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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 mfc6k4onb5 lc6g0b5hv* q*kih (8pu dcetal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor a pc6hvbgcdfnou4l 8(h06 bq*kki55 c*nd 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, the___f/p1 z q+b3cik______each resistor is z3 kf+p/qi1cb 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 fs, ejxt1m,rq f4sqgov 1v5.iy.s2c/ightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becau.qv 2i/1sc s1f5q x,.fe j4tmvs r,oygse

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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 repla8hrf,qaoie-n-: k(w c3q b+wjced with LEDs. LED is the acronym for which one o- n-r,oa(qwkw:qf+bh38 jei cf 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 length4c-*b 5a udtkx L and cross-sectional area A. It is to be placed into a circuit, but it first kbca x- 5dt4u*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 mcez6cv/e3bn7n 9qy- b ade of the same material. Wire II has twice the diameter and twice the length of I. If I has resistczyeq6bb7 v nc/n-39eance 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 diameter and hhht : x1sk7.rmalf the length of wire X. If wire X has a resistance of R then wire Y woulsxrt1 7h.hm:k d 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 material 5f dnyj9e)y3pis then drawn so that it is a cylinder with new length 2L. What hae9p jd)y nyf53ppens 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 brighter*fr34pvzcz w79gx i)e:;hana light bulb. He decides to modify the filament. How should the filament of a l3 prfa9n w z*hcx e)vi4:azg;7ightbulb 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 arv5 .ki ahacg (-vf:0 ieh/sb1je made of the same material. The length and radius of-.ba/5vcs hje(0kfv1 i i:agh 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 of rq6n q2- tzmf1jesistance R, are connected to a battery in the fol6f-tm1j nqzq 2lowing 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 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 diagraj1h ,cve5026aoadqrib o4e ik /ql z+1m has internal resistance 10.0 kW and the ammeter has internal res1hqb+0el ,ro i/q2v4jde1aok za 6ic5istance 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 compound circuit shown to the right. The three bulbs 1, 2, kdii 8(4* pzmo3 jvbs7and 3 - represented as resisto ipm i*(4kzjobs 7vd83rs 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 all t7fgp6nno rx1w b kj9),hree resistors is equal, which of the following statement9 kf npj1n),bgw xr67os 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 composbu*jxu pz14 xuhj:fu1za93x5x3 jn, yed of 5 identical light bulbs and 2 flashlight cells. Whix 4jf1:n3 5zjyxu*xu 3hxaj9zuu pb,1 ch 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 followingyy-jaym;5r l13 hbzh2nc:9f 3 *s wlup statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are haby zr5u9 w;lyhn 1ph *y- 3fj:cam2ls3ve 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 bao.esi8wjh5 .z cf /td+ttery. Bulb X is brighter tha+s5d. cif o/zthw8. ejn 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 touz7:4g4h 6ou+fht a che identified resistor in 5 seconds a44fzh: +uugoo7tc6h 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. tpy-0a0qqli*s)iizz1 x xwb6/gwz* resistors in the following simple circuit have the same resistance, which would dissipazqwgi0yt. 1s ) *-wq/6zxazipli 0xb *te 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 r tswa3 8 5j.8vwio2i3ehum1fdiagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V?1r3wo iwvs8uh t32aij8 mfe.5


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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, a;nt 3d stqz38by 4.xho ir lbmmr.e1(2nd 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 dissipates 6.0 W of power. What is the voltam;e(is t 1b2ozr.nqt3mdhl. xr 4y3b8ge 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 ti9edvc9;*q uvo a battery. vdq9;cvei *u9 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 120 vghz90h1 +evxzfnl-w+)t:q6w0y epmz olts. What is the maximum valuemfy :0 6+gpe1l9w he qnt)hwv+xz -z0z of 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 wqgw wp-b0b: a.att lightbulb designed to operate at 120 -a.b:gbqp w0wvolts?

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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 oh,*v idlv 1/tnlm resistor that is dissipating 36 wattv,1/ivntl ld* s of 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 used to press clgze.qutt0,z .othes is marked "120 volt, 600 watt.” In normal use, the currenttqeg.z, 0.ztu 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 resistanc)gnaqoj k .r)i cbfj: )m)b ydph88/h4es could NOT be produced by a circuit containing only three identical 6Ω resistor.d:c4bn)j8 / )af)h qphiry8m )jkbg os?

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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 equival+17 9m zmpngdvw7bn1+6ptiae faid 0 *ent resistances CANNOT be produced us1f 6*+na+1gwm 7ppib a70 itdvm9zedning 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 9r 8e7hsv+u 6bgpxhg8+wb cr3values can be connected together in different configurations. If all three resistors are +bph h9 ec8+rgvgur6b s8 x3w7used 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 ibw, 2 bc1itjklq5:y3st *tg 0ys 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 resistan2 1yq iwtt:yltsbc,bk5g3 0j*ce 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 resist.i rzmi 5+dv: d/h,4qorydop4ors, having resistance R1 and R2, are connected in parallel, the +o/d.d qprzod,m r5:4vy ihi4equivalent 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 thaqtl tdj rr uwaur63rg/j3+:;0t it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would tud +j:a3;6 qrtgtru0 rlrj /3wake 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 dissipat8imk zv5e/ z*aing 36 watts oi8 5 zv*/mzaekf 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 heatw7axw e97u 9tsao/w2ver draws 13 amperes of current when connected to 120 volts. If the99 7oa /extw27wvs uwa 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 would it cost to keep a 100W lightbw5uuqs,+wa; 2h q w)jyulb lit continuously for 1 year at a rateh+,w)wq;2uqy 5wus aj 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 result z3th+yg- :zpqs in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of+h:zt- pqy3 gz 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 ovi9oh k4 9b 9koqw(t4if 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 operakkoh4q wi9o4btv( 9i9ting 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 conne5,0bsn pua; xscted to four resistors to form a simple circuit as shown to the righuas snb5 0;x,pt.
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 uv)b,c )zcwb z .3g3d0*u vcm9*nvlsmrm a simple circuit as sho v)l v.czbm* b,suzd30c*9)mgucwv3n wn 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 swit9ewjio9fv,6 u ch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. u,wv6f eij 9o9
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 ,dazrshui+ 2;and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes2;ud ,+shaz ir.
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 three resizn azqocs)ay) 38ko4 :stors are connected as shown. With the switch open as shown in the dia8n c )azzo4so)k :ayq3gram 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 equi sarcj 5sn16f.valent resistance? Assume that all wires are idealfc njr.6as51s , 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 jh6-d u/oot07saxa/b the right with resistances xd 0huo7-oj6 /s/ taba$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connf8e .)v nunjc)ected in a combination series and parallel circuit to a volt n)vjec n8f.u)age 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 idez-v. 6vgc6semd6pv+b ntical resistors connected in a combination series and parallel circuit dc ge+zmb-6 v66p .vvsto 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(jla-+ 3xwifs /v7admh-d5n i1e 4eti the bulbs are identical. Which bulb will be the brig73f l-was e1/iiaxhj d5iv(mendt-4+htest?


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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 batt8rmsj;,0hfu wery, an ideal ammeter, a switch and three resistors are connected as shown. Wifj u,shr8 w0;mth 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 batteryy ga cuu gwz,,3.j*dqf/64 kbm, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram th 4cdkgq*aj.f3,g,uzw6ymbu /e 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 ide3 w6k.+nsij urx3 wwl(ev6b6 ngu *ct8u8n:y zal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2(lwsuk8jyn* 8rc uw6 ngx .e3z6 itu+vw3b6:n .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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