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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 reo ywj*67d7j4 rrh*, e:ba-w)mdci h ngsistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the dij*jdg, a r)rwc6:*nde7wh74mb iyh-orection 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 connecte. .ao26x 3p6)hlykezwa u m*uad in parallel, the_________each resistor iykzae*6 x a 6mao hu2p.ul.w)3s 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 lightbulb causes the filame7ws p x9c0u+sant to become whit9sx cs7+awup0 e hot, while 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 wiha0adneu9i+t 1qqgt2*si;v l -ib84 dth LEDs. LED is the acronym for which 4d9la ; d+nisv-qg2bit8tu * 1aeqhi0 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 resi*ihs5nywmo t:wn v 48l3)8zkestor has length L and cross-sectional area A. It is to be placed into a circuit, but it first mus:k3*w8h)ew5m 4n i zs8ovtynlt 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 same material. W022.0gywcyi ww ho ri2ire II has twice the diameter and twice the length of I. If I has resi2 yr2w0wo w02gi i.hcystance 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 anto,lpn* )m fx5d half the length of wire X. If wire X has a resistance of R then wi* p)nlmxf to5,re 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. g bjx. l4fww9/e7-hv,8 flmg qThis piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance ofgfm.f-8/eg47 bw w,jhxl9l qv 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 bu7f l-*tubdc6ko2hf -iyc7 e5 dlb. He decides to modify t7d f *y k7-ulboic2-cdf6het5he filament. How should 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 bbfu8-+yi2 vbr y,u .hresistors are made of the same material. The length and radius of each resistor is: 2+ ub. yfy hvr-,u8bbi
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 co/e6r9ildp3; gh* pnwknnected to a battery in the following way d*6il/ en ;wkp3h9rgp: “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 diagram hasx 41f1tewxf 14m;w jdr internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1. 1;44jdwxf1rmefw t x100 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 z q)esz1)bgx/6 etm n6d.l/mishown to the right. The three bulbs 1, 2, and 3 - represente ix/zn t.)zs)1/e6g6eldmqmb d 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 currents9 m0xsxgwy.fmxf 566 in all three resistors fs6w .6xxmsy 95mxf0 gis 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 composed of 5 iaaqwvs0ns677 3im l5jdentical light bulbs and 2 flaaam57l6j7wi0v3sq s nshlight 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 trunxhs,z6m) l b9pre6 a,e concerning the simple circuit shown where resistors R1, R2 and R3 are ha, h6a)n z 9,6sxepmrblve 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 ao,s b;c c,, *oo-q6fz0ccvg iconnected in series 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 represents what is observedacq6- co*io,sc,bo z v c;g,0f?


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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 idyfl 1a7gugk8,entified resistor in 5 secondy kafgu87 ,lg1s 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 resistormh:nbg8eg(( js in the following simple circuit have the same resistance, which would dime((nj b8g g:hssipate 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 diagram7 xlyav9,tf7v , the current through the 6.0 Ω resistor is 1.0 A. What is thevyfv7t 9a l7,x 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 battery. ke l xsrg6:*,5,un; jw ;:lda pndom:eSuppose R1 carries a current of 2.0 A, R2 has a resistance o;grsx:p;me,u :a*j l6n d d klwe,n:5of 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 connected in parallel g m:zul/0q 3 j5 btevk 9e.xnif,-6knnfl1mo6to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3ox,e -jvknn.:bn3mim9f56q lt/e6z u0l kfg1 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 xu( yub4n1lwx( 2o1hywatts and 120 volts. What is the maximum value of the current under these conditionn12u 1b (oxyxwyh(u4ls?

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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 desa(f3fwl18 bmq:jw p*eigned to operate at 120 vola(wem1fjlqw b* 8pf3: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 t:aii0(jy 4jp d /siwu;hrough a 4 ohm resistor that is dissipating 36 wa4ya0w:jp /is idiuj(;tts 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 wa ih)trglr.e6 i6* g(xntt.” In normal use, th eg.(ii tl6ng*xh rr)6e 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 following resistances could NOT be produced by a cirew+ ,vhu :m:y ly6ae1fcuit containfe +u:hw:yv,1 e 6amlying 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 caiw:j7/fod cp a(()jcbdbj (2y((bxike7d 9three 1.0 Ω resistors. Which of the following equivalent resistances CAN:d b(o ( 9cbi7wkjaaejdi((7 jxcp/d2 b ()fycNOT 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 , :cb pya3 mhj8aui+e/be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total re ib:y3c8m+up/e,j haasistance 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 euh99gd8-dk( yc-l kj to a battery, a total power P is dissipated in the circui 8yd- (eu9k kh9dlj-cgt. 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 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 resiyhxpup27 5+ z+yx7wqvstance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements abou hx27ywy+x7qvupz p5+t 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 when operatizjkhy(ub g2 )*ng at 120 volts. What is the minimum amountyb*)khzj 2u(g 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 s9 cp*ph07p yua 4 ohm resistor that is dissipating 36 watts of 7*p9ypcs0hp u 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 oumhj1h o:is 03f current when connected to 120 volts. If them3 uj:h sh0o1i 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 muc mdbx .25znq/ah would it cost to keep a 100W lightbulb lit continuo. na/2xmq 5bzdusly 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 lightbul dbys8mnml3 bbb use,.c1 5/j9b results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of thes1ublm.m y/bcs85 , j9b bdn3e 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 sg2p9( w c pjt14cqs6tkix 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,qstj(9k1 gpcwtcp 62 4 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 resist6bv8.:u (smm. khfxhoors to form a simple circuit as shobkhhf (v usoxm6.8.m:wn 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 resiv*-,ks2yvoma 6(vj vdagpe6;gfs3) bstors to form a simple circuit as shown to the ri * ;p2 g3vs bv6omy(vgakesf,d-6v)j aght.
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 ideasi9bk urxhf; j845/ qyl ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads y4/k;9b hiu85frsjx q 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 resistor;,wz+u:l ajxcs are connec,:z;jw ax u+lcted as shown. With 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 ammeter, a switch and three resistors a pfc.hpz v*lz7hxot5 3sx+35s re connecte *.h z 5xz pss+v7hof3p5xl3tcd 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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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit o7 +p cz-ls(dx shown to the right, what is the equivalent resistance? Assume that o7 (p+dsx -lzcall wires are 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 rdzpjvu.vok36)ie 5dck .6p g- ight with res..j)k-o uvpd6vz c53 diekp6gistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connedwr+z(wgs3:d cted in a combination series and parallel circuit to a voltage g 3(sdrz+dw :wsource.
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 s0ra swsm5cp e fg6zsp,-1p09yhows five identical resistors connected in a combination series and parallel circuit to a voltage source 1c m05wpf9pes0s rgzayp6-,s.
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 identg so:dypk)4rc9w 9du2zs, jb ey9m/y-k d+;fpical. Which bulb will be the brighd/-w2mcs ,yky;dgoy u9fd4s9: kbjpre )zp +9test?


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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 z/5 .rfch0c9vndkb j9n cu.0tswitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperesb vfck9n.zd/thcc0 n0 95uj. r.
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,p.txvbeyh - i,2,k )hk yr,wmnf7+ba , an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readmth , by+pv,we2axk)7 ,. rk i-hfn,bys 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 switch and three resisto y bggaov-+q68m1 3tpars are connected as shown. With the switch open as shown in the p6 t-oyg+1bvaqamg3 8diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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