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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 metats.kneb32z b/)o.b l36l vtfw0h dqzbm9z*9ll resistor connected to the battery. Which one of the following choices best describes the dzmsk.0e6*b2.tf hl3bnw ) 9ldz9qv/ 3bbzol tirection 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, the_______x d 2/u.zcuc2q__each resistor is t 2udq.x/u2zcc 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 filament wire of a lightc13lwsf67h dbbulb causes the filament 3h1w bc6l fsd7to become white hot, while the larger wires connected to the lightbulb remain 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 ake9ab+fs 66ngre being replaced with LEDs. LED is the acronym9kf6e sn+gb 6a 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 graphit pl ip6b,fzj02e 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 cylindricazpl pbi, 20f6jl 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 - r4p8lzmm7qn;isq*x 9(lu vesame material. Wire II has twice the diameter and twicepq mn7(lsrezuq 8vl im*;x94- the length 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 diamete5 sgd9/h,hh8h( u5 xlrycoh 7dr and half the length of wire X. If wire X has a resistance of R theshuc9l/o dhhgh,8(55x7yh rd n 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 piece of materiwh:k3/h* ; qi8 o-bke7cvo1ax u 7smdjal is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of tkboumq-hsxh 7i31o;7/ w e*kdcj8v:a his 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 p9w7;3wr cdbeyx- kgs m8yf+3 Edison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a 9syrxgy87 pwc3we;fm 3-k+db 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 ee*zvhy9/:fcblai:0 q :hd7xare made of the same material. The length and radius of eexvh90dzq:ica :/ l7h*eyb :fach 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 R, akpube-c (zo+cp -(,i 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 set of three resistors is connected in series to a fourth resistor.” What is the eqeopcu-b +p ck,azi( (-uivalent 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 accomp 2 h9uvp6y(zolvx97ebr8jy d3 anying circuit diagram has internal resistance 10.3yu(vx rvdy j 99eb786hpl2oz0 kW and the ammeter has internal 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 the right. The three bulbn) c/qr00xhgu0 l+ck( k* lkrks 1, 2, and 3 - represented as r n/k0(u0kr*cg)0hc+l r kq xklesistors 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 +thia41mx43+na1p craz4 ogl three resistors is equal, which of the following statements13l+th maa4axz4 oi1g 4npcr+ 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 rkwr o-); kfya1ight represents a simple electric circuit composed of 5 identicakk)f-ora1y ;wl 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 state84bq1n1 sne:v b3d aiaments is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have 1 va84sbqeda3n:b 1ni 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 Xk9yj5ukb yqa4+x+t o+ lr3d.s andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs +tu+54ydkk.+qrjbx l9oy 3sa 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 through the identifiet 8n8fieal+3+ gl wu*nmuv 49xqim8. yd resistor in 5 se f q3y9i+*8lixugn aeu+n.l8v8m wmt4 conds 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 following s td dr,s95i) ga2sf6mwimple circuit have the same resistance, which would dissipate the greatest pitw6)frd ms95d sa ,2gower?


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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 6.0d k:tyeh4q1 r2 Ω resistor is 1der kq1thy4 2:.0 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 1h uii3n bjz/my hz0;:bv54cquw+/ mcare connected in 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 across Rzi;c/m 5+0h/: uqc3jmu z bby1 nhi4wv3?

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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 connecq pdfsu(w-tms.)g x04ted in parallel to a battery. Suppose R1 hasp(dtmf) w.q0ssgx-4 u 2V across it, 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 1200psx w h:g*ee3+ p8sa5l watts and 120 volts. What is the maximum value of the currents :+saxwe 8g*p 5l3eph 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 design)a1xz 44+*q0 )tksidhr goknaed to operate at 120 voltk)a z1dnt4)kxirq 0 hs o+g*4as?

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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 throughqsljo53w fy *6 a 4 ohm resistor that is dissipating 36 watts of qf5j 6soy3w*lpower?

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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 my7 f3vd 7.redparked "120 volt, 600 watt.” In normal use, the current in it i77.y3r ed pvfds

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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 by a circuit cob5)c8gze2 ttm0oa ;qmntaining only three identical 6Ω resa0gb ;2cqte)o58mz mtistors?

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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 rgj( jiw oysb e;wn:6g cw*6g5(esistors. Which of the following equivalent resistances CANNOT be produced usin wg *56:(gwjejnbsc(;w6y gi og 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 diff8s5pu/ o2t ,tb1;xwi jws pti4m +x)xzerent configurations. If all threw5i ,)b2tpsx8 ;4 xpt+zwi/tsmox 1uje 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 resistor is connecry ;c6w:ez( 2m l2+reekrc a1lted 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 using the same battery? Assume the internal resistance of the battery 1 r 2wmk:cle+y( 2rze;lare6cis 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 resisgv3cx q ,)h-ywtors, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of theyhvg -w,)xq3c 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 is47o 6dzbpghjj hl9l )fu31g*f designed such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would takel)h1g6 offhljg *zbd p943j7u 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 curre(1my 7 xtg4rvvv- c.thnt flows through a 4 ohm resistor that is dissipating 36 watts of pogv c r(yvv1m.-4txth 7wer?

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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 connect / q6fr;py7 xeg+pyf ,l,g:0tq 4zrowped to 120 volts. If the price :6fyg,;p,lpt rqyqfepxo7r +/4zg 0 wof 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 i y1 7),/cbx fqmeidaqc82tv0jt cost to keep a 100W lightbulb lit continuously for 1 year a8bfq)j q2xd, v7aic ec/0t1my t 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 ligh(kaaq xx3/ 8jytbulb results in a power of 24.0 W associated with the bulb. Which oqx3kaa/(8 jx yne 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 si.dkacuzm) tvt7p+ 4 b;x owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugg4cu pa .vdmb)7 zt+t;ked 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 connected to four resistorsh7kfwckf6u .ke*) 1/gfp/hcv 7 rwu 7z to form a simple circuit as shown7 wk*6zkfv)/fc7kru1f u g/h cphew.7 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 3n;;- kz smz,+ggjxagconnected to four resistors to form a simple circuit as shownzn- kj;,s;xg 3mgz+ag to the 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 aw i- )n+le8zypmmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diaew-+ 8)inl pzygram 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 ide8pk5cl1- / 1i mu2cofi *fasmdce+ sw4al ammeter, a switch and three resistors are connected as shown. With the eksf8am1cc1si c fiwmlu*2-p+d / 5o4switch 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 an 8ww:n4 widxa8d three resistors are connected as shown. With the switch open as shown in the diagra wa8wx 4:wnid8m 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 eqln;(xwj.vug7cs ,u 0ybqmu; (uivalent resistance? Assume that allcwl.vqx , uug(; 7jmn0;(busy wires are 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 shown to the osj-/rj4(nkhp y8gj ,right with resistance-/4p8hkojrny(g ,jjs 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 shows five identical resistors)tkapeb, 0w8vg ,5mctnc i( y2sz 27yk connected in a combination series and parallel circuit w,2,pzy5 2na8k0sc e)vbi ktgyc(t m7to 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 identica8a--lybtw) vgu x) q jv 4wycji(pw4t .qz.;9xl resistors connected in a combinatix)vv.g-yay.4(w ;c48bp j) liz-tuwjtqx9 qwon series and parallel 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 diav/f8,ws,aw 5:yrsse+kqq5;tu u 8mtn gram, all of the bulbs are identical. Which bulb will8t :kq;m+seuw ty,u 5/8f sw5, qsrnav 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 ammeter, a switch and thrh /yn4j :,;y*i3d8a+uj eprm0 gfgnrbee resistors are connected as shown. With the switch open as shown in the diagram the amn:mfjpy4 re+j aig /d,nhr;8*ub 30gymeter 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/1i7afb jf7g4ekyt0d ree resistors are connected as shown. With the swity4j k7g ti f10efad/7bch 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 andu;f) 0c1j 2- sguinvlm three resistors are connected as shown. With the switch open as shown in the diagram the ammeter lu; vic -j12sfm)0nugreads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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