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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 metal resisti3s1* dgmg (zo)unngs /3u -lvor connected to the battery. Which one of the following/ ivd(g)nm nu1o -lu3gs3s*zg choices 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 parallmfa+mx f28d *+/j zvy5eb c*nhel, the_________each resistor is thevd*zcbnyx m a 2+fhj8f+ e/*m5 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 lightbm:cjb t oi h-ghbm9fo6ku5(+0ulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much co tom+j(fu6ib c5khm9o-:hb0goler. 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. , k.8j,1d c(r -cu2cet3end 6cqxqzmaLED is the acrony 1cux6q je ddcq2 3z(,ar8m-ec,k c.ntm for which one of 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 /dnb ow k c/z6vmqu++y1 4sa0sgraphite resistor has length L and cross-sectional area A. It is to be placed into a circuinzakq6 s vdoc// ys0+4uw+ mb1t, 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 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-qlfdec;x-u l90 yy/u . Wire II has twice the diameter and twice the len0yl;-lyfde ucqxu /9-gth 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 has twice the diameq*4vbw06w9 nk pdiu0mter and half the length of wireq0 49iunpm*0b w vwkd6 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 rq7lbo v*cd8thnecx 4: g ;q;4dadius r. This piece of material is then drawn so that it is a cylinder with new length 7bvtd4d4hlc8 *gec;onxq ;:q 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 Thom , a3gt2r:oncln 3pbup.obe-1 as Edison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make 2lb.3pg ut-oo c:brne, 3a pn1the 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 resp:kbrzv p;,q5ni l2z)istors are made of the same material. The length and radius of each resiq2bri;nl5 zkppv), z :stor 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 connev3t2j:f u omv5 q2gl *qfbh/py- (owb5cted to a battery in the following way: “Two resistors are connected in series.5f 5yf g(:lbmo-pu2qv hjt2 *3/obwvq 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 icuk*.y5db)st +jel y5nternal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter readybj*ekl c+ d5stu) y.5ing 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 thk5kon 4;dl. *jee3avrzir5 /x e right. The three bulbs 1, 2, and 3 - represented as resistors i/n5 ;k rre.3kd*i4azlx 5jevo n 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 curruzjfq b8 a y90no.,o4fsq,oqfq,+go 6ent in all three resistors is equal, which of the following stanq,9 j864as,u o,o.q oqz+fof bqfy0gtements 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 rdvd* qe. kbh1y,1y1 cyepresents a simple electric circuit composed of 5 i1.kqy byvd*e1,ych 1ddentical 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 st1 my rt4/d3masbt ,,k;psr ,pbatements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistanc brm1,krd p,ts;sa3 y,b/p 4mtes?


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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 s-p.b b0zb yu3t+xqnm1 eries 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 on-y.u03xp bbz+ bqmt1ne 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 identifi4v1 mk+m2lwemcj.2dd 7itcs3 ed resistor in 5 .cimw3 7l2 1d+ce v4ms2dtkmj 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 resistors in the folv*; 0d f,ejym9+bvhwtlowing simple circuit have the same resistance, which would dissibh w;tjy 0+,v9d fvme*pate 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 thr siv11*drw8,bg.tm/ . jknzjoough the 6.0 Ω resistor is 1.0 A. What is the pos*o ..k /8z1j,djwtvbim1g rn wer 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 in series to a battn3ohn8jcf l k*4q0 /ccery. Suppose R1 carries a current of 2.0 A, R2 hasco nfjcq84k/ lh3*nc0 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 resistors R1, R2 augfkl0 6nh7;f :d4aq/eith* wndR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is te 6* /udf4hk; i70t gqfaw:hnlhe 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 coifqxfso8 x*r1c+r6u,3ttez l l9 *ip3tl is rated 1200 watts and 120 volts. What is the maximum val3f9*sett8x q tr1+rfc6ilx* , zlop3uue of 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 resistanm u+g2n;;3i*mnlcktzk i x 4,tce of a 60 watt lightbulb designed to operate at 120 vgk 2*4x;nukmmit l;inzt ,+c3olts?

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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 that is dissc :tim;aln10 xipating 36 watts of pow;a:cxnlt1 mi 0er?

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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 cloe71 rl2oupe.pthes is marked "120 volt, 600 watt.” In normal use, the current in it 72p re 1up.loeis

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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 followg+ak dt ,75v fabbp6.nf4f )bting resistances could NOT be produced by a circuit containing only three identical ,b+p6 g bfnaf7vft45)t a.kbd 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 equ313bh8gumr.v bzl .nit8fmq* ivalent resistances CANNOT be produced using all three resisq h8*rm.t f3m.uibvg83bnl1 ztors?

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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 diffe wacll4 :-0 hifia,n*arent values can be connected together in different configurati*-lchinw l4aaa0,: fions. If all three resistors are used in a circuit, how 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 resz1y k5/eb t amz*mfr()istor is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a cirz m5r1t( fme*a /)kbyzcuit 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 q .++lwv-lo bw0fm5s/lbfgg6, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resilsb.omfvgfw6/ g lqb5-w++l0 stances 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 to(67pfda qx9p4c) rinqhek .7 hat it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of tim9(eapxqni6d .7 okqc 7f4hr)pe 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 through a 4 ohm resistor r7sz/n)cufgr)gqq)8 xy5k7x that is dissipating 36 watts of powg / cqn58s7xk7zrr qu)f)xyg )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 9vbwkesx.e./ vna /6nhl;te /current when connected to 120 volts. If the price of electricity/ vs/.69lne nbvxa ./;ewetkh 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 co *k5uffz5;lx6 57i+dey0v ba ha:x zcintinuously yl 5ak;fhuzd65f :iib7 *5e0 vxzx+ac 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 resultrvjoqpv 6p37 b33il9l ,nu .jhs in a power of 24.0 W associated with the bulb. Which one of the following choices bes3 npu r9lo.,3jv3ih6vq bj 7plt 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 waf4g lussy*o9*5bio( ttts in a 120 V circuit. If all 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 sametf5*9(iuo*ys4g ol st bime?

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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 simple c0gmxb;rr)r)circuit ;)m)0gc bxrrr as 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 is connected to four resistors to form a simple circuit g u ykjxd/72uu s:fbkur( bg4h *090jgas shown to th xy9rhk*d:gj7ugu /s ugb 04bj20kuf(e 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 resistors1x,0(m.nl 4ykgj qyoy are connected agy4l nyoky0qj( m1.x, s 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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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 switch a2tg1fiv9n4/o hi3az z gq6x+wnd three resistors are connected /g63nqaohz2tf19xig+ w viz4as 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, an ideal ammeter, a switch and threcm mh:vt w3c0jr1a9; ce resistors are connected as shown. c c9r:c3w0;hamtj v1m 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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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 ezbd k8kfx25u1 650zjwpe umryqq -4e)quivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have idf54rmp5ukk60y jq1) ebu -8 zdwxe2qzentical 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 equivalennxk2ke+te/q:(-d+vq s, pg tvt resistance of the circuit shown to the right with resistan qxvev,negp/td-k(:+t 2 skq+ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistory 7w+s898 k:fdehumq1f1ruv0 7ln zlcs connected in a combination series and parallel circl 1019nvsluf8 kh q:z+ 7e78urfdcywm uit 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 be2nsv8 4l qsn8oy9:gvdlow shows five identical resistors connected in a combination series and parallel ciyv 88g4nn9 osl:s v2qdrcuit 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 the bulbs are identican 03dmqxs13 krus:qm59x/:mx g v7lrkl. Which bulb will be the brightest/qx3 d m57lq0xkm:3nrk :v9 sr1msugx?


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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 9q:np gouo(,iideal ammeter, a switch and three resistors are connected as shown. Wi gi ou9,nq:op(th 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 7rlflih6 hfo9u1 vn27 ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.7io6rl7u9l1fh hf2 vn0 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 battla0rx8x/ .ehuery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diexa0 /.rl xu8hagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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