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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 metal resistor coazr:huc; wh 5h9u n.;8 raxul7nnected to tahh chx u7 r8r;5: ul.9aw;uznhe battery. Which one of the following choices best describes the direction 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 resiso1a-mpp idb68ik ls5:v w d9:xtors are connected in parallel, the_________each resistor 89m-vsk p x:la5o6p wiidb :d1is 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 lightbulchit2v) s0 lpz) .nm:ob causes the filament to become white hot, while the larger wires connected to the lightbus)lzc:0 p h t2vnoi.m)lb 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 LEDs. LED is . x(zgu6ehyh,the acronym for which one of the f.e h6,gzxhyu (ollowing 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 area Ag)i;7hyx ji 7; zc,vir. 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 of the new resistivity to the old resistivity of the cylindricj v7ir7) iyzxi,;g ;hcal 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+9 62kebahlu,s 6jaet the diameter and twice the le la,e26kts9u+jab6 h ength 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 diameter and half 7eaqjgr: 7 ,7rf0hqpq the lengthrqa7p :qgf0re 7qj ,7h of wire X. If 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 resistor has length L and radius r. This piecj:-sffgwg 0:og b5qp;e of material is then drawn so that it is a cylinder with new lengf 5w;f0pqosg::jb g-gth 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 brighter light bulbzx2 kr3 u:x yptpy:v/1 *d*nlz. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulbn zylu*3dv ktr:p*x p21y:zx / 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 cylindri59 kakfnsxt p w)ob8*:bkzoou5/3 jbuzv )5*jcal resistors are made of the same material. The length and radiuu*a* 5 wkuvj fkn/t)zb9b5)ok s8 : x53ojpozbs of 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 resistance R, are connected to a battery in th cdpuq ,cr-a13e following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a tc d-qpcr,a 3u1hird 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 tv.*8 a/dus,kef7gz6 me;oqalhe accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 oeqk/e6ugd f;savz * m ola,78.hm. 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*73d6dba mlrx to the right. The three bulbs 1, 2, and 3 - represented as resistors ixm6dd7a3 bl*rn 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 th **b9aj)m n9twbgusj+sg-9 y re right. If the current in all three resistors is equal, which of the following statements must be trtb9gyjsjna+) wm 9r gs* *b9-uue?


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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 reprzxt czw336 5zqesents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cezzcz33 xw6qt5 lls. 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 si :/rm5 xx5unzs20mw immple circuit shown where resin z :mxr2sxuw/i55mm 0stors R1, R2 and R3 are have 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 semluq 8tr spnl oi, mig-(;l-94ries to a battery. Bulb X is brighter 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 represe rpti(8-q- ,iloulgn sm; lm94nts 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 6,fg2h ldw5r1mn3boh s /9 brxthe identified resistor in 5 seconds once the circuit was closed? fbom/19dhbr 635h 2,sxwgrln


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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 t 997vqjydnvm1 he same resistance, which would dissipate thnyjv1q d7m99v e 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 resi/5/yp4yejn n 8e lslw9stor is 1.0 A. What is the power sunje pw yyn/e s8l/9l54pply 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 f k7q3 *13vune xx8qiaa battery. Suppose R1 carries a current of 2.0 A, R2 han*8 qeu7avxk3 3x1i qfs 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 resistors R1, R2 andR3 are coz mqlin,341 mhp0kg3n nnected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Whatk0pqlnh4,m i1m z3n 3g 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 1ovfx.bm5 ,q /(jcy+m-ekb (bi200 watts and 120 volts. What is the maximum va(femqi5- +,vob b mbkxj.cy(/ lue 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 watt lightbulb desi 2av-f;t ko faoz9 vpixb1:)g)gned to operate at 120 voltvb x-9pokf1i:f zag)2)o;vta s?

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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 i(fovf l3 6x0 i7lzn*p4 ohm resistor that is dissipating 36 watts of po(*7 f06linl z3 pixfvower?

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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 voltj kspuqbb2nw/* /j46d , 600 watt.” In normal use, the current dkbs6u jj/q*2pwnb/4 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 c82mbtid)o f ;be produced by a circuit containing only three identical 6Ω 8ct i)mbdo;2f 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 folr8 7kcb .ag2af(hfse:o1* ss tlowing equivalent resistances CANNOT be produced using all three resistorsgas(8k*bh.f a sors:2f17 tec?

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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 in ei 1471t1 xm9sicqiffdifferent configurati 117misx9i fe4ft1c qions. If all three resistors 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 resistor is connected to a battery, a to-yrp22uq v g f28zjq9rtal power P is dissipated in the circuit. How much total power is dissipypfq2rz j rv9282ug- qated 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 an3did cjsh5.e*1b qk jwt k3/tv;2:hqad R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Whi.thc/d v:qqki 53s*keajt d 3bw21h;jch 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 desh9l4vfydm,b1;6x8 ha/ uy qmw igned such that it has a resistance of 12Ω when operating at 120 volts. What is the mi/dh9,waf q ulvymm148h6b y;xnimum 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 curreyai ab sbibg09 3:(m.ynt flows through a 4 ohm resistor that is dissipating 36 wab9 s0 (yibmai3b.ag :ytts 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 cur* qklocuw* xpyj v2:i6-41h nxrent when connected to 120 volts:-qx 4px l 2vikhjn**c6ow1yu. 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 would it cos+bdb: 6+ gnt14efilpm t to keep a 100W lightbulb lit continuou+epmd tl fni16g 4bb:+sly 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 ofj939u7n hs ivx0q d sec)v/5cu 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the followin9vu7 c x0 )qdi9 35csjvu/eshng choices 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 comgxqd e*ps8j:v79vh6cputer 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 can7peg9j6dvq x *s8hcv : 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 fourt-pt8kkhbj,. resistors to form a simple circuit ak th8k tp.,j-bs shown 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 afg td 8 oelxk+2,sei-( simple circuit as sho8le i (ostx2-+, kegdfwn 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 swj(4 w7rzc(v b9exty h0itch and three resistors are connected as shown. With the switch opehj4vczbx(tey 0(w 97rn 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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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 re98ayr*brx m1jo/a3m5p 7gk0umc q iu ;sistors are connected as shown. With the switch open ask9 rg8 rymm7 ou/ ;x*q0acm5 a1jpi3ub shown 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, a switch and three resistors are connrb ,u42synm) bected as shown. With the switch openr,m)bb yn4su 2 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 ran7seg y6tc)i 6xa5e7c88qc h8q d n:iight, what is the equivalent resistance? Assume that all wires e an8 tqdxc7 i)y:7ag8eq5 6 shnc6i8care 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 right with6i t2zjlrri9wq8e7u4k(r :gm resist7 :grur zl6ri4 8mtwj2eq( ik9ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistosy(w au )5)cbgrs connected in a combination series and parallel circuit to a voltage so5w( bgsa)yu)c urce.
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 com.g khf k gi/*w4qai,7mbination serie kga/q,7k4g. wfmih*is 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 ide mum-8 ,+gzcclntical. Which bulb will be the brighteu+clgm8,m- czst?


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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 switchmt094qld*0o j;irgk e hb(x*v8ru0 g b and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere0xrb*i0 d kt0qglu*hb(4je vo9;r 8mgs.
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 resisto z6gd t+1,guio1 :w,4myf9q,pql rxifmv v 8o5rs are connected as shown. With the switch open as shown in the diagram im8 ,vrmu i d1fypgofg6lq,ow 4+ qz,:x1tv59the 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 batte zop a g,s9cgd4/ht*;jry, an ideal ammeter, a switch and three resistors are connected as shown. With the switgphsgdo4z;,*j a/ 9ctch 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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