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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 yde+(iwuj-ok m7 (9aoelectric 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 electric fijuoaymo(7kw 9ied+ -( eld 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_________e0 ucc:qkud;,npx h0 .yach resistor is the sa0yc;c :.uuqk, np0xdhme.

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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 filabvv.jkh3r /6 yment wire of a lightbulb causes the filament to become white hot, v3.jr/hv 6kbywhile 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 replaced with LE18 bzy4(+igdwye vm7sDs. LED is the acronym for which o gsby4(71+y8m zdewvine 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 resistor has length L and cross-sectional f:6s parby8szk:sy y:+ ,iij)area A. It is to be placed into a circuit, but it first must be cut in half so thatik,jsa yy8s6r:) yi:zs fb:p+ 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 material. Wire II has twice the d79qs*o1bskie iamete 9*1sqeisk o7br and twice 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 enjsk,vmv2 k;r ;. r;ymaterial but has twice the diameter and half the length of wire X. If wire X has a resistance krs;em ;2.r;nv,v kyjof 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 ecrj kd q( xdjrb:nkn+li9y *44,(rs962 ch tmmaterial yl , q6ermn4jc2ixkr(bh r4dkd(*sjcn 9t+ :9 is then drawn so that it is a cylinder with new 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 wants to make a 4 zrad3b.r uy2 go:p0 qtzu-0pbrighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce p0q.- :tr4z2ragy0z upu3db o 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 resistom l/f,b4 vf4h6pau 0kvrs are made of the same material. The length and radius hb60 k4 ,mff4l/uvvapof 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 qu-vh-zq1q523wrf r i 9 7vtlbof resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combinatiovz7w23 bv91hirfl5- qtqu r- qn 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 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 resistanzxm3 vkan-n 6 *iyfe):ce 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading isn6a)y-nev: m3fk xzi* 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. T3rk7fi iazh ody5-o5g kao in(0q4os(*l*p 2q he three bulbs 1, 2, and 3 - repre7aoo l42i(kzo(05i g sn*ahkr35f qdyiq*o-p sented 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 at the right. If the current in alll9qi4 13avmwq three resistors is equal, which of the following statements must be true? mqw 4al3qiv91


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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 circuim/msm,vdm-o -(xiv :s t composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bs- -sv mm(md:mvo ,/ixulbs)
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 folr0*,: kd )eo-r,r9ldqoks ap glowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are hord,-9g rq):p0 *lsorkd,e kaave 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 lightbulbe/3b4jt ib5oo3m nh im85 uk;ss X andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are cbsuo3tej/i53n i;8 b4mokhm5onnected 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 iden uev) y4r9 fljg7+l)cttified resistor in 5 seconds once the circu)9l cu)y+7e4 vjtg flrit 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 have 0gt1cb*sz3m-xa d vj7the same resistance, which would dissipate the greatestcvjzx d1m g70*-3tbsa 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 circuit diagram, the current through the 6.0 Ω resckz uwn8nkp40u+5somd8 a73 iistor is 1.0 Apoma 78 kd+i4wuk03n5 nu csz8. 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 resistoit/9qr.5xdj: rfw- ff rs R1, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 diss5rdf. it-9/fq:xf jwripates 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 resisopdoi 7jr g /+wg7nu9,tors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6nw9po /7 ,+goigjdru 7 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 imya, bz)7vp-cs the maximum value of the current under these conditionpbzyav) ,-7c ms?

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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 wattyjn67q0pj1fwv :ub7 w lightbulb designed to operate at 120 volts0wy7 fwb671j pjqvun:?

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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 resistoaocy-/iqw0 b4 r that is dissipating 36 watts of powy-qa4iobc/0 wer?

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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 ateakza(x1q*rbisku71)6 ( dvolt, 600 watt.” In normal use,(qru1a7ad(xiabkk) ts*z16 e 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 resrt5 wjt0xip 32istances could NOT be produced by a circuit conxtrj p3i2t05 wtaining only three 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 resistors. Which of the z 8ft+3 2kvnq)l cgff2j fw;,ifollowing equivalent 2w3+f ;kn)qg ci tzfv8jfl,f2resistances 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 tokpfb4k.it .1 qc0g 3gugether in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be pro cqkb..34fp0gk1t ug iduced?

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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 to:k6 y 4oabx88h .cad p9hp9drca7dlh0tal power P is dissipated in the circuit. How much total power is dissib ophkd8ca9 h.ah8 cr74xd6l pdy: a90pated 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 resistance R1 and R2, are connecq3-l; b6qnvmtfc r u-(ted in parallel, the bc6r -qq( v t-nuf3;mlequivalent resistance of the combination is 5Ω . Which of the 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 is designed such that it k (bbqor-32sihas a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.43 b (i2-kqbros5 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 current1c zn,g; f rhcxzd*c7( flows through a 4 ohm resistor that is dissipating 36 wattfgxc (,rh;nz*zcd71c s 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 amperes of current when connectedr*wa ,pw4r lh:xu kd vuf*27f1 to 120 volts. If the price of electricity id f12, 7pu v *ahwrf4r:ukw*xls $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 iz1sukz v+,. qat cost to keep a 100W lightbulb lit continuously for 1 year , sk uq1az.+zvat 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 sq ipk/wm r l-h* b).bov1pt00d)gw2w6+uxlv in a power of 24.0 W associated with the bulb. Which one of the following ch*x.kl mulw6 0v-2/ir)wp 10g sqo+tphbvwbd)oices 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 ic 1uq48fg1as 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 computers can c 1gau148fiqs 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 ;f j,sdc6skikt4 z( 5ay:p1ajsimple circuit as shown to the k 5di:4ysjtasa(f j1c6zk,p;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 resistors to form a simple 8((h:*jjxkmd( qu dw i/hp,rl circuit as shown to ir(j((qmx pkljhwud,8 h/ d*: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 ammete zd1bq.e p6dl7o8i7pc r, a switch and three resistors are connected as shown. With the switch open as shown in the q6o7l d 1p7b. z8dpeicdiagram 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 resistors z+o iy9yd 6e, uljsn/)are connected as shown. With the switch open as show j ,ozy+6)9/idnleuysn 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, avt u.5( u/vu:nj9 zzaon ideal ammeter, a switch and three resistors are connected as shown. u/(:zjavuovu5.9tznWith 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 bd)zxrx811: 2+cxyq wusj 7vv zup(;tthe equivalent resistance? Assume2x7xcjx;bv+zt pvr8q1dy):1 z u uws( that 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 rigqvbe (xlda*8z,tht.+ lt6m d6fd0+ lsht with resistan,xlht( qlt*z +8660 dlesd.f v+tm bdaces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 bfl h8v1 9d:soek8uex/elow shows five identical resistors connected in a combination series and parallel circuit to a9/s8u :ko1vd efleh 8x 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 idfmqhb(-:6zaxmr g sk-; 63wyhentical resistors connected in a combination seriesf 3;a g-sxy6-b kh mrqwh6(z:m 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 diagram, all of the bulbs are identical. Which )ibu(m0ydiod3ul s8;bulb will be the;8uiddyo3s(i l)0 u bm 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 ammeirmn1c*y1 13ao7josv4 kzxe cf .x62bter, a switch and three resistors are connected as shown. With the switch open as shxb2e 1voms37a4 1j .nfr6ik *cxczyo1own 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, -yn cg +rkwh) el.z,x9an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in c- nz).k e+yrwhl,xg 9the 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 resistors arnifv *hehc-; 9 )nohu:e connected as shown. With the switch open as shown in the diagram the ammeter r c e*nfi ovh9hu;:h)-neads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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