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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 curr0 mbwni+gk/+ ment exists in the metal resistor connected to the battery. Which one of the following choices best describes the directiom i+/k+bgn0wm n 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, (,(yp iemyy;nwe 54m1opx uc,the_________each resistor is the sy1oe(me i,,n cp;u xm( 54ypywame.

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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 thi,ge8tjsavy/z 2 d6m52be+a tzn filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happezd,+at2tb6es2/gv zayem 8 j5ns 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 beiu jggr75or2rhx9 80fnk+ vr:y ng replaced with LEDs. LED is the acronym for which one of the following rxnu:oy5+ 2g7 0v gr hj98rrkfchoices?

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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 lengtue6u kkd+m( x4fnk,8kuv2 mk0h 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 o8m+kmf u(2nkukxk6 dv4 u0,ekf 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 madez ygdb8t;sq2 3 of the same material. Wire II has twice the dia 8sd3; ygqzb2tmeter 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 material but has twice the:p.w4xi8igl5oyg- w23p q em c diameter and half the length of wire X. If wire X has a rlyxi c4qgp g 5om3p.:i8e-ww2esistance 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. Thisz 0;j+r6:qhkab j(jrf piece of material is then drawn so that it is a cyli(a r:h6b ;jj0rf +qjkznder 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 Edisl/4dq a( ej*kion wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in orj4kq d* /(aielder 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 are ma/70p r-i . 5wwuexfnzxde of the same material. The length and radius of eac5xzpfxreu/nw w0 7.-i h 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 of resi7*++ g :kuyte jm2kan.tu,i.lj*kxlostance R, are connected to 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 fourth resistor.” What is the equivalent resistance of t ga ulk j+jyn,kt.xte:2o+luk*i *.m7his 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 diag vgn 5( nbtdrxy(t+()vram has internal resistance 10.0 kW and the ammeter has internal resistance 2n5 td)y t bxg(+(nvv(r5.0 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 to the right. The threl wx 0+ 2lzbd8wmx-7toe bulbs 1, 2, and 3 - represe- wt87zwlm+xlo2 bx 0dnted 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 cur5r,me bp4 9bhnrent in all three resistors is equal, which of the fol9b ,m5 re4pnhblowing 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 circui2+k3:.wujha7 swdvha* j-rwqt composed of 5 identical light bulbs a.h*2w uv-a+ jrqj:w3wskh7 d and 2 flashlight 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 following statements is NOT true concerning the simp5 hsvjd i7t)q16rz 1tnle circuit shown where resistors R1, R2 and R3 are have equal resistancjiq61) vr 1std57nzht es?


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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 connectl22x 2*d; 8slrb qnrxbed in series to a battery. Bulb X is brighter thqrn; b2*lsbl 82 rxd2xan 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?


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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 re2cjgu+(w8w yyx. as:h sistor in 5 secosag y2wxc+y(h w :ju.8nds 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 follo)z *2wiid1 td8.yw wxuwing simple circuit have the same resi2dw i zu*iwwd8t 1.yx)stance, 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 the 6.0 Ω resijigvts+4- sl,x; -dnbl4 v1p nstor is 1.0 A. 4ll4d ,-ivj1-ps ns xngt v+b;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 connected in series to a battek 1pikn+s.s(ery. 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 i kesi(1+.ksp ns 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 resistor3 /a-yh*;xgufzlnf)c9 kct+ ds R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in R-cnx;*flh )3+fa/gcydu zt k9 3?

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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. W1rr/ zpkupkq/qd0. x 5hat is the maximum value o5z/pxk/ 0 .1pqdrkqurf 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 resistance of a 60 watt lightbulb dearqff(tt 2jq.jh,7 u /wh (3a(yi1 yw/1s epzhsigned to operate at 120 volthy jhwr( 1,s(ytqzu qi21ap( tw/j3.fa/ h7efs?

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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 ad ckgj,yl czaux7(d2oew 3o7):xy0 e4 4 ohm resistor that is dissipating 36 watts o,zw(d xo3y:4x gc e j2kdoeylu07a7)cf 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 opp4 0x*igjlhshs 2,;zqb( , mused to press clothes is marked "120 volt, 600 watt.” In normal use, the curren,p(l2z0q bgp ;jmhhss4xi,o*t 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 b0+)f w0xo+o- uzvcegoe produced by a circuit containing only three idenuzxfo) +-go0ec0ovw+ tical 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 ffed ud0e71*kl1np)kj+3 7ot3 nx eidthree 1.0 Ω resistors. Which of the following equivalent red t d071e3dupj1 3 i*l)+n nkxf7oekfesistances 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 inr/9e (j7:l.orqo vnhi different configurations. If all three resistors are used(/qlv9:or hje7 i.ron 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 connected to a battery, a total power P is di/01 xzrfjtb ,ossipated in the circuit. How muj/r1t,0 xozbf ch 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.

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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 resist17mof9p *8n u:fyl+w -r7,swgz(lfqm ubvr+ cors, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements aboufw+ lypq 1 n: 7fr+s wl8(z9muo7mrb-u*fv ,cgt 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 12Ω (8 bkusl)m ,fa when operatingau,ms )(bklf8 at 120 volts. What is the minimum amount of time 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 dissipating 36 w -p -gt0znjx7satg0-ntx 7-szp jts 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 k9gu(dtk n/qkjj*, 3acurrent when connected to 120 volts. If the priuk3kgatd jq,n/*( 9 kjce 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 itm 6yvxz,7s0 xmxi;u3r cost to keep a 100W lightbulb lit continuously for 1 year at xy m730vusxrx6i,m z; 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 resultsh,i 91 i1jb0qrnc/fft in a power of 24.0 W associated with the bulb. Which one of the following choices be, 9tj qfhb11/nfr 0iicst 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 q ushduf,/3 nh0fx4 7vwatts in a 120 V circuit. v fsq4d x, n73hhuuf/0If all computers are plugged into a single circuit protected 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 batter5p)tu* d3s2ys3g f-2iwesihkp ;cd 4zy is connected to four resistors to form a simple circuit as shown tiusds)3p*te3dfkwsz2 g ip24-; c5y ho 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 o.qh a7*dar,r5 m mp f2sn0 1yv.aw/glform a simple circuit 10.lm.vr/*a p7 gah na,o2q5 mdwrsyfas 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 ammeter, a switch and thr i*r;c/kcze4zej5/ z eee resistors are connected as shown. With the switch open as shown in the diagck zr*//;ez ezec4j5 iram 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 resistorav d 3jp;6i*oms are connected as shown. With the switch open as s3 6imp*;o adjvhown 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, an ideal ammeter,;y ,jlv+4fhko a switch and three resistors are connected as kjfo;4 +yhv l,shown. 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 t mkoxy 8y bwe+ jrrn74-843eego the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors j 48y 43-re mebg+rywken7xo8 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)b-oj 3hfda*ksd) jg7 shown to the right with res) *jf 7 )sdkhj-gdb3oaistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 gw c6kg (fi0w-3r-pqgfive identical resistors connected in a combination series and parallel circuit3rfwg -wqpg6ic-k g (0 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 cmojy of*43zzj+1l /hqonnected in a combination seof ly1 m+/qjzohz4j3*ries 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 diac ie8cw -,hq3qgram, all of the bulbs are identical. Which bulb will be the brhi3 8,qcqec-w ightest?


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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 battmj c,qn(k5k /y 5ul4flery, an ideal ammeter, a switch and three resistors are connected as shownl, fu j(ml5ky5 k/q4nc. With the switch open as shown 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, an ideal ammeter, a switch and three resistors are cong( nf.zt:v z;u2xl)n mnected as shown. With the switch open as shown in the diagram the ammeter reads fumzvltnx n g)2.:;(z 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 ammetm(dqtlrb4rwe43ah vc6oa6 5 heiz7 :+er, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amewbzr43 + 4mehq o6(avc dirlta h75:6meter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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