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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 z nt2wq8y4r 5qv7q +aa+f cw-qconnected to the battery. Which one of the following choices best describes the diwq yf2a-48+ z awc7+trqqnvq5rection 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 ar 1++ ap5p-illr1yfrwbbui)ggs4ks ; 0e connected in parallel, the_________each resistor is the samk w;)10pb- ++slgifrilya1u45rb sgp e.

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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 ti81dt9p-eo w8azhz 7dhe filament to become9-w8zdti1 hpazd87 oe white 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 light) lay9 zm/rpw *b3)tqvs are being replaced with LEDs. LED is the acronym for which one of the following c3p)m9 taz*w) v/qlyrb hoices?

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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 by*l0c5/n l udm5qmr) ep6zs:length 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 0*q6l bu/mzpm le 5ys)n dr:c5L. 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 wikly3 6md3ymjl.x-k v/re II are made of the same material. Wire II has twice the diameter and3d.6l xkyjkl3 /y mv-m 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 diameter and halfpc 64b*l yoprq,-0p;1jzfpnj mlo1t 8 the length of wire X. If wire X has a resistance p04 ;f1nppmt8 rz,llo jy q-p6o* bjc1of 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 piece of material t/8f8gixf oxq 9g.p6tis then drawn so that it is a cylinder with new length 2L. What happens to the resistance o/x.o g6q8xf9ptgft 8 if 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 brighterchmz0*m;gr ys r+t r.eg08k5 smvj; ;/ca:roq light bulb. He decides to modify the filament. How should the filament of a li;h; yr ;kgczj+m*ss0/ cr5verm 8tgm:q.oa0r ghtbulb 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 same material. Tbtcvx*jt 2)(rq o3(z whe length and radius of each rerjz2(q(* x)tb3cvo wtsistor 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 ba9/;idwx-bgahc q( .hqttery 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 this arrangement of four resisa-gq(b9 dihxc .;qwh/tors?

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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 has intep)-x.qb(.ptt ui/ pxk rnal resistance 10.0 kW and/ ..k)x ixpu t-tqbpp( the ammeter has internal resistance 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 rightwhhx l, u.bw5 (gw53xd.t: nwm. The three bulbs 1, 2, and 3 - represented as resistors in the diagl.x5 whb5:x hd , gwt3.wum(nwram
- 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. /lf tcw 1 neusc ukzx7.4o629hIf the current in all three resistors49n ht1ow.le2/ufk6 c sxz 7uc 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 ate0jl5 cjx83ny right represents a simple electric circuit composed of 5 identical li0xj jc5ln3 ye8ght bulbs 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 statemenjmc,wpn-2cbt +b46gnr piz ml323 qi3ts is NOT true concerning the simple circuit shown where resistorspi2 z q6w,ln3bct b4rip3j3- + mngc2m 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 connectuqez4vp +6 rxkrqf4*msp64 +8kuk s7q ed 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 choice eq7 z qku4usm6q+4vkr4 pprskx8f*6 +s 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 resis( ioav n4ws)9( gem*xftor in 5 seconds once the (9sawe v mgnio(4* )fxcircuit 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 followin55(o 0vyqk :v+ qk-sl(o uhnphk-)sbdg simple circuit have the same resistance, which would dissipate the greates l h5:vvh- p (d)uq0no q5+okk-sy(bkst 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 throu7nl0r:guq r h(gh the 6.0 Ω resistor is 1.0 A. What is the pow ( gr7qluh0:rner 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, aoj /7w6zd 7i4erutoa7 nd 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 voltage atwo4e6oijr7u/z7 a7 d cross 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 zgn4r( u /f -klwr9*exandR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipatgr(zrune/lx- 9w * f4kes 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 coi: c r3yehwo8u-l is rated 1200 watts and 120 volts. What is the maximum value of the current under w:ry3- oc8hue 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 operate at( m ru5vs wa:rh22yzp5z+jgk 5 120 voltsr5j (wvum2yr pgska+zh 5 :5z2?

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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 flowk6x24j f /e(ha hd)i3u)dqsdmr a,pr)s through a 4 ohm resistor that is dissipating 36 watt)h6 prd amr2e,j)/dqih4 kda( fs3 ux)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 clotxm7vs+-vs l9f1 ipg2f hes is marked "120 volt, 600 watt.” In normal use, the i2g9lvfs vs1x+ mp7-fcurrent 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 *4vdrzq40jldc f0d/ qproduced by a circuit con4qdl vcjz0r q0 /ddf4*taining 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 three 1.0 Ω resistors. Which of the following equixlgpid h7 )i((valent resistances CANNOT be produced usinglgp(xdi )7(h i 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 differe vmk: hn 81/4cqka;laznt values can be connected together in different con1chkz:va/m; ka4 n8qlfigurations. 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 total po 9ua4vu *np*e n-g6ayuwer P is 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-*apnuuu6 gv* aey49n 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 connecte z/aivbgej(w0cv/ . -lz79f gjd in parallel, the equivjcwv. z 7j/gi-9a ge/lvz(f0balent 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 design .iywzji6j2 tb5nhue)8 i7v7 wed such that it has a resistance of 12Ω when operating at 120 voltwi7 j2z.w nb75ijut)ie8yh v6s. 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 7zojh e/g9;hhthat is dissipating 36 watts of power?j9geoh zhh7/;

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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 current when connected to cl(f1ql- rhm+0 c* .x gaxqj7cqq,gp2 120 volts. If theqg,gr hcqclxj*-ac.x(p 20qf7l+1 q m 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 lightbulb lit coct-o(* u//kw h :xbjbjntinuously for 1 year at a rate of*h/ jt(-u :bb /kwcojx $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 results insho(yf.-q 3iieyu/ q:zo0 iw1 a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resi qqo0ui3e/f oi(wy 1iy:s. h-zstance 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 wattw.x4vdd+jtd rxbq n05( ;i+yqs in a 120 V c+dbvj.qx drt wi;50xn+4d (y qircuit. 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 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 circl0 fwdstt93wyp; 50d buit as shown to the riyb t;ww0dtsf093pl5 dght.
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 x;ukejnm 7d a.+- dx4yfour resistors to form a simple circuit as shown to the rig-.yneda+ux;m 7 4kx jdht.
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 te*ux3y,q.jm d+b wp mj .dh3/ehree resistors are connected as shown. With the switch open as shown in the diagram the am*yu,jbw3h3 exp+m qed/j.d . mmeter 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 resistors are c2 :u7/h nbelbt od.5hoonnected as shown. With the switch open as shown in the diagram the ammeter reads utd.oo57 2le: hnb/bh2.0 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,w2s48ou 88 o5yu9punsl:de9ur biy.e an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter re9ybo ed8lu94 r:o 25pws .ny8u8 usuieads 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, wpxb1p mqhvx nf/j4a/* (ek(t8 hat is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical kpqex/bhp* (nav84 1/ jxt( mfresistance 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 with resn,a9 71f)b;,h2psf a uzwgsk1ps akl-i19h,bw1,)sal upp az; asf n2-s7fkkgstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 comz3bf de;i7y:uof3 cu3 bination seriesd e;:i yfcf7z3ub u33o and parallel 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 rvp.a bz n4y:;five identical resistors connected in a combination series and parallel circuit to a voltage source.yv:nz.pb;ar 4
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 identical.abos pf09 :in, Which bulb0fiopns,b9: a will be the brightest?


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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 coc+df g0u8fw ,een6 4gfnnected as shoff6d ewuc+eg40g8 fn,wn. 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 a0y vro h8zt5j/ 7g:fgjmmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the am0vr:jzgjt/o 5g y8f h7meter 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, anp6 (hag.(u*4 1pt wqfbi3 ky (ee*jtci ideal ammeter, a switch and three resistors are connected as shown. With the switch open 13c *bpyugj ef.(k eai(*46pq t(hiwtas 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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    总分:50分 及格:30分 时间:不限时
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