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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 showp q; fa8qb( b,3 ,c9;uq/pv6uhtnxwphn, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resis;,xb9c / 6wf qh3pa ;( pq8nutvpubh,qtor 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 connectk8. hig g(9taied in parallel, the_________each resistor (h ii gtk.9ga8is 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 filaadqn3-1y 9wg pment to become white hot, while the larger wires connected to the lightbua3-1n y9gp dwqlb 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 househz7jf s258x/y xhfl 0tov 6p+szold lights are being replaced with LEDs. LED is the acronym for which one of the following chz0l+/ v 6hf2js 7tyxsp 5ozx8foices?

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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 ruzp s+(fwq*5graphite resistor has 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 L. What is the ratio of the new resistivity to the old resistivity of the cylindrical (fwus+*p5rzq 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 madh+)h1krxw pk 9e of the same material. Wire II has twice the diameter and twice the length owh1 + pkx)rhk9f 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 mat *kis7u5 t1jmu/hoem4 erial but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resit *ejuu47/imhmo1s k5 stance 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 pifm 3c6-0y rappma+g s0.rixc/ ece of material is then drawn so that it is a cylinder rs3myg. pcaxa/6pi0+cm r0 - fwith new length 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 bulb. He 7: nlvn36n9jovql0vo decides to modify the filament. How should the filament of a lightbulb be modified in order tn 6:qon 9v07vl3lo njvo 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 oa60l;f : v7moadjri4s f the same material. The length and radius of eacr vio4a6s0ml fj; :da7h 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 connezajefwp )*od5 1q ,(/i :weszimx ie/)cted to a battery in the follows ao,)1f xiei//w:ip(z)5 qw*deejzm ing 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 e 4aygm/8n+ tlwoov:z77sym9accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. Thm :n lyvsz e o9mt8/7ao4wy+7ge 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 comport czj-9 x1.anund circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistoat- r.9x1jcz nrs 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 fnf.h psn7 2u u2aij78the right. If the current in all three resistors is equal, which of the following statements must be true? ufif.ups ha7nj28 72n


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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 s;uakotj5 *x*y ll9ky)imple electric circuit composed of 5 identical light bulb u oy*ytxl*akl9k );j5s 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 statements is NOT tp ti.vd1gw 6 uk0774kjuh nm)true concerning the simple circuit shown where rwmnk 7kud.tgujh vt0)1p7 i46esistors 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 z /p u;1ea;fsgpaboif. 9x;d5in 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 othpf9uapa xdg;5zb/;i.1o; s efer 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 the identified resis t*4bxaz 4)hahtor in 5 a*ht44)xha bz seconds 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 resistors in thhg eb*v9s.2 gar-co*;ul h nq)e following simple circuit have the same r9 g 2u*o*sv e-hhbc.)n;qrlagesistance, which would dissipate 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 rf- *ebns(k1. so +bh(s4qp lyyesistor y(yhsb+e s-lq .*o4kpb(nfs1 is 1.0 A. What is the 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 conw2eyfe ,r5h: anected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a ra,2e5 rhyf:ewesistance 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 connected in parallel tohlc ( wm6vm.nh )jclh9xq 70 7wa2pgd1 a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current il.672c)71awwx0pg mhd j (q vhcmh9nln 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 volts. Whvk /t(;ovylw,1h qu (ady )*p4dyqf1v; ydsl, at is the maximum value of the current under these vq/ fo11y( du; , dv;qvpy*y,4(khswa) dy ltlconditions?

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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 wfhbvg/d/4(p( hd y-opatt lightbulb designed to operate at 120 voltdf(4bd -/hgo vhppy(/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 +rmfax cist/(15kl8co l 1rp24 ohm resistor that is dissipating 36 waimo /5csrl l a21pr+(kctf81xtts 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 clothe c3j4dr 0q3g:sky 2yrws is marked "120 volt, 600 watt.” In normal use, the curre4d:3 rqy2w3s r0g jcyknt 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 ci dp3syd qgs*.8g1ctv/rcuit containing only three ident8 3qs/dgt.cdy gpv*1s ical 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 1yo35nmhg plu45,u v3;c rj;kf.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all threej35;grov;5p muykhu,fc3 4 ln 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 bsm x/ c5xgu-4ze connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resc s4zxg-m5ux /istance 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 resistors1s ohx 0xjla k3c/,:y is connected to a battery, a total power 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 x/1jl kx3: ,ohc0assy 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, havi;mx1p; lg g-m jruzt+3w)ee3i ng resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistalmgp3 3;z-eguj xei)+t1mrw ;nces 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 suc ,ah(j8arlsw2 )uwz +(bo3g vch that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of ww(rvba za+wh3),uo g28 jcsl( ater 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 dissnxo t1 4,b1upnipating 36 wattp 1t1x4nuonb ,s 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(4)dh )d* igvsu5su marent when connected to 120 volts. If the price of elec5v( him 4dgass)* d)uutricity 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 light:r-gc2o5eaqc gf yxe3-x7a-f bulb lit continuously for 1 year at 7fxex:fqye3acr 25 o ga--g-ca 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 lightbulb resultspt( u60vdpttg t 2h*g: in a power of 24.0 W associated with the bulb. Which one of the following choict(t vhgtgd0utpp62:*es 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 famil. u 4b :)*svppolqrx:py of 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 vpp:uxpo:l)*qs b4r .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 con0 pqe 7aqjquoj3m, h8-nected to four resistors to form a simple circuit as shown to the rightp u3h0jqoqe 8m,7ja-q .
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 foupm- j )p9tuan6r resistors to form a simple circuit as 6)jm upn 9pat-shown 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 switch and three resistors are c, g 0i+30, mhllr75fahhxdp qoonnected as shown. With the switch open as shownfp,0m0i g 5 +h,lxaqrh hol3d7 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 antbk-s (5 m.nkt2whp su/p 6/dud three resistors are connected as shown. With the switch open as shown in the diagram the amm-ukpmw2h nssp( /t5bd 6. utk/eter 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 g d 2ig ms4+wk5qyi91eideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reaw9igk4s g2id5q1+ ye mds 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 equgjk.yx;t1 7fu ivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resik1u j xtf.g7y;stors 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 ofta0/nn5rrc mfb t 3:p. the circuit shown to the right with resista3/0n:btmr.tan c p5 frnces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fivs.lx8d*l*no.1usg k u e identical resistors connected in a combination series and parallel circuit to l.8ku*u 1ons dlx.g*sa 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 connected in a dpn;f)uwd:fg ,4he8y combination series and paral d h)ygn4;f wuef,8p:dlel 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 u 8sc,ahc)tmz(0 jeq9diagram, all of the bulbs are identical. Which bulb will be the bright(ej9s8am qut0hc) z,cest?


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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 ci;vy ;kz xnj84 7ka:vfc-hpzex9 s0h6onnected as shown. With the switch open as shown in the diagram the ammete:zk8yfza;khxn;pchs0x7 4v 9 v6eji- r 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 .x*(:lw;ut4hxpd ae m ammeter, a switch and three resistors are connected as shown. With the switch open as shown in thee4; laxhx* wtd(pm.:u diagram the 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 ideal ammeter, a switch and three r4z5bw;juzxtj:j 5 m5cesistors are connected as shown. With the switch open:w u cjxj;5bzm 45tjz5 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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