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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- eo1pgxhl 7f3yslsj+je- gt5,7ejs8 in the metal resistor connected to the battery. Which one of the following choi-h8,e jo-sxjtg e ys7537ll+pg1sejfces best describes the direction of electron flow through the resistor 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 connected in parallel, the___r05 rbn xfe(g-______each resistor is the sam5 brnr-0(gef xe.

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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 filamenth. qpmunqb17+0ap rp.fx2 q9):d b hbc wire of a lightbulb causes the filament to become white hot, hd b2mn9+. bp.pf 1xq7bru)q0cp qha :while the larger 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 h uq6dxa6ty tx/c.y-7p /b*vrzm8 hz 1dousehold lights are being replaced with LEDs. LED is the acronym for which one of thx 1- a.7d* 8 ytp/byzdz6cm/6 tvxhqrue 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.9:7jb 1j asxaa It is to be placed into a circuit, but it first must be cut i bjja:97 x1saan half so that 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 are6; 89qm9stra cs nxmd2 made of the same material. Wire II has twice the diameter and twice the ;xm2stcs arqdm6 8 9n9length 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 o t 3k:eyt*x:t se;jk/yf the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have aettk:*k/e:; sy tx3 yj 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 lenutdu:al3mu62 km ,w5i 5-oezkgth L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistanc,el i5m u6kkw-3 utm2 dzao:u5e 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 mr2( b xff7z9rx4a eyd8ake a brighter light bulb. He decides to modify the fi 8(a 4ryberxz fxd27f9lament. How should 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 p4:e4cdu/ ilowyc 7+o(g- gazare made of the same material. The length and radius /74+d -lggo( aopw: cec4 uzyiof 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 9:s/bkwuz( gmxmobuk)) /9 hdof resistance R, are connected to a battery in the following way):ux 9) db m/(gk/k9 hmozsbuw: “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 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 resistipdqg )b3-*f0 pdknp3 ance 10.0 kW and the ammeter has internal resistance 2di 3-gn*qkbp3) pdf0p 5.0 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 right. The three bu9f a bqa14rse;dt9ij9 lbs 1, 2, and 3 - represented as rere qs9f 1 9bjit94ad;asistors 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 qs: smd98xk1f2 cs-:f.pa jixthe current in all three resistors:xfc:s9m 2.a kis1jp s xfd8-q 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 composeu-z9vf gewtntukn6,8;ww9g8d of 5 identical light bulbs and 2 flaszng-w9 k; e86ttvg wf9u 8,wnuhlight 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 concerningbkms-rgt - /8s/5fys v the simple circuit shown where resistors R1, R2 and R3 are have equal resisf/ss8 ms-/5ry v-tg bktances?


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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 an2g*l5sr ),bbe k3khh gdY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. Ifbg* bh) ,kkls2eghr35 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 through0v+i+q4u;kvohv+8b dx n hom . the identified resistor in 5 seconds once the circuit was clom +okv4vho.+ivxq 0u+ dh 8n;bsed?


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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 t9qc5pp45r vdrc/ hlt*we51 wuhe following simple circuit have the samwp 15h*qr/c ldrtpvw5c5 4ue9e resistance, 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 curr,l;w bhy2cmd, a kx13qent through the 6.0 Ω resistor is 1.0 A. What is23hdk,wl mqxybc 1 a,; 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, R2,7l( atz jb)qhsoqq 3u;0s(juqp(b: )z and R3 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 oqshu) a)(;jb:(z q 0ul3qq(pb7tsz jpower. 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 Ra b;y*07l8:stzpi rra1, 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 curre7r0;*zya b:8prlia stnt 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 1 a51x,x2pyvfyhvb r5* 20 volts. What is the maximum value of the current under thesap15v b5yr,x2*yvx f he 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 :ajeh: ee qoa0j1 :da)08vnowoperate at 120 v0w0 do1ea:oj e::j8qhn) avae olts?

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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 that8xw3s* +snb3 :plhcyng, :dqz is dissipating 36 watts ws:33gs,bcpdn*h:8 +qlzx ny 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 marked "c 2;sisglc;t j.l1+pt120 volt, 600 watt.” In normal use, tsg ;;t i +lts21cc.lpjhe 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 followi;gfw qjbm4 rs,v ve -qp;yyb4-3(zmt0ng resistances could NOT be produced by a circuit containing only three iden-4;mbmq(vfqtz yrevb 0j3 -;,gyws4 ptical 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 equivalenttw -,p88e) mmfwy ;edr resistances CANNOT , 8wdtf;8we eprymm-)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 different values can be jm d-o8iy:tw +kx;e+1w ma7iwconnected together in different configurations. If all three resistors are used in a circuit, how manoeaiw8y+-km:w td i+ 17j;xmw y 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, a total power P isz33f pif*,rx( m3jlhh dissipated in the circuit. How mucpzfx(*3 hh rj i3,3mflh total power is dissipated in a circuit 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 resistance R1 and R2,d1sb vw;t:.hp are connected in parallel, the equivalent resistance of the combination is 5Ω bt pd1:.s;w hv. 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 reot21r dx fz.3esistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to waz1f 2xor te3.drm 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 resistor that is dissipating 36 wa:(can0 oepl/rs6hk +,ov z. gutts of powo0e/o c,:lp vkuga.shr6(nz +er?

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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 whene7 g 2nvgr+ce4hzn)m 3 connected to 120 volts. If the price of electricity e+v3h7 gmn z)4cegn2r 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 lk qdlh rlzm7+:43yj. vit continuously for 1 year at a43rmhl kl +.jyqd 7:vz 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 currles,0( /q+gyd2wrmcb j ;-fprent of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the f,msby+/2(dglw ejc 0-qrr p f;ollowing 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 f6 4,m z9 tpwbzla7cy(w.sbvrxv) f4e0amily of six owns a computer rated at 500 watts in a 120 V circuit. If al7x4t.efwbl4sc0 p96azw zv(yv rbm) , l computers 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 connected to four resistork4ac/+q ywo; 2)zdnjeyj t /18(dujqvs to form a simple circuit as shown t4q8/ zk/wjue1qyyd( v +;o2 a)cd njjto 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 four resistors to form vctp)n/3 .de(p2lr/ bs r4ckoa simple circuit as shown to sptcrv2cno).rld kp//3 4(bethe 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 arqr(wmc71v h/ de connected as shown. With the switch q7hvr 1md /wc(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 ideal ammeter, a u7,uk25brt1kl.prio dy7)mb switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amper k)ubu27.mo1bd5i7 y k,trlrpes.
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 ammeten8lii w( l9gqhcw46i9 r, a switch and three resistors are connected as shown. With the switch open as shown in the i4 hqliw6in 9w(98lcgdiagram 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 ejd,:hsrb2., 9c)i.lj feer lequivalent resistance? Assume thjsrl9 di :,.)bce2e h.e, rfljat all 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 resish+hr8mz -,vdd,uclpfg g (7b 8,: k7)cuaachxtance of the circuit shown to the right with resigd u hprahh x+ (fc7az-,clm:gu8b,7)kdc v,8stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connectb(k/ttf*o t ;p db;g,ued in a combination series and parallel circuit to a voltage sourcebog; tu(p,/f *btkd;t.
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 c; x4g*tr9,06-usdzb o +eib intk* s.ts2 hhwgonnected in a combination series and parallel circuit sit.,zoh *thsxe w u4-0g6 btird9 +nk*bs;g2to 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 the bulbs are identical8 :+hvc a8to-yq*tmgnz6 tr;o. Which bulbn+omot88h *tv; 6zg t-qrc a:y will 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 swiwqn 3n:v5x j5 crxft(;tch and three resistors are connc3 5;njxx wvfnq 5(rt:ected 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, a switch and three resistors.ty5rlp3l mq aqp60 l9,zq8 vc are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.05pc ,qqq. al vlm3z6l0ypt 9r8 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 resistors are ceyu7.zat-npc6 b ; z+zonnected 6znzeyp 7 +.b ;ta-zucas 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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