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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 elec/434tqozs ,nf.uea 4f tge-mktric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flo u4eo,zfe4ntt af3q/ -g.s4mkw 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 parallr b8;w1(cq+v30lw t/ low spyhel, the_________each resis y to;cbwl ql hp31+w80sr(vw/tor 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 lightbulfh qe4 .j gqin;c*7w0xb causes the filament to become white hot, 07;ifgc.*qhewj q xn4while 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 replaced with LErd3el g3+zpa4iy0ju; Ds. LED is the acronizpd lg;jeu34 0+y3arym for which one of 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 length L and cross-section8of d2, jyc 47hiwr2qkal area A. It is to be p y8 274o,cihdq2 wjrkflaced 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 of the sawf ..p o(ba2ectc,e2cme material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has re 2t(pow .c ea,b2efcc.sistance

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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 twicn2ah)g k m3vd u,h/c+0rh+oxo e the diameter and half the length of wire X. If wire X has a resistance of R then odxmvk orgucn ha/2,+ )+h3 h0wire 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 ki l.,*kx (aspresistor 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 the resistance of this material because of this process?pi. x* ,lksk(a

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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 Edmf*+cw;4a 8gax35p (vfq x jxv,zpde3ison wants to make a brighter light bulb. He decides to modify the filament. How shoulm (v; gxqd 3pwc+4j8fa zxapf5xev,3 *d the filament of a lightbulb 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 are made of the saazxhza, gylzel8t7 +b:m;.1v 9- e.kt3mslbd me material. The length and radius of eacs.z h. mya+b ez ,:bexl7avmzdk tt-81ll9g3;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, eacht 2 /6;kg8rilxb aitz0iwmx h 7+a0l9h of resistance 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 taz lw8tx2bi 6milk0t ;a+g xh0ir/79ho 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 accompanying0j5 ,e cyovm;l circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading i;m,0oy ljec v5s 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 t:kdl ,( w7ye gb/ot0sehree bulbs 1, 2, and 3 - represek 7bt:d(sl,y0g w /eeonted 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 ele6ardl kn4v/)ectrical circuit at the right. If the current in all thr dra n4/l)vke6ee resistors 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 electric circuit ctbt1i + iugr),ac(icss.x 5n4omposed of 5 identical light bulbs and 2 flashlight cells1at5 xricigs,(b. )tu4c +nis. 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 follj-cnvd2u sg 78owing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are havns d7j8g-v2uce 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 t)nfu4uu4 uwi3: sm x /2lm:cyto 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 represents what 3wu i4:ufyx2t u l/:)mn cm4suis 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 could8wazowfwb82s-b) ( wa /dr6h ombs will pass through the identified resistor in 5 seconds once the circuit was w/zbbo a8sd wwh8d ( 2r6)-fawclosed?


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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 cirhqy f ;y 0q -e):ki2,b+yh)ynrbu clp9cuit have the same resistance, which would dipf2 u+h); ,qb0 9yq-yc)lkhyr bye: nissipate 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 (l)2l vh-l ezlresistor is 1.0 A. What is thhl)v( -elzl2 le 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 conn5e6h :mo-ei84y3 cim ibqvndnjvr5*; ected in series to a battery. Suppose R1 carries rmnmo5*e5ihd v843:cbi6; vy eqj- nia 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 differenlew ci+/w h6d;t resistors 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 wiw +;d c6l/ehthe 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 v ,f ;luqk*idf9h o3qgvhu3 2u,olts. What is the maximum u hf2gh9,qul;3k*uo3dv,qi f value 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 designed to opedg r) p-,w9;7md 6tiotpclp o7wb/j.zrate at 120 vor d7p-jdlgw7cop.6w;/ zitt9,bomp ) lts?

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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 ohm resistokqfp hm9x5bge z /(70gr that is dissipating 36 watts e7gz9b fq/xhp0mg(k5 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 clothes is marked "120 volt, 600 watt.” z 9o,ye:p30tswddc ,p i3ua7jcz6ov d(*p9 l tIn normal use, 3z*pdwtza7 :cc3 pdouey l t9jd9i0vos(p ,6, the current 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 etnrn4x*70s6 geob5fvj e a 6 vqcb216following resistances could NOT be produced by a circuit containing only 0ngb66x e veq eboa2 t7j*c51nsvr46fthree 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 of the follmd w7t0u;yziqt6a )u 2owing equivalent resistances CANNOT be produc t0uw2m)q6 z7 iuyt;aded 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 .*2bpp/t d128 otkeuu xec7p scan be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistas toutxk28 *p2b1 7/ ppeud.ecnce 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 connectez8j rijn*p eq c.x+z-,d to a battery, a total power P is dissipated in the circuit. How much total power is dissipatpjni- zz .ejrqc+x ,8*ed 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 and R2, are connected in- /ra fhg.g7p+7ivkc o parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistana+pi7k.7o -hf g cv/rgces 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 when opera:90 yaiai oydq lu5 .63bne.ssting at 120 volts. What is the minimum amoun3ylq 5e s:sai0ob6y9un.i ad. t 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 tat,m,5 ) i k,vlakmn:yhat is dissipating 36 watts ol,y miak,mav)k5 tn,: f 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 current95gusg zy)6 6un m,t9vdnpmq+ when connected to 120 volts. If the price of electricign mup m,qtuz 669 dsgn9v+y5)ty 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 m ;jxlt9tl8jl ;uch would it cost to keep a 100W lightbulb lit continuously for 1 year at a r ;tjjl;lx9lt8 ate 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 thrgge t6z2q80,a(kl pwxough a lightbulb results in a power of 24.0 W associated with the bulg (qt8e2xzwk6gla0 ,pb. Which one of the following 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 computer rated at 500 wattsp c9+mi8l nis+ in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 i+8 l+is9p mncampere 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 resistors to form a simple circ i9:uz0 w )./ogrgressuit as se0 rui:s/)zg9.rsogwhown 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 forn u2adh 6w*i*rm a simple circuit as shown toh w26a*n ru*id 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 ap) ,s4)lm,gphx wofo2nd three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amp4o)2 ) ,swoxghp flm,peres.
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, 8og5;cewprcct: impc); vi *-mya4 5 ean ideal ammeter, a switch and three resistors are connected as shown. Witopr c*-8 :pc5ciagw;m4m )yve5;ct eih the switch open as 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 aml bel075q9d+,8w z n1 vnh.txjb0 .p m3ksqpaymeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rehq,x1e .vb .tbpsyp 8a9kqn3 0m+d7 nlwz j05lads 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 equivalent resistance* ) l1msey-mfy? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resist*f1)ms myyl-e ance 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 tqb1tsfiyo7k+0t e-8resistance of the circuit shown to the right with resistances8e+yf7 otik 1t-q0stb $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combinatd0j-w pn 5spcw7j7j,*ohnkw2r* 4k xaion series and parallxh7nkajn-7k4 os, 5 w* cp*j0 wpwd2rjel 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 coedp0lt lu7lf88c.sj :2dhd j10 n 3yownnected in a combination series and parallel circuit to a voltajs30fwlo 1 y.nlel7h0 cd8tdp:28jud ge 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, allkgzh(q;pew/o5:76 q n u sd4kw of the bulbs are identical. Which bulb will be the brig :7 5qohk/k; 4zeqdu6npw (swghtest?


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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 c4o7k0.ogot yt onnected as shown. Wit0t4 t.oogok7yh 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 sewj+l e(cr2-1asj1f2qvp . gpwitch and three resistors are connected as shown. With the switch open as shown in the diagram the amm2g a1qj2pveew- c +(1sl p.frjeter 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 swsgo rmvo o2 u0/*:(ctxitch and three resistors are connectm (2vrtuo g/o:x*cs0o ed as 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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