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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 resistornba- e8eq i-a/ 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 oaeq/--a bi8 enf 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 pk qu+9 ua3pg0 gqtyl++arallel, the_________each resistor is the s3t q gyug0kq+pl9++ auame.

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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 ligh4ktp8mh d 4en9gt n;c;tbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remai9dhk4n4;8tt e mn;cpg n 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 household lights are being replaced with LEDs.q go 8o nze(,l3fw.r s.1 *8mg:mhpiaa LED is the acronym for which one of the a(mq8ez. o l:wf m*3s .gr8nhago1,i pfollowing 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 lengtyk3t+iov zrq;g99 xjbvn9jt+: 9pok7 h 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 resistopvrk; g9z97vo+9 y3+btqk t:j9i jxnor?

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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 w.d;4 qr;ieavkx ss6*made of the same material. Wire II has twice the diameter and twice the lis ex kq*6;wars;vd4 .ength 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 ts1+k 5id g/il9km 8cti3z3runhe 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 a resis/kgmsdlcik9z53 i r1u+n3ti8tance 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 z k 6(* hz+u 0me1vqcosq.imo:radius r. This piece of material is then drawn so that it is a cylinder with new lengthomco0sz6*u+.:zqe 1vh m( iqk 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 brig c84*pgroe65li teg b0hter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light0 5 ebgec6rpol g48t*i 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 resisto k ,h1( jh;uvtyh2:bbors are made of the same material. The length and radius of each r (tu,h jh ykb2bv;1:hoesistor 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, arayi6ruix-ndf09 s pw+z6,p2he connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in para6d9zp u+yx,h6 i0pn iwa2 rs-fllel 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 ac1ceo kmpkced,a /s6 v2n)+rr. companying circuit diagram has internal resistance 10.0 kW and the ammeter has internal ak ecn/o r6rks1mp.)c+2ved ,resistance 25.0 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 bnbz rv9 dz*w2a+ 3mh:the right. The three bulbs 1, 2, and 3 a*9n b b2mdzzr+: vhw3- represented 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 right. If the current in all +i v)h uu-byd9three resistors is equal, which of the following statements muy)+ui vhud-b9 st 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 yk0 ju:yhlkesv6uqs(:v3 a 4*electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Wshv :e:03y s(6*uj kq4yvlakuhich 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 simple cir23n w)ya5mxaaz::s otcuit shown where resistors R1, R2 and R3 are have equal resisw25sa on:y3 azma)xt:tances?


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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 series5 /,- wtpeuvbm to a battery. Bulb X is brighter than t p ,uevm/5bw-bulb Y. Assume all circuit elements are ideal. If 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 througoyet aau4-(2y h the identified resistor in 5 seconds yyeut( 4-2a aoonce 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 following simple circuit have 4dxtmp -y*od8ad)gs5 w b/c z0;ge*ytthe same resistance, which would dissipate the80c d ;e mtbz/od)g54tx *wdyspya- g* 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, tk5no2s, 6 iaw jl0xtq5he current through the 6.0 Ω resistor is 1.0 a5wjqk0n lxt2,65iso 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 R3 are connected in series to a ba,0t0 ,g*3mq a zfdzfi5k:dlrtttery. 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,:0atrf3l * 05 zgitkdz mqf,d 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 andR3 are connected in /pl85jv1sp0* vsp7aid *e(otuj :tcw parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What 1t:* vjte p0ujd5 i/7po 8(vslws*cp ais 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 1200 watts and 120 volts. What is the maximtx2e,3 /yd, kdjyu2-i3p ik8 pl;xudmum value of t2 k 3 ,,pxuild-3/y ;px 2key8dutdimjhe 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 desigx( ,lef6 h2c/zoz3lzoned to operate at 120 el2o f / zo(3z,clh6zxvolts?

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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 uves seab4v3db+;:c1,pan)lohm resistor that is dissipating 36 watts of1 4d:n)uve sble v;,sac3b+ ap 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 usihc 8.uyx z/cx*okv) (ed to press clothes is marked "120 volt, 600 watt.” In normal use, thiuc8(.oxx )/ h zkvyc*e 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 producelmj:x.r:p z;3 ndw 4axd by a circuit containing only three identical 6Ω resistorm x4jadn rx.3::;lp zws?

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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 resis8jhzzm m2lyal;b 2r -)tors. Which of the following equivalent z2zl r)hmlbjya;-m28resistances CANNOT 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 connected together in di2jc xnc(u6;f .qw rw-rfferent configurations. If all three resistors are used in a circuit, how many different values of total resistance can be produc(rn jw6cqf. ;w- xcru2ed?

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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 /1gd32em :lbw gh5m rcpower P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using th/m:ge5dmh3 wb12 lc gre 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 connecte 4k))* d0hd sq xdk,t)0wjr2jtsf4oth d in parallel, the equivalent resistance of the combination is 5Ω . Which of the following0k),th44t*j wstqfskh 2o j))0dd rxd 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 resistangtdovd1 z+96h ce of 12Ω when operating at 12oz 96+h1tvdgd 0 volts. What is the minimum amount of time 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 that is dissipating 36 wxtq cha 7vuu49o23uh 4 .3z e0oky1v+)lpelmbatt 4)1c240etb9 hu hz.q7la xku3e mv+oluov yp3s 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 1 339wz lww+nvw3 amperes of current when connected to 120 volts. In3w3lwz9+ wv wf 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 jftexs kdc3 sn,*by s4vi: ci5z*78;m cost to keep a 100W lightbulb lit continuously i: ,cb z*x i4fdk3eystj8;5s *m7vscnfor 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 njog /a2i9 euem0zs 23a lightbulb results in a power of 24.0 W associated with the bulb. Which e9a3 2/jm zsoig neu20one 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 otw- zduk,8 +yu4ua*a eoy xt(/f six owns a computer rated at 500 watts in a 120 V circuit. If all computers ar ado4 ,t yae-8/+(u zky*uxwtue 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 connedol)ne0 ye5 r+cted to four resistors to form a simple circuit as shown to the righ0e5nrd) o +eylt.
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 j .ybbg5:z,zb8kc (nsm-w .i( lg-lol as shown to the right.l 5okzy l n(z -bs:.,j bicl.8wbg-m(g
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,r dc8b.oxq)t2 an ideal ammeter, a switch and three resistors are connected as shown. With the switch robcdq). 28xtopen 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 and a(t bvrg(0; l/ex5fbk three resistors are connected as shown. With the switch open as shown ina0;ketr(fvb b/lg5 x ( 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 up ctl acrx12vq78:6m ujsu-;h y p)h(and three resistors are connected as shown. With the switch o:7(uhta8 - prypc c61mv ;ls)qu2uxhjpen 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 equivalentx9kok/ /in -lb;vwk.fl*y8 qt resistance? Assume that all wires v 8lyk*.f l/9b-ntqi kk /o;xware 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 resistance of the circuit sq41 os i2+fyushown to the right with resistances y 1suqoi42fs+ $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 cafw1gzi 7y)3 jzq h+p*onnected in a combination series and parallel circuit to a voltageq+31z z y7ah )pjgif*w 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 .is/x0uhesf1ghs*. c resistors connected in a combination series and parallel circuit to a voltsh0 fus . gxih1./*cesage 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 diagra. c: gx5w v-ma83spvwrm, all of the bulbs are identical. Which bulb will be the briwx5 v-vwg :.a8s c3prmghtest?


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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 and three resistors are c-1o an-ung yp+onnected as shown. Witnp+oy nua--1gh 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,c(k qaa p63 :h+/jzjzr a switch and three resistors are connected as shown. With the switch open as shown/3jr:zahacj( q +pz k6 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 r2rbzv2q; ds8i esistors are connected as shown. i;v s2qr82zd bWith 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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