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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, 7oh( xfe oc8hj by5ua+, arld/231 clran electric current exists in the metal resistor connehe cbo/ ( cfrojxa,a1lr+8 25ld7uh3 ycted 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 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 x6urs/e5 w au :uyep:3connected in parallel, the_________each resistor is t6:puus/xawu3r5ee:y he 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 fof6ru5 (;4( qgy6o:gpe yw jun4sjs*yilament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler un4yquo6r;5sgwo jpf* j4ys: y(6g(e. 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 nuhg:46w;ghn/gz8 ;zq1k v ou are being replaced with LEDs. LED is the acronym for which one of the fo41o/w6khu:nzng;hz vg;8 qg ullowing 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 hhrv+sv. qi 44,c+s axarea A. It is to be placed into a circuit, but it first must be cut in halv4+ q +v.r,h hxc4iassf 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 mater iyko rk(e6 w6al:o:nppqb/38ial. Wire II has twice the diameter and twice the length of I. If I has resistance Rn6(8r/ l6a:y :kbqok peip3 ow, 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 bhsfri3.w8dtm2j r/0pxi;e6u /cpp ,j ut 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 resistance r d. h2;c0iptmp r8,//s u6pfe3jjiwxof

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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 lengti0az0: wlnr-ph 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 resistwlpri0 :n0 a-zance 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 light bulba.;m. ;zv1y ,ldda u8 gizd.bj. He decides to modify the filament. How should the filament of a lightbulb be .jd8,agmib;zzl u..v da ; 1dymodified 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 ofqpfodf9 ,h) )w the same material. The length andq) oh,pd f)f9w radius 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 resistance Ri q/8hf9onty ., 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 hfn oy /itq9.8set 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 circu4plb xd9.;kwzit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltme w 4klxd;b9.pzter 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 n )wfzx gx:ui (pv0:k.tmx9t(the right. The three bulbs 1, 2, and 3 - represented as resistors in thexgxzk0u)w9x .: t ((nv:pfti m 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 kpll 4sg/dfq r0obm:4rkw/ny.jl: *: at the right. If the current in all three resistorsbmdls44n. wr oyl/ *:g rkl:jq/k:p0f 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 cot:0o femxy x:dlk67z9 mposed of 5 identical light bulbs and 2fl 7::oedmt 9x0k z6yx 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 is NOT true concerning tyh7*r3 pebefk.: 5l n0ssjfr9 he simple circuit shown where . f7s lbrse:*np5j3ye0 fr9h kresistors R1, R2 and R3 are have equal resistances?


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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 to a battery. Bcfdw d*ty lw:4w,n5 fr9ljju4gd+hh4t6l*c ; ulb 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, wh4jtldlrf4gw +dhwcuh5l6 tc**,f 4 y9:dw;jnich 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 coulf s9in7 j1wq6lombs will pass through the identified resistor in 5 seconds once the1isnw 7qjf69l 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 ci77 --tegr o:*zo9p39tho dnnwvb8ffprcuit have the s- 3r w t8f:vhfp9oneogpn7b9odt-z*7 ame 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 accompanyinwxl77)u 0 qubug circuit diagram, the current through the 6.0 Ω resistor is 1.0 A 7ub x0wu7lqu). 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 bat ddsoa8uss9 c rn7 +yqk,tq299tery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3ok97suy cqd 9st9n d+sr28qa, 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 andR3 are con/m,ds ci gl:s8nected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 disms/ isc, 8dlg:sipates 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 1200 watts and 120 voltsvom 5u (qc+se;. What is the maximum value of the current under these conditism+e 5;vqu (ocons?

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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 y3ag):(il naf/g;lbj operate at 120 volts?nab);g ali (:l/ jyfg3

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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 disss8bu, vi;bq(:m ched-k5sq ctn z(3 p*ipating 36 wattstmvd s-* b5:k3b,n;c(s h(uz8 iecqpq 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 x)w n xj2(t6zqused to press clothes is marked "120 volt, 600 watt.” In normal use, the current in xt nz(wj26x )qit 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 produced :*nf7uhu 2tjlby a circuit containing only nluu:t7* j2 fhthree 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 resisto8efgks 3 dx3cre2qy4( rs. Which of the following equivalent resistances CANNOT be produced us xq43c(82eedkrf g3sying 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 connek/z)5j3/ i hjxo3ckx octed together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance zxkk)o35o/x jic3 /jhcan 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 ct8ljm3 y zo5)ykt 97ngonnected to a battery, 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 g n9lyy3t8joz )7m 5tkusing 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 resistooho,+ m z a xozu2y(m:+pt)y*mrs, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is corym* zya m:(ho) u xm2+o+o,ptzrect?

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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 klu*ks,+m i 8iyi- p+x3,efiz that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of waukfky -+isp,em*zi8xi, 3 +l iter 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* dx*znd+i;l b is dissipating 36 wadd; zbxli*n+ *tts 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 13 amlh dg sci:5j.moms9c3j yy-6ft10 f ,pperes of current when connected to 120 volts. If the price of electricity c5ymo fgj .ly:-j9mt3,6p ssfd0 c1ihis $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 10am,rd,rt3 il9li 89y v0W lightbulb lit continuously fi,tld 9m,389 ayrir vlor 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 results in a po-yo;t3bixj3+ ka1u kuzh2 ,xskpo 9p5wer of 24.ku3kxi,p zo1;sxpk5tabu 2 3 oyhj9+-0 W associated with 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 of six owns a comput+j )f6 nydh8a 1qt6liqer 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 number oflj6)8y6tqq1d fhn ai+ 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 battb/x: mg:g2jh lsa7 dxqh(tf* 1ery is connected to four resistors to form a simple circuit as *xh:gjf (qma1xt / gh:db2s7l 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 wd 6,pnn2rtfr/ hg)7j to four resistors to form a simple circuit as shown to the right. t)w7fdn j,/ grr n62ph
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 switc( w8 -7bmp7jqlyjvs3ch and three resistors are connected as shown. With the switch open as shown in ty vm7-b3s jlpw j(q7c8he 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 three resiston1 yt f:z;yd/vrs are connected as shown. With the switch open as shown in the diagram tf :1y;zt/ ynvdhe 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 ammeterr2d34a-ako8swor 3m m p9b.v q, a switch and three resistors are connected as shown. With the switch open as showmar8 b 9wdvr-4k 3amoq3s.2p on 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 right3kgo y;xiye7.; (ntkf , what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal r;yn(efiy3tk go.7; kx esistance, 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 to the rie*/aml qb(/fdoe29 dcght with resistances bm /dlfec9(* d2/qoea$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connected in a combinatl qq kr2d-efh9 vs6a(:8(z-ozd w6hqaion series and parallel circ6hd--z ozq8v6 awq rs9qk lh2f(a(e:duit 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 resisto700 fb uru+x mdtj4nj6rs connected in a combination series and parallel circuit to a vobj xmt6d +r74fn0uu0jltage 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 di)y x; r0phn(y cl/a6wlagram, all of the bulbs are identical. Which bulb will be the brighy;)aync x(w 60llh pr/test?


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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,2z q1ah)7sp nf a switch and three resistors are connected as shown. With thz1 n)q7sfap2 he 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 th,n3i2q lrbpx2 ree resistors are connected as shox qr3bi2 ,n2plwn. 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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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 thre. t6g/ qgyr,bme resistors are connected as shown. With the switch open as stgy .b6rg/,mq hown in the diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


参考答案:    
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