5 b*0)eu0 ebp gayg8ilf/* right. If the current in all three resistors is equal, which obp0*a0blegfu)gi/* hybei8 5 f 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 represen*:,:x * dq *yztiuspabts a simple electric circuit composed of 5 i d*s:*ubq:z*i ,xyap tdentical light 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 concerning the simplei 2i:xd6n /q(nffk l9e circuit shown where resistors R1, R2 and R3 are have eqq:i dn(e fnfl296/kixual 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 connected in series to a battery. Bulb X is bux 7b8*g .xxrybs v3-plv6jh,righter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to the same bab y-x 8,3bvsp*hvj6x7 r.gxulttery, 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 co7k2kqic;we/-zif sc w .cvv)4ulombs will pass through the identified resistor in 5 efk vs ci4ck) v7q/-w2zcwi;. 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 resistav)p3t v;jd2b3q .y(hhm fvevx w355vors in the following simple circuit have the same resistance, which would dissipate t.v)(hw3e5atf 5vxd p y2q3j3bvhv;vmhe 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 ffp b/-s0 s02gkk9bt ul i37bnΩ resistor is 1.b0kg9 pu s0f f3inkb2lt-/s7b0 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 R3l9*4c a1vqyf jt)r )no 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 is t4j)n1f *v loqr 9ytc)ahe 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 resist8ticf+ u .7d* ma8hjsuors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current isc78 huumi.8*ftda j+n 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 maximumh;yhyk6g7w y dtltufnl: 1 3e.z s7.b,+u+ nbk value of the current under the.ttndelwyh:3yk , +szukb;n gyb.u6hf77l +1se 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 operatef lr*c4u 1esrtr::6vy at 120 vort l6f::r4*1yesucrv lts?

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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 a8krdtwymx 6,sf72u ndxhoom c3(0)w9 4 ohm resistor that is dissipating 36 watto)w ,m3x tf0d89c2(ns hm 6 yudxrwko7s 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 mx*)sb 8; tagz0 f,xyuugh d-5garked "120 volt, 600 watt.” In,u-*5 d)gutxgbyzx80 hfag s; 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 resi gve xg8r*zjgt p (gx-,a68;ywnz. qu6stances could NOT be produced by a circuit containing onl q; p*a(ggut86- g yzzx6e.8jxnw,rvgy 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 rzfre. f5po )8jesistors. Which of the following equivalent resistances CANN) j.8 ozfep5rfOT 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 di/yhg p5zbk w/m:yw2,j fferent values can be connected together in different configurations. If all three resistors are used in a circuit, ho/w:gy h/yz jpkw2m,5 bw 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 resistog94e w.k0 (larj8cy-zag j4anr is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a ci 0we9z84g.cgl aja(y akn4-jrrcuit if n identical 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 resis3ho1c7l(l 1j0 xyaldg tance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω l1(gox0j a1 hylcld3 7. 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 designed such that it has a gdgml-/u m9h;/;b m 3s7 qnvitresistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to wandl;m3h mi g q97m/vu-/tg;sbrm 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 through2og v/, ly7rrk a 4 ohm resistor that is dissipating 36 waovg 2/r7 ylk,rtts 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 connecto50 ye8bozudh)9g)gm+c(kmq ed to 120 volts. If the price of electriciucz8mo0 kd)5qb+ (eymh) g go9ty 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:/ o,r* wygxbk+y8w9e*mou ev would it cost to keep a 100W lightbulb lit continuoo +/m bw*o8y9 e x:,we*vkygurusly 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 lixrvqyo4: pkt:m*q 1 sr4*oym)ghtbulb results in a power of 24.0 W a1:rtps* *: roqxmykoyq4v)m 4 ssociated 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 of a family of qur6g q 4vy:e9pr/+egsix 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, what is the maximum r9gpgryeq u4q 6/e +:vnumber 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 f7/ trsa(csu9i rp th.8our resistors to form a simple circuit as shown to the right. ct/t8 7(.a9hsr prsui
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 four res,e99-c++r g +q2mg2uem, nf:jdvopha n) ppg gistors to form a simple circuit as shown to the2hcd+n9pvao,um2 g -e9:gep )+ n jq+,grfpgm 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 id fjn99ly 1xwy,eal ammeter, a switch and three resistors are connected as shown. With the swit y1nw,yjx9 9lfch 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, an ide.l/i kg dwho:b 0g6giuy)en3w1gh8d .al ammeter, a switch and three resistors are connected as shown. With th/ eol)0ibg6kg1hg wd.i8 ng 3yhdw:u. e 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 ammeter, a switch and three resistors are con .qsv n6-26d(xpuka. qc6k.i nrgars-nected as shown. With the switch open as shown in the diagram the ammeter reada. irx nus(rk qpn6cv-ag- qksd2.66.s 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 z8 h27wxf r3khthe equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical res7 f2x3zrk8hhw istance 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 circuitg 5(ek scn3wo v/+c)( r7woinj shown to the right with resistancescwr+j )5ci ov3w(n osgek7 /(n $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 conn6;/6f6 xa ps) h woab(qdgl9vhected in a combination series and parallel circuit to a volt ;g6)l/apw(fasob9 6hx6qvdh age 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 connected in a combinat . qw6vwdoz9 0q+phf8n,vzz.dion series and parallel cirfoqw0vzv8+ . w9z,pnq 6hdz.dcuit 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 of jt3 e ucig457p:bd w )mxlr7a3the bulbs are identical. Which bulb willwu) a3xj7lbm gi4r 5d3e7tc: p be 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, a switch andiz 56d j31csaare4: ud three resistors are connected as shown. With the switch open3r6ejadza:i ucds 5 41 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, a switch and three resistors are ccw:66q)khwc b eci4, sonnected as shown. Wi c),h6wb6qsw:4cic ek th 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, ak24 zl)ia:l2o 3w ftn9wmbt h3 switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a )in2h3 wo9mfbkza:3wt2t ll4mperes.
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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