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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 circui1q ,a* wult)6frw rl/nt shown, an electric current exists in the metal resistor 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 el,f r6/w *)rwqla1n tluectric 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__pf r8k/* pkn*g/ p/2biya3qz l_______each resistor is nl/qi8b3gk2 ap*p f*/p/ykzrthe 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 lightbulb causes the filaw o2yg 5l 2l81msqx+ 6ibdy7xement to become white hot, while the larger wires connected to the lightbulb remaise2 6l lygxyqod7 x82w1i+5bmn 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 Lrdhu-;0ya x w9EDs. LED is the acronym for which one of the following choices-r0xduhya9 ; w?

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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 resis* .1 ugz lq*hs9 lw3ls(x0ihsator 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 cylindricix3w1aslq hl gl.0z9 (s*u hs*al 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. Wir9 3ze pws40dhre II has twice the diameter and twice the sedwrz 09h3 p4length 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 thn.xa9mn4.s.. ygo9eos9,r o/pmtl afe same material but has twice the diameter and half the length of wire Xnt.9 a,yl/m.x e9sn49 .soom.grfapo . 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 piece of matel18zr/ da0t+s u9pw aerial is then drawn so that it is a cylinder with new length 2L. What happens to the resistar1+0 lt8a d/9aes zwupnce 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 maw.l6gkd +,pnk g z3ob1ke a brighter 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 light at a given voltage? 6gk3oklg, 1w.d+p z nb


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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 the same material. The length and6sq5 mwr+qb z- radius of each resistor is:b6 q-+zrw5 msq
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, qsa6f6f a;qz9cr8 at 5each of resistance R, 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 setaf8sr fqt6;qz9aac6 5 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 circui4nky-xga:zrv1-+w n d t diagram has internal resistance 10 -a nwv gkx41:z-+dnry.0 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 j7pkk5i u4q3 tshown to the right. The three bulbs 1, 2, and 3 - represented as resistout5743i kpjk qrs 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 electq4x(z9eep ap 2rical circuit at the right. If the current in all t( pex2zqe4p 9ahree resistors 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 composed of 5 y0/oz rq(wo o+ia/ y9lnh.;ox identical light bulbs and 2 flashlight cells. wx +r zi/ aoo90(y oq/h;n.yolWhich 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 s)i mcmhxn y4.d0 k 6bn(v;bg5ltatements is NOT true concerning the simple circuit shown whb5)ig hmnc.0x4nydmbklv ;(6ere resistors 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 y p,)pbj8r3 zxbs +m9tbattery. 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 tr s +bty)pxbp,93 jmz8he 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 weev.+ 145j/iw (mqy2 xvlzt e6k3xr fqill pass through the identified resistor in 5 seconds once thxv.q/ j3+qiw x y2 rvt6(kemfl ez1e54e 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 sim 6g/4a v.jk-i6ytcqsbple circuit have the same resista4 ygv /bs6.-acjqikt6 nce, 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 accompanying c lgwmnjho3p )zzyj2e+7 -*73 x efvgg:ircuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is thx*vg 7jn mzeg3p-:z7 ye3f+lw)hjog2 e 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 conn0gex//r:uhw;y1(wpld /q6hklk8 h rolf p+t5ected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipat5h1hxkwupl:f(p r /6lt +d8er 0l/y; kg/owqhes 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 conmjst6d z; :m6b fwbr7bvx01 x,nected in parallel to a battery. Suppose R1 hasmfbm zx 6 :,jbrsw7;160vbd xt 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 1200 watts and 120 volts. What is tht)fgq6ip:i t0 e maximum vqptf0t)6 i g:ialue 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 resistance of a 60 watt l v76 7)ed:uiga1 q jn-e9crca :6tznuzightbulb designed to operate at 120 vol1c:ucv6uze)-e: z7i7r j agnntd6 q a9ts?

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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 resizoxm 5;rc z,;sstor that is dissipating 36 watts of powe s5orz ,zcmx;;r?

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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 "120 qw c07ajl,c;v. 7ha oxvolt, 600 watt.” In normal use, the loh,0 7xqa vj;7cw.accurrent 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 follo*x 2nsc9 9kqn hekle3)wing resistances could NOT be produced by a circuit containing only three identical h)e9n9qkk3c l*e2xsn6Ω 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 followingpuro(4na+:lu 0 5jkve equivalent resistances CANNOT be produced uso jrnl4u+v0ae k:p (u5ing 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 values3iyvln/d+ g8c can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can by+8l/dgn3ic v e 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 battery, a total power P is p / mb9b8jlkj.dissipated in the circuit. How much total powermbj. b 9l8j/pk is dissipated in a circuit 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, having rib zari.6 5nnjp-m 4+gesistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the foll6. an- 5nj+g iprmi4zbowing 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 resista c55 gkd0)dwv fed+.rtnce of 12Ω when operating at 120 volts. Whk twd)g5.r+ev0c f d5dat 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 o. p)h6y(ciyl,i1v ulohm resistor that is dissipating 36 watts of powep,v)6y.l hy i(i1uolcr?

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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 amperey*8d,x: kmn pps of current when connected to 120 volts. If the ppd,ykn*8x m: 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 woulu4 h1z41c lnum r6wz5xd it cost to keep a 100W lightbulb lit continuously for 1 year at a rah54mz4z uw u x161clnrte 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 se okoz)4( 6tcA through a lightbulb results in a power of 24.0 W associated wt4os ocz e6k()ith 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 comk)b ay(rrb5zp 0pei01)m pfd/ puter 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 of the comput 0)pm0pdb 1bri5rep(f) zy/k aers 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 cir4+ dvzj+;bguvyd* zn 3cuit as shown tz+ n;+4v dz*gubyvjd3 o 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 resist.cslx(tn z6q;ors to form a simple circuit as shown to s(zl. 6; qtcxnthe 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 resistors are connychw3(nduj1d ( (u+ qbected as shown. With the swd( 1nud+hbju3 wqy ((citch 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 fo z:*k:o0lpo3v5ihvn:7bfy, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shooiby:l :fv :*7p ok5fnhzo3v0wn 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 andqufjlp+rv0 j( 4l(uj. three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampefpu( l(rj j4u+vq j.0lres.
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 resistanch4l dng+ lto;l:- g9fvmhsr(b0/yv (re? Assume that-tn(fs/9r gll0lv4d b+h: oyv gh(rm; all 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 right with,kq;i; 9fuxj5hpzv y9 resis; ixpk j fy99uhv;q,5ztances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 f 9/ba vee6ec:aive identical resistors connected in a combination series and parallel circuit to a voltage so:/ b6ae9ece avurce.
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 resistors com 2 nz7 oe)60ns,tx ulse9g/mjnnected in a combination series and parallel circuit to a on /n7x)ezm0st,m2l ues j6g 9voltage 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 circuitcl c (k /gh5h.*xo9gaqb 6o)ov diagram, all of the bulbs are identical. Which bulb will be the 5h /oob.lc9q*c h( 6av)xkog gbrightest?


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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 7jd (sr ,tc7 jzxw-bd+are connected as sb zrdjwd+ -ts,c(7j7 xhown. 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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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 ry( qbqu4 qt-gl6/k,2ll 4oi athree resistors are connected as shown. With the switch open as shown in the diagram the 6,o (q4 iglr/-4qabl2y qklutammeter 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 amm jgbj8ii01widnx* (7 reter, a switch and three resistors are connected as shown. With the switch 8rbjx7ijwd i0i(gn 1* 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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