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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 showz- .m1xcd1owyw n8kz l6vd 3xs/cf,5 on, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describe ,omddn5f w x.-s1vkl63/8zcc yw1ozx s 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,m42fc- ig owpt*f5h iy4lov b 37am8o n-su)8q the_________each resistorm8 pc)3hwoa4bo7n8s ivtqf- 24 fogi l-y*mu5 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 filament wire of a lightbulb cause2 7wl vkkn-;8hjcj kn;s the filament to become white hot, while the larger wires connected to the lightbulb remain much co;nl- jh ckjkn2wv8; k7oler. 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 replaced with LEDs. LED is the/-d lavnfm zug+;j8akg7i7h, acronym for which one of tm kui 8g lh7f7vn-/,ada+gzj ;he 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 graphi d1rga o3o(zc0te 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 new resistivity to the old resistivity of the cylindrical res0rzoda3g(1o cistor?

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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 thedpqqo:y76tm3twv -ur dn /k.rs)6h /c diameter and twice the length of I. If I has resistanced.kn/urdro 7w/tt6hp6 qyc) qvs:3m- 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 to wscs+g i5l75he diameter and half the length of wire clssw+5o7gi5 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 0a* m0t-dn+ys vi1ewnlength L and radius r. This piece of material is then drawn so that it is a cylinder witmn*0ea0+st1wvind y-h 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 make a brighter )xt kph, sy4o5light bulb. He decides to modify the filament. How should the filament of a ks4tx )poy,h5lightbulb 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 thex*i1u- p-.7fwmeu )hg 5wovl s same material. The length and rauo xfpi 51-guv -*)m.selw7hwdius 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 resist5,t /.:)xvh em ryoidtance 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 seti oht.v,xet rm: )dy/5 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 resistdoxiykaq/nq663:j ve.3cco,o, dv ,m ance 10.0 kW and the ammeter has internal resistance 25.0 ohmd3j6ai/, d qo cno3emvqxvyk,6c .,o:. 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 thvz* .96o2hpqza( zvf jree bulbs 1, 2, and 3 - repreo 2pv .9q(jzvzafhz6* sented as 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 the b uqiv* 9d52tlright. If the current in all three resistors is equal, 95u* lq2v bitdwhich 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 repdfyxm 2 53(zre; .bf;pn6q hsaresents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whieqhfa 5 mx6sn3zpd;b2(r f.;y ch 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 m5,jjvv gem-4 true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistances?v jejv, 54mgm-


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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 b4j11cyj6c*4giuu olto 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,cj*4o1iju1 cgb6ly4 u 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 idab7wx/p( lom. 34w)op pjtd *nentified resistor in 5 seconds once the circuit wa 7b) l tw/pndjwpmpo4a.3 (o*xs 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 following simple ci)3ks z uu,o)rca8 bkn8rcuit have the same resistances3uzb)kc8kn) u r oa8,, 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 -.e(ov/k hz)rryw1w zmnq (*sfea6c(Ω resistor is 1.0 A/ ((wyze-6)rhc s(1r fomvwa enzqk*.. 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 connected ink gv3z1ag x4 9xqd3:au 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 the voltage :daq43 z9 31gvgx xkuaacross 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 and 9agp 7lv0du(vop3: tgR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the c0p( o7 3vu dtga:vg9plurrent 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 mrzlt o3d-;:5blnwgedakg0e3 j; i b89aximum value od e0ztr583dk ;g ;ona j9lbeiw3g:bl-f the current 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 watt lightbulb designed to operathjw cl:yy 3c94e at 120 voltyw: lj ch943cys?

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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 4n80 d -9lgg),sfb3qz r(gya fn ohm resistor that is dissipating 36 watts oq 38frnsy)9dl(zg b g ,af-0ngf 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 markedjaokasx 8 1h() "120 volt, 600 watt.” In nokj 1s (ah)o8xarmal 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 produce)ry w9vjy3 8fkd by a circuit conj k9vw83 )yrfytaining only 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 resistd7m9rjlue)q 7ors. Which of the following equivalent resistances CANNOT be produced using all thre)7 qud lje9r7me 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 szfa)*j03rr 8r.r amztogether in different configurations. If all three resistors are used in a circuit, how many different rrfzr 8*szar)ma.3j0 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 resis:t1 x8 tdavwp,tor 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 rd1:t,v tpwxa8 esistors 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 resistancdkx/q gpfuirn+,/ /pbu/3+u xe R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following /ruxq/b+k p/3n +p,f/x g uuidstatements 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 resistance of -0l8 s/rjd 4xy et2svt 2g*oqn x+rqg-12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of xx/8y* +vt 4grj22o-t l r- qdgeqssn0water 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 resc k6 dxeu:0;zt.i /keiistor that is dissipating 36 watts of powe0exz: edu k.ic 6/ki;tr?

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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 oulb7lixyxg 53io 8u65 f current when connected to 120 volts. If 5ubo 6x 3i7y8lugx5l ithe 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 keva/z3e(sdj9 sep a 100W lightbulb lit continuously for 1 year at a rate od sv a(9/3ezsjf $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 inneptz 0w:gd3.p0 pg22h-y +xr tv dk.hyqc* h3 a power of 24.0 W associated withg.tcz2p.q *w3+rvh0d ypg32xh yn0ke-ph t: d 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 ofdefgi,2o69jyuox6w m) n 5dk / six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protecdjfi w g5od)k,/myx6962nou eted 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 resistors to form a sin(j dsc+sc*75qh1 4u7uq iyoy mple circuit as shown to the rcy s7*(c1 oud4q5 +ui7qjhys night.
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 fours zhn75z((to0qbv0lo3 -ig aj resistors to form a simple circuit as shown to the ohizt(b0n 5zj 0(q-vga37o lsright.
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 resis* *kssikqdac4 t54qu9tors are connected as shown. With the switch open as shown in the diagram the ammsd q*5 uqtk94c*kisa 4eter 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 zo;5kzw7l5z(y (azuw8 j2wdhal ammeter, a switch and three resistors are connecww2 jzz55d( 8z(awzo;lkyu h 7ted as shown. With 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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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, anxw q)8s.sh,1 xzt0qe8 h +lcdz ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the dia eq wd hq.)zx88zl0s+1 ,xstchgram 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 rc2(q: ekp*7+ bfw*sc npmvs9 iight, what is the equivalent resistance? Assume that all wires are ideal, the battery has ne*np9ck:+cf*7m(vi s 2 bspw qo 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 resis5 mxxy42wv0el v 0zcmc9ju k0*tance of the circuit shown to the right with resl xukmew0v*49c0 x2y 0 vzmj5cistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 conz2 v7 np /o0w/zhgp;jpnected in a combination series anj/ p702 pph w/nz;ozvgd parallel 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 identici x byr9u:fqg,+l/t h:al resistors connected in a combination series and parahu q+y t bx,f:i9/:lgrllel 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 diageqiyc(/ nm6 kq 1lrp:;ram, all of the bulbs are identical. Which bulb wi; :(knc/6pi qerqml1 yll 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 battery3vwx;ujclhj w317hi b0 n0b8 i:8g g r8c:ryda, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amxr71yw; h3w8b:g0ha3ij b 8 :nujgd0c8crl iv meter 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 cokb a.r/ 1rv;t9ed fr4ennected as shown. With the switch o91r.e df bk;taerr4v/pen 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, a switch and three rem. ;ryc it3u3hsistors are connected as shown. With the swiu3;m ycthri3 .tch 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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