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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, 3;r7zgttq*m7bxh f7( 78ru4gq3kihl i buy,e an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of m4gri 7,(7qrqx3tib eb ulh *8tkuy3f 7;z 7hgelectron 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 connectf(n hr,a: spplhj4*-ked in parallel, the_________each resistorlj4k,a*n -p :fp(hrhs 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 8aj8l(h.4kr mg v:a +urb3vjzthe thin filament wire of a lightbulb causes the filament to become white hot, while thvgarjz3.vj8l: 4 m+u ba(khr8 e 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 lighd6g kl.us z4b/ogg4lqw9xh) . ts are being replaced with LEDs. LED is the acronym for which one of the following choices9 w6qg sh).. dok ull4ggx/4zb?

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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 cuxhw zj 9k(4djsm7t +8ross-sectional area A. It is tj+hu wdm4sjtk( 7 8xz9o 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 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 of0;yy,az0fzqwr i-gw 79:s abq the same material. Wire II has twice the diameter and twice the length of I. If I has resistawg0afs0 -rzq9:7i y,q;ywb zance 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 twice the diameterka g,xes*j5s e5 q7-7 aqot 81zsx)pfr and half the length of wire X. qztaxp e57- sgsj8kqf*rxo1 7a),s5eIf 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 resisx/5*fy;sm obzk2 +ex *kv: 8 pgwbv2tqtor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to thkv*b 2;p 2:e+wtxys8 gkxzf5*v/qob me 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 bulbaev *2ztg/bqf rc x58(. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the liavt e(rz fq*8bc/x25gghtbulb 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 are made of the same mate1a 1 qlz8u3rihrial. The length and radius of each reuhizlr3qa 1 18sistor 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 of resistance R, are connected to a battery in the s/lwpa :xmpu 1nl/: f)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 resip1u /: ln)x/lpfas:wmstors 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 resiv+5nh ch/c.1 o. hrkyistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is.h5hk.c+rno vci1 y/h 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 r o-phn iot(7,night. The three bulbs 1, 2, and 3 o 7,inton p(h-- represented 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 el, sx7hv80f pupectrical circuit at the right. If the current in all three rex 7vp0h8 spuf,sistors 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 ele5 3tdhvacq mhd3pk 9. wvc71b.;ooea9ctric circuit composed of 5 identical light bulbs and 2 flashlight cbqp3o1chm97..k ad 3tcv deaow;h 95vells. 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 followin0vk* qma9wg)nq pi 2m7g statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistwi*0 2a m9gv)npkm q7qances?


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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. Bulb X is brr8-5u02cji nye v8c 6ymouav, ighter than bulb 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?50c2,ei6- a 8vcymuu j yvorn8


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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 resistor in 6e2 ;g qh-ncx(0pttji 5 seconds once the circuic eing6-tp20hj;(xt qt 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 the zgtk ,o tcnod,9p9. ,esame resistat9epd, o9.c gt,zo n,knce, 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 circuit diagram, the current through sr,eca/:td/ p+(w lopthe 6.0 Ω resistor is 1.0 A. Whcwdrla//p+ p ,et:o(sat 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 a 3.hmphx ee3*dre connected in series to a battery. Suppose 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* p3. xmhdeh3e?

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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 t 4t)xbqx 0;t n:ovzdk6 :mlsk*o a battery. Suppose R1 hkm*x tq) z :xo06b4 dvn;stlk:as 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 rat h33wpa1nru(oed 1200 watts and 120 volts. What is the maximum value of the p 3( noha1w3rucurrent 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 lccd(0fp d2)r lightbulb designed to operate at 120 vol2cc d r0dfpl)(ts?

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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 througemmrga ,:f 7,yh a 4 ohm resistor that is dissipating 36 watts of po e mf:,mg7y,rawer?

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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 pre0t,miw 3srt o+dm2 gb0ss clothes is marked "120 volt, 600 watt.” In normal use, the current in itiwts2 00gmb+rotd m,3 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 following3wtngy0e6 .f gc v;2cx resistances could NOT be produced by a circuit containingyn.e0f2tcgwgv3cx6; 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 )dxrvr-u5 h8 3m/7 7 crftsqnnof the following equivalent resistances CANNOT be produced using un/7fn s7)vx qdhr rm358 rt-call 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 toge 1hkh.tw /oo*rther in different configurations. If all three resish*hw1. rokto/ tors 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 bd,k+7dvrgt4-ydci 1 resistor is connected 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 battikd4vy+ , c7 dbd-rt1gery 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 R4slnx-jmp1 k3zli. ij(+oef- 1yjqzibo:91 g 2, are connected in parallel, the equivalent resistance of the combinjg1-:ljz i-fn9i4z+o pjyk x 1se3oib1 q.(lmation 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 de56g,*u qnnm fwsigned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would tn56un *mw,gqf ake 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 currenpd6c dpy/8wire77s 2 sy5ka3 dt flows through a 4 ohm resistor that is dissipating 36 watts yprkcwa s6s/epd 7y27i d53d8of 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 vo/y eqhovycx;j - c27+elts. If the price of elect+;c7yoyeqh / -2cxevjricity 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 llp++/h j jag*pightbulb lit continuously p *ap+ j/ghjl+for 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 a lightbulb resultih )wvh h1n48imq9v gj+nb 2(ds in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resmv1+2d(nh hn 4jg9hi)iq wbv8 istance 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 qsq4gh ;p-ur+a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit prqh-;+4prgqu sotected 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 resistorxwprst;;,n,i p;mdc8 .djr r2s to form a simple circuit as shord2 x; pi.;;8sprjr w,d,tmn cwn 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 simzbi+fdg5gb8 4e*(3 j;xcfj btple circuit as df; 4 i( jbeb3zbj *5gcgxft8+shown 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 battery, an ideal ammeterxvrl7c7m 7 wk3n8j4p p* ee4zb, a switch and three resistors are connected as shown. With the switch open as shown in thp78rjxc7 np m4wek4*e7lvbz3e 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, an ideal ammeter, a switch and thoic.4rfrz47zdq woo 2jjv-+ +iv17oo ree resistors are connected as shown. With the switch open as shown in the rfzjrqwd1ov+ izvooco.o24+7 j-7 4idiagram 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 and thtrp9h( xa)uw (7tfdq,ree resistors are connected as shown. With the switch open as shown in the diagram the ammeter f( tu(xdwq)rha p,79 treads 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 equiva1ia lv7pg/m2wwo8 crgz *;t6f lent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors hav a8vcot2fr ;6 mgw*ilzg7/w1pe 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 ury9eanzmk)x0.y* .v shown to the right with resista0z.n y9*y vm rku).xeances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 iqpf4ro2z), b c o-2ktl 86ghptdentical resistors connected in a combination series and parallel circuit to a voltage source.,g26tkp2o h o)t8q zlb4f-r pc
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 bev7)rgk km )y8kco 0levo 0t;l:low shows five identical resistors connected in a combination series and parallel circuit to a voltakm r 0;o:8v7clv)ty 0loekk )gge 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 dia5b lzu2wxfs)3i z) l4agram, all of the bulbs are identical. Which bulb will be theuxwa3lfz5 ))bl2i z s4 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 ammeter, a switch and three resistors are co(kw*fhw(gnh j98x lr3sz -dn8nnected as shown. With the switch open as shown in the diagram the ammeter 9gwzjs*hh8 ( d3rwlnf(k-8nxreads 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 three resist5-njn dt: jghpyq+-z2ors are connected as shown. With the switch open as shown in the diagram the ammjqy:j 5-ht+ -2nzpgn deter 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 switch3 3ceq1(f7uovhm;t qo and three resistors are connected as shown. With the switch open ast73o q(mc1ou3vhf qe ; 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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    总分:50分 及格:30分 时间:不限时
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