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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 resistor2ktt5k uqd v0* connected to the battery. Which one of the following choices best describes the direction of e*5t2vduk 0ktq lectron 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 reg exn6 c8,clid;)h+mrsistors are connected in parallel, the_________each resistor is the sam)nc g 8d6+mhx ,;celire.

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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 thro9)l e-hvgzofcb7nt):2 h z/jhugh the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain mle )h )zobhf vg-9h zc/t:n27juch 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 houseufs9w-0qd4 f( zl 0j.ijqn,vj hold lights are being replaced with LEDs. LED is the acronym for which one of the following c-q(wfljz nd, j4sjv 00u9qfi.hoices?

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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 ha /hj08j: t; v.n9f( 6 pqei)y.rsms.ttvhskd ws length L and cross-sectional area A. It is to be placed intof.vn8t.j(tvss90pwm.j r t :i/;qy6sh dhke) 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 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 materi i/akp/),f;)ck;a8ozhrup idal. Wire II has twice the diameter and twice the length of I. If I has resi, /;a)p p;8zurc/hkio id k)fastance 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 same8a- /-:s .rma dhlsd0zgg2ebs material but has twice the diameter and half the lengt s z 2b0s/ma:.rdse hlgagd--8h 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 length L and radius r. This piec;dxb a36nra z(1oi;nk e of material isn3ki nx ;(z6a;1a ordb then drawn so that it is a cylinder with 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 bp1)nzdn2 teq 4s wub6vf:p.g3 righter light bulb. He decides to modify the fila1tn:3 ens gv )pd ub.w2qz6pf4ment. 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 are made of/p lxa+lt1 kxr5+fv*z( rctc/ the same material. The length and radius of each resistor it1xz* +kv(c pr/ftl+r la /c5xs:
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 connected to a battery in the y lnq 5kh .6abh.i2z2fcx( g(zfollowing way: “Two resistors are connected in series. This combination a(z f5.ikl2chz6.(by ngqx h2of 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 diagratr9i7sg.:yih* 90) mjcq igwnm has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter readingi.0 g7ng9 y9jwichqim:*r) st 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 sho4lf0dz g:e2ra2)+njr5ns:hnle ah2x c w3 ax- wn to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diag+ 5xrw:e)a2asnnzg3 4 h2hl:rn0d-exafl 2j cram
- 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 current in allub).iv;rw + gk three resistors i;vr+b)k.u wgis 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 electri3l v2d16 dkyzec circuit composed of 5 identical light bulbsv 3k62z ddeyl1 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 ise3 c..p)tf sv:i,m ojy NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resic, 3)vefmj:ip.tsy o.stances?


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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 connecte)mjm+jjl f/7; zcqsh2h3 m cm)9d8ytmd 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 pcf) s/;htqj hm2mj z c8m3ym )+d9jm7larallel 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 through theu:6z4qra3 eop identified resistor in 5 seconds once the :op4 ea6qr3uz 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 i7:h ;rmnd kk.wn the following simple circuit have the same resistance, which would dissipate the greatest ponkkd7r; h:.wm wer?


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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 circubyu5v.-xhi fn9vac zjgj kn(3:/7.oe it diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V?hfeknoyv7jxij53: (/a.n- . c9bvzgu


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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 : ot03c4rvjtlconnected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has v4or j:c0l t3ta 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 t m-l* 9 8c 83m6 ndy9r4po(fa8reoqx+shnhc aresistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across ith6an qsax 3r -hlc trc8o9 p+d8mnm9y (*e8f4o, R2 = 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 12bwt 8ojes8heth64b 5, 00 watts and 120 volts. What is the maximum value of the current undjw t ts5 46,88hobebeher 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 operate at j ,h,s,ojwh7j120 vos,j,hh,ojj 7wlts?

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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 ress,j3 7ge 6ijjjuz co-0istor that is dissipating 36 wattsz-ucojgej6 0s7 j3j,i 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 gubkt8)5lo e6"120 volt, 600 watt.” In normal use, the currentgub8le 6o) kt5 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 resiz(vpr eh/qvi+0/e n9rgu8 gx1 stances could NOT be produced by a circuit containinieg1/ grz9ev pun (8+v/xr h0qg 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 resis1czk6p a70vur tors. Which of the following equivalent resistances CANNOT be produced using all three resz0v7k 6urca1p istors?

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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 ,+, /ku hj*6f6ydsykg pcb 7wccan be connected together in different configurations. If all three resistors are used, *cgpd/j+kcy ukhb7,6fy6 ws 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 resistor is connected to a battey6q,+ iw pr-i5)yjbvsry, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using thesb5i,+)rjwyq 6i ypv- 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, are connected in parall0- 5t8m jlbmmhc,)g5k;9c hf gi )cndrel, the ef)h;55cikb-0cmg h)r mtjdm lgnc89 , quivalent resistance of the combination is 5Ω . 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 resistancf7vzg6-m g ) r,d-stdye of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of watd-t)7- zv dgy, s6fmrger 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 bex+k d3p ct.v1f6j5 ,bu :d a c/odvoxhwf781through a 4 ohm resistor that is dissipating 36 watts of powxdvje 7vfhf /paw 5oc:d 6,k bb311ud. 8cxt+oer?

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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 connected / i9ev mg;3krd-dvw9ito 120 volts. Ikw99em3 iig /v;- ddrvf the 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 keep dqx4p g+rmqu: */6ihya 100W lightbulb lit continuously for 1 year at a rate of x6md*q gypi uh4q:r +/$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 in a powerhq0guf/f 820ep. 1h t (ksshfz of 24.0 W associated with the bulb. Which one ofhp.h 8(tgkhe/zsfs q102 f0fu 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 famila8 z )l .b,k22scxkuzhy of six 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 numb8, )bhxkz lz2.k sac2uer 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 simple circuivqm;+,cr,dc -t,y dba4 bndv) t as shown ,,b;c d mdtvab4dcyv,r+-q)nto 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 sicc,*sjrc;d:yke:8 7 n1co, xpj2ycvk mple circuit as shown to the rignccy; j:,pc d: s*,oy7k21er c xcv8jkht.
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 sz +.s:7qt1quzvx)1icpj 9i jzwitch and three resistors are connected as shown.pz:z. 7t z)i su+xcqjq91ji 1v 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 batt oe6g-29srsqv ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as qgev29sr 6s-oshown 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 thre 1f2mwd hhmx(o m*+/kae resistors are connected as shown. With the switch open as shownx/*fw (h1+m dmmah2ok 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 equivalent r swoq*i9uf0q* wzmc68 j:0z h6an:zqi esistance? Assume that all wires are ideal, tj9:n h68caq*6*w qfwio 0: sz z0mqzuihe 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 resistance of the circuit shown c +x)xn u51i3qf b ty5(m(acuc4a am7r to the right with resistance7 aurcx(f1bx3t+ q4c5cmm5ay)i nu( a s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 showy:9) ci fl f6 fu)b.gg:cg3obds five identical resistors connected in a combination series and parallel circuil 3uo) fgi bcdg9:f.cf:6bg y)t 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 resistojx(henj48aoy0;gm i g5 rg/np71 bi5urs connected in a combination series and parallel circu(7 u j5ig a/piy;nmojb 485grh negx01it 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 v )/ucfjvp) y1are identical. Which bulb wiu)f)vc1/y jpv ll 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 ammeteg+(kxji+ n(:wwh*g svr, a switch and three resistors are connected as shown. With the switch open as :* kxsj+w(nghv+w(gi 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 resistopjod;/5rp8qnhh t-7 qrs are connected as shown. With the switch open as shown in the diagram the amme8 ;onh/5pq7dr -htqp jter 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, dr 6 )5o-llnvcan ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amm5r-v6cl no d)leter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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