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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 sh:vp bc -) 5tcnun1s(nqown, an electric current exists in the metal resistor connected to the batterysq n-n)v5pc(n b tu1c:. 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 connected in parallel, the___fn9 hyx)ci7v6+7f x 5pnmlc2c______each resistor is the same.9hx n6nl pfi y vcm2+xf57c)c7

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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 th 7xrar0i663exaabbhf d6 .0lle filame x ra6.0l0l6376i earahxfdbbnt to 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 are b xhsuhldei. xe5e1y( )*zf2*peing replaced with LEDs. LED is the acronym for which oneyh e2xe.ef1iud(ls 5p** )zhx 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 graphite resis 9ky e.acxo/0mxp *a0zk6o+ sjtor 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 ojksyxm 9ko ao0e c/ +za06.*pxf 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 material. o8 7pv2/ix ezlkjzpl2v)z 7,hWire II has twice the diameter and twice the length j)zpv2l h728/xez, li v7zkpoof 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 madel8lzevmza+qo t2 :1ev f( z7+ou7kr5t of the 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+km7tzal2:fe olquo7 v8 z(ztvre+51 tance 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 hb 7byzy0o+w*2q:e tjand radius r. This piece of material is then drawn so that it is a cylinder with neww+2ojb0b e*y7 zqyht : 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 wa0j 1 lxqfpgyi*u-njmt.v/ -7 3f;bjhunts to make 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 up.q--;uxgjn1l/ 0fy jbh7j3 m tiv*f?


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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 an,j7qa16zyd( sn9 surnp60sf id radius of each resistoay6 9s,insuzdqp76f0 s1rj( nr 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 resistors242g.jtnu jfy, each 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 ugj42.y j2tn fparallel 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 diagram has internal r02o5zrgd4 ni 9vgouz7d i 8hv7esistance 10.0 kW and the ammeter has interr9 gd h7z0254uid g voo7nv8zinal 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 toecc90da)ch ej jha+:. the right. The three bulbs 1, 2, and 3 - represented0cd hje.acc 9:hae+)j 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 electr x az,8)56gb(mywphtvical circuit at the right. If the current in all three resistors is equal, which of the following statemmw(5v)h ygp8txa ,z b6ents 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 sim m37wmy 1:cnneple electric circuit composed of 5 identical light bulbs and 2 flc1e ny3mn7wm: ashlight 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 followijrj: tyyt83 ryevm4u 4*4 gi1jng statements is NOT true concerning the simple circuit shown w1jyjjiy rmgt:u*y4etr4 8v 43here 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 bqn4cu1i2w - yamt59os attery. Bulb X is brighter than bulb Y. Assume all circuit elcn41iow2s qumt9ay 5-ements 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 through the identified res/ 3nm9beq7a khistor in 539bh/e knqa7 m seconds 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 simple circuit havann) i*(1,lg bjvkc m*c1y l2je the same resistance, whi*112g,*(kj j vciylmca)n l nbch 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 circ3i r+9flgi +oyuit diagram, the current through the 6.0 Ω resistor is 1.9+ oygli3f+ir0 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 resistorsedk9 o4v/ ri/2spjjvl*k0u* b R1, R2, and R3 are connected in series to a battery. Suppose R1 carrij s2dj4*v/v rkp9 uob0*el/i kes 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 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 ipj4 ytu d/ e8f q:pj/ux.y)/care connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 disj :y)i8/u/f/c 4dx up.t jeqypsipates 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 vor cip8 8 cj052t kph1k3xx9pvvlts. What is the maximum value of the current under these conditix8pc i3 tk8kjp p9xrcv25 h1v0ons?

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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 opjkjg61jn9 (,bid bmr0erate at 120 bbjd01,9j(6m nirgj kvolts?

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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 iszqsa 9s( td,:5r;y m6goykgw l-cm:v- dissipating 36 watts of zoamm9yt6r5gsq lsdy:-;(k - w v:g,c 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 gclv 96 7x/n1okfc ckb(i(3u mto press clothes is marked "120 volt, 600 watt.” In normkcgmbniku /7cx6 (vfo1 9 3cl(al use, the 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 resi5/z sw7a2 mas4m-us ozstances could NOT be produced by a circuit containing only thr s5s /om4-zawusmaz 72ee 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 resisto3eq9nc(7wc ,eej izw zdg +c8y;5atr)rs. Which of the following equivalent resistances)(cwn +i7q te93e z8,; ecayj gd5wcrz 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 d l r+ts*1hgh at / zwe)h,qp-:t1,odoqifferent configurations. If-swt,roz dh+h t o,tha)1l g: p1q*e/q all three 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 conpqa0h) xqqvzf*+4x3l nected 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 is zero v4xlq a)3qq*hxzp0+f.

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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, +pj2 aeu .b,paezz*:hlho.6g are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is corg za+.he*6a ,:hz jl e.2ubpoprect?

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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,/kmnja /0i tm such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time , t0/in/ammjk 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 dissipa3 ;hy0 nz+oukuting 36 watts ok zuy3 ;u+hn0of 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 amperes of current when connected to 120 0q+7p ubcn+q8u - oqfkvolts. If the price of electricit+7ufn 8 -cpq+ub0okqqy 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 7y.zkol (. u(qgzw 0pnkeep a 100W lightbulb lit continuously forp(7(0g n .wlyu kozzq. 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 j+g)rs /jhds 53f/o0m,tctvv a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices bvjr3)/ /osmcj gtfs+vd5 , h0test 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 compu 6-mgom9ute c2*kw hzp9dd/y7ter rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protd7ge hdc */ok92umy9m-w6zp tected 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 resist9u* trk1 ghta1ors to form a simple circuit as shown to the right. ht1*tk1g ur9a
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 oxa3+x1k7p 74xia6svlc3r on to four resistors to form a simple circuit as shown to the right x cx63vxlnra 147o+kospi7a3.
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 resisth +o5x7m t mj827qwdye m -p:yi:xc2qjors are connected as shown. With the switch open as shown in the diagram the ammeter reh: - qjd:p22 ywtm5+xqmx7emjo 8i7cy ads 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, ar*s+ k 2b5wm.8eet.,y urhfaun ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the 58et ekmu*ba .rhf+,2wy sr.udiagram 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,ykljal1 82: w+ wuv-eb an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 awal28-e +bl wk:yu1 vjmperes.
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 sg9 s5ma hp 6gabpmp5,ruh7 7u0hlt8:dhown to the right, what is the equivalent resistance? Assume that all wires are ideal, the ba7ul gab8dhu, psp5t67a0hrg 9:5h pmmttery 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 roo aq8-50 eapa6*/ + udnnqr8fdib;jsight with resistancedq+6d-baj ne/qusr 8if0 5; n8p o*aaos $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 sskigur+.;j3yb;3dukbhn m:; p r+ h7t m6j5gxhows five identical resistors connected in a combination series and parallel circuit to mu n.bjs76t5humi ;:+;k33xd+j ;yr k hggpbra 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 resistors cqn+s55/ f gor qsjf7c1onnected in a combination series and parallel circuit to a voltage so +/rf1jgq5fs7n o5cqsurce.
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 are idevk,:sb7p 97xb )rqc dcntical. Which bulb will be the bsv97x :krb 7)bdc,cq prightest?


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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 r)k9fc4tl+m wiu++ hpoyir , 0g iuv5(sesistors are connected as shown. With the switch open as shown in the y+5tu hpvg, rwfi4co0uk(si9i+ ) l+mdiagram 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 amd0elt+ tkhx26 meter, a switch and three resistors are connected as shown. With the switch open as shown in h6+2k0t dlextthe 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 sd8 .c 7 wrlmgsg:4t/oxwitch and three resistors are connected as shown. With the switch open as shown in the diagoc84. /ml7xtg wdsg:rram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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