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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 s7)axaym/op 9z hown, 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 directio a7x)9yp/amozn 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_uy1eo z.v10szn5 zx*d mz1npk *.dh7h________each resistord0ksh*.z u5dz1 v1y zen.pn* 7 xmohz1 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 l+u+ux-nwin3a zl5 0weightbulb causes the filament to become white houi+5uwx+nz30a lwn-e t, 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 rvfi e.gxp/81dt0(1 q rixw g*geplaced with LEDs. LED is the acronym for which one of the followinv ifp/rx 8eq1g(di.xw*gt g01g 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 rep+t;y; xaxxu49 z8nlt sistor 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. npt;a 4 8ux x;tz+x9lyWhat 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 materialr5pj w vq t1p1(19esob8i s8wp. Wire II has twice the diameter and twice the length of Iqipwbs rt1 pj5o9(w se1pv881. 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 b19tca0 f lg1a y1r*amtwice the diameter and half the length of wire X. If wire X has a resistance of m101lr 1ty*a9g cfa abR 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 piecli ++li5qqg 7de of material is then drawn so that it is a cylinder with new length 2L. What happens to+glqd75ql +ii 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 brighter light bulb. He dec:yg;tq6r(jqx1wd r *ongrh 1 /:fyqj(ides to modify the filament. How should the filament of a lightbulb be modified in order to make 1g(y*t j/1jqrwoyx rd6rf:ngq;(qh :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 resistor5 /5cshhz chh(s are made of the same material. The length and radius of each resistor z 5/cs( h5hhchis:
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 a batteryip o-df,f 1ot* 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 ind*,-opfo 1 ift 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 di*s lqa6,ub n w09gooyya)zo wfp8)q; +agram has internal resistance 10.0 kW and the ammeter has internal resistance 25.saw gp;w9 +0l6,ao yby*unq)8 z o)foq0 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 circta7p)xszcgbc72/k p7w4.p mkuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagr.7kx p7)m/gpzc 4b2s tpaw 7kcam
- 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 electncbzy -nj3iz ;p-o3 6drical circuit at the right. If the current in all three resistors is equal, which of the following statemen6;py -nbnoi3z- d3czj ts 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 ofs,hqj24w 6 tanai0l0x 5 identical light bulbs and 2 flashlight cells. Which bul0s,wh ix40n2a6l jt aqb (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 fo33xfi vuwv 66wllowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal reiux6v6w3w fv3 sistances?


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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 battery.-txux4ev vnn4- -o7 k xyrx(ilvj 1+,t Bulb X is brighter than bulb Y. Assume all circuit elny+ioxx(7 ,r1vtk-v n el-4jxxt v4u-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 wsh*3n p69d kslill pass through the identified resistor in 5 seconds n3ls*d hp9sk 6once 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 have th4+d tli :z x-glizv ;rz)2qd4xe same resistance, which would dissipate the greates iq -4d+lgizvrt2:dz4lx z ;)xt 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 th*kk :rsej;u.rrough the 6.0 Ω resistor is 1.0 A. r .kj*rk eu:s;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, and44uywz 3kxhqtl -rx;4 R3 are connected in series to a battery. Suppx3;z ywq4r44 k-utx lhose 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 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 resist0bogbg.nusda. ve 2n yu268m)ors R1, R2 andR3 are connected in parallel to a bat au.. ngnbuvm )bsg8oy2d26 0etery. Suppose R1 has 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 120r b4g*nza;tmpdo; 2u4lj c n-; volts. What is the maximum value pd;j4n-l;;n4b zm2 *r t agoucof 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 resistaz ccy7j+ p8d2pj+9ydqnce of a 60 watt lightbulb designed to operate at 120 volts+cp2p+yd 8zdcqjy7j9 ?

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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 throug/badx/beid5 hr*e ,bz8z/5rvafjg8 ;h a 4 ohm resistor that is dissipating 36 watts of powzf5,b/r*gi8aaz / dr ebjh 5b ;ve/d8xer?

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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 tj )a0c8 /o kxi)r(zgmro press clothes is marked "120 volt, 600 watt.” In normal use, the c /ax 8)c)(j0izgkrmor urrent 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 resistances could NOT be produced by a chi69) a xa+cp* ac7t.b;za tr x;yi:yvircuit containing only three identical 6Ω yh).xa zi+ trab9 a:*; 6yaciptv;xc7resistors?

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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 fol;u/m o zfft68drj 5i/19ezlpt rz3y( nlowing equivalent resistances CANfe9tyl8zp m5 /uzzr t/fijo;3 d6n( r1NOT 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 of5f a1h0bu 0vddp1 hbn 8zmcw9/ different values can be connected together in different configurations. If all three resistors are used in a circuit, how manm h00h 18p1cuf5b b wvd9d/azny 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 cope2jn1 j8p e.teb2fe: nnected 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 ofppej b.2 enef8e1: 2tj 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 hduxgj k o*wv p1-/u-)5au ;dpgmlc)6R1 and R2, are connected in parallel, the ugck) xd 5)lg*pa6-hw 1ju-vp;udom /equivalent 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 has a resistance of 1hbbsw ;uf 0s 80i;ysy604z/fk*sgl sr2Ω when operating at 120 volts. What is the minimum amount of time that it would take to w*04izysl0f ; y08h;sbwfk/ssr6 ugb sarm 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 resi:sq)x g z34gkfstor that is dissipating 36 watts of power?x:3s k)zgqf4 g

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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 heatnu2l7cq 9 ;spker draws 13 amperes of current when connected to 120 volts.sp 7;9qlcuk2 n If the 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 y ncl47 yu m6dk8todsw:/ 3x:ewould it cost to keep a 100W lightbulb lit continuously for 1 year at a rate ofy7mo t4l:wn/d8desyk6 :uxc3 $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 in a power of 24wevq7bnc 1n:.gw3i ujj0dm68 .0 W associated with the bulb. Which one of the following choices best represents the resistwbu. q n1w70ij:e8nv3c6djg mance 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 fam ruh 7i89d2 c)ztj-a/wzsd hy7ily of six owns a computer 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 computers can be opera-r77iu8ts h9 z2w dy/) zcjdhating 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 batterz8 jofv1 z1pmv581ioly is connected to four resistors to form a simple circuit as sho8vm v z 11of5zo1lij8pwn 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 connected to four resistors to form a simnm 5sw6o-8ihlqqyr fzp 4 7;m3ple circuit as -p z fqmh5iqs3y8lowr7 6m;4nshown 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 batteh/+ f3kab*ewrry, 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 amperer+a3wfk /b*he s.
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 resistorsomc6qd8s pi3. 9n:v)f7njol p are connected as shown. With the switch open as shown in t)j 7n8lvcn96. opm3 fsidp qo:he 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 k/+htj0g bm2iswitch and three resistors are connected as shown. With the switch open as shown it k+ /bjmhg0i2n 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,g((1dw a;ly y1h9qc 6jfnjmf. what is the equivalent resistance? Assume that all wires are ideal, the battery has no inte ny1; g.f(mjcf69dlhywqj(a 1rnal 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 resisu-8k, hw 8w(/mev fm,v84 o; puxogazatance of the circuit shown to the right with resistanfo8xa -,a8wvm h vmzou ;(/8,p guwe4kces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connected in a combinatij, /8v /ir.mgi9x* nb2yb uzeeon sei9n *er2 ,vb bjg/8myxi./euzries and parallel circuit 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 below shows five identical resistors connected in a .mtd7 +cnf/hf2tre -lcombination series a mt-l 7tf.2r+dchn/ fend 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, alp +6d5vd ;g5lg. icl/6omlzp;q jpl t;l of the bulbs are identical. Which bulb will be the brighmg/dplvc;55 z.6pq jp;+tligldo6l; test?


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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 resistorsn rk-7vq:(y) s h7gkd zi-b2ys3d0kbi are connected as shown. With the switch open as shown in the diagranvq dgdhk r:b zik()07- s 2-ik7bsyy3m 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-n.sepf3qct xr 7::y*g /pqru *uiw8n , a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2eniu r cr-pq sq:: /*pwtf7y8 xug*3.n.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 swi qatkw va3+7dl;x2t 30gdg ma/tch and three resistors are connected as shown. With the switch open as k gt7 q/x0avtal2gawd3md 3+; 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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