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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 metaldae *8czn -qr.5jg5h jhs,p; m 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 th-zh,geq j.p*n rda8h 5m;cjs5 e 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 parallelxl6gxbg ;.y50d6itz a, the_________each resistor 6g ;x0i l5txb.ag6zyd is the 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 fil,.h 4i vscaj0lp4/ wibament to beco isb.i0 /4jlpa4c,wh vme 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 being replw+40es:bci(fhy 7ys nx w7ae5 aced with LEDs. LED is the acronym for which one of the follo b(y x7iwsf:c +y7sne5ahwe40 wing 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-sectiofu0t zq)glfn*lyx 1 *d0,d-emnal 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 negd,fzdl 0m)uf1ql 0e** xtny-w 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 a7 f;v -qjawi0pkx)8ge+ aafvkw66l6 ere made of the same material. Wire II has twice the diameter and twice the len f076;ga6eakwfq 6 i ljpa)-xevv +kw8gth 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 twiqk3r 1;zk ui/lce the diameter and half the length of ;rlq /u3ikz1kwire X. 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. Thu.q+4 pb ygy) zma9t8his piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of thb8gp)q +yam4 u9ztyh.is 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 ma6g0xt(ap/m*y 6bhxm g ke a brighter light bulb. He decides to modify the filament. x6 gyb0axph( m6/m*gtHow should the filament of a 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 azfhg+:v /.yxge;j ci9re made of the same material. The length and radius of each resistor is x9zh+ .gci:j;v/ygfe:
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, are connected to ee 0o 7uyjimyr+x ((u;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 ime (y+7 ;oeruyujx(0 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 resistanceelb/4y syk6 ;gp:/ xqw 10.0 kW and tp : g/elkwb/ yqs;y6x4he 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 co9yvkal sv 4/ e :l,o9p+lw:l1.iogebnmpound circuit shown to the right. The three bulbs 1, 2, and 3 - represleak4 elp.9ln+vwov:9l : yso bg/, i1ented 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 apm;i knv8m(l: t the right. If the current in all three resistors islp8m(n ikm;v: 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 circuit7 j s )iv(-uil:kfvpe4 composed of 5 identical light bulbs and 2 flashlight cellpks-)f:elu7i (ijv v4 s. 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 thsnxpdrfwn7za ; :;. k*e simple circuit shown whe7*x:;nwa;n k rf.dzsp re 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 batter/ks6iwke r7y*kq5p.nnqyw 0 9 y. Bulb X is brighter than bulwsr*9nn kikqw6 epy0y75k /.q b 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 through the 8t;ur3ayyf xmsa e30p21zg)p identified resistor in 5 secondsg2xezppafy mr31a)ts;30 yu8 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 fole,nc 6(flx ;w.6dpysipoi -o+lowing simple circuit have the same resistance, which wo n-d,e+. ; pioyow(xl6 p6cisfuld 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 accompa2x,bw j .rk/mttzvv8i* /f 0vznying circuit diagram, the current through the 6.0 Ω resis/x.mrttw0z *z8 /vkjvb2fv ,itor is 1.0 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 are cot e.tf )a(zp9wg-h5l l6e8 vpvnnected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, tev vt) g-l.(hp zw69lfea8 p5and 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 are connected in parallel to q2uynu4hb0l +a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 di0qy ubu4 lh+2nssipates 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 the xwo d0o4gm*wnwjt qk5x.:7+ymaximum value of the 0 j+kw: gq7xw.*oto4 xmy5 dnwcurrent 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 designed to operate at 12b6vp 5u ,f1 h-0jmckoo0 vofbj5v1k m6o,0hcu -o plts?

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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 dissipating 3 (7x6sikkp7iq 6 watts of powp6 ( ksx7qi7iker?

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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 tc3e ) y2 ypdf+c;hg0cco press clothes is marked "120 volt, 600 watt.” In normal use, the current in it iscccc f+hy)2y3 0;pge d

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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 resise,dg gwb(1m :htances could NOT be produced by a circuit containing only three idebgg1mh:w e(d,ntical 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 resistors. Which of the following equi3f5gzdp y3 jr*valent resistances CANNOT be produced using allj3 pz 5dg3*ryf 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 ofyhw;e fi-:rg1 different values can be connected together in different configurations. If all three resistors are used in a circuit, how many diffghr ;yf1e:-iwerent 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 connected to a battery, a totaqp)n- /-u0hh*tih gdul power P is dissipated in the circuit. How much total power is dissipated in a circuit ih hh i/d*-u q0gtnu)-pf 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, ha v f-5l icky:(ccq5+hqving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of t- 5ck:q i5chvc(yfql +he 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 isx) lnt ;y,oszs3.l2cn designed such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it s.ln 2) oztlcn x3,s;ywould 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 tcbc, pry37 j5g,e j6anhrough a 4 ohm resistor that is dissipating 36 watts ofyb 7c63 pjgr5na, jec, 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 draj;ua kuv6e oifh 6-hxq*(z (v.ws 13 amperes of current when connected to 120 volts. If the price*qvh;-hj k( ( x.uvzf66a ouei 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 cost to keep a 100W l18ldp;0 h n9gnvpbx m.ightbulb lit continuously for mvb xl;n0gn p p.8hd911 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 39s /*dmgu76zpls ii fa lightbulb results in a power of 24.0 W associated with the bulb. Whichdf3si/* il 7puzm sg69 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 computer rated at 500 watts nexq35d k1y,q in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum ny, qk dexq1n53umber 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 resistors to form a simple circuit /6reaob)u i;i as shown to the right. ue6 iibra)/ ;o
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 fo x 3qu8h:mjla)rm a simple circuit as shown to thel8 j:3xmha)qu 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 batteux mns/9pv*d:io/ uw7 ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram upnmwx/ uo 9:* vsd/7ithe 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 ammewxi() b. whlw :jlj:e4ter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram thewbilwh(x:l:4.j w e)j 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 ideaidpnzw*h9nlua 3c 1hnib2 i r/2q5n; 2l ammeter, a switch and three resistors are connected as shown n32p ir2ui;l hndacin*1zb2/hq95wn . With 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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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 equr9x c8e*a4oj ohg8dy 9ivalent resistance? Assume that all wirge4h odj x9oacr98*8y es 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 resistan vbvsima up-j24-1 oewj-wt +6ce of the circuit shown to the right with resistances js1ov 2mtwj4iapbe -w vu6+--$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 i/e m)fgiiq5z6 e*nc 1sdentical resistors connected in a combination series and parallel circuifq i 15e/z* gn6cm)seit 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 b)bb*;v ufgh a)elow shows five identical resistors connected in a combination series and parallel circuit to a voltage subb vagf)h;* )ource.
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 tbz0;ty+v1kyy8o gw5ohe bulbs are identical. Which bulb will be the 8+wgo zy5 1ky;t0bvyobrightest?


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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 m;usx.v hl5h 3are connected as shown. With the switch open as shown in the diagram the ammeter readsv s;u5xhlh m3. 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 ide9 0rvtqilr es./4jww - x1s4lbal ammeter, a switch and three resistors are connected as shown q 9-i/slwe.14trr4x0jbsl wv. 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 three respvv xl,b3g/ 1 dys(9tpistors are connected as shown. With x3v/9(pvpt b lys1gd,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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