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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 shox mafyv ez8s5hj 2;v+9wn, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron f +ymj; vva85h exz2s9flow 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 connecqqd ea7:.y5 cym /bii(ted in parallel, the_________each resistor is the:a(c 5e.q q7/id ybimy 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 w;lsb.9 7e,n )y ywhnj e**wjyvire of a lightbulb causes the filament to beelhyejjy, ;.w 9*v7*n by s)nwcome 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 lights are being replgw c6 sk (ic6ml7qi027km lo*zaced with LEDs. LED is the acronym fkl 6q0lci g(k 7smo2w 7cm*iz6or 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 cr0l egrokst n a6m3 f/rfr44)3poss-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 o03rt rk4n/ fs3gf)pmr 6l4oa eld 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 may8due2xgop h p:tf2v iq.2z5+ terial. Wire II has twice the diazif.po5 g8x2+ve qt2u phyd2:meter and 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 diamet+ u)cfm8 whakfyu-s/x qdjj*ewi8 i)4 xy+:x9er and half the length of wire X. If wire X has a resistance of R then wire Y would have a kx uf-uy/4y+*xe +98wsi:c8wjxd a j)h mfi )qresistance 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.1c0rg. -r zlyi This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of zgrli 1-y. cr0this 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 brij,nj wcnb f0yp9g:ck ;)2u1em ghter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given voltage,wn01jukc bc ;9n2):jm geyfp?


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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 m ey:lc (ns: +i/*ynplk13jwz katerial. The length and radius of each resisto*3/pls(:kyey:z+i lnkj n1 wcr 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 c, k4uh*)exkj 50hnjxthe following way: “Two resish05* cujh4jekx xn,k)tors 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 has internal p/tcwde bs.gdk y;p*,b06m e; resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most nearl0 ebc.p; ,bym;d *eksgwtd/6 py:


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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 circhpkvj3ha3zlp1 3h,d96(z lrhuit shown to the right. The three bulbs 1, 2, and 3 - represental 1p6 r9 h3z3zphj h3kd,hlv(ed 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 currmp z(gtp l+9.j57ncduent in all three resistors ipgjlp+ un5c(m7d .9 zts 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 repre9h- xute 3(deskt2t 0bsents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb t0-xtht 3 bku9(d2e es(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 concernin/mxd 5gnb-1 nyg t7m7vg the simple circuit shown where resistors R1, R2 and R3 are vx5 nn/gyt1 7mdbm-g7have 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 k,*i -zboy.xuX andY are connected 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*bu, o- iyk.xz each other 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 6o (7 lrj+ udizr:za;upass through the identified resistor in 5 seconds once the ra uj;(+6z ulo7 i:drz 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 the following s8 e,fljj*xcxdl8 1x* uimple circuit have the same resistance, which would l d18 j,x*ufj l8xe*xcdissipate 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 circuivfn76 s ftq3u;zc2f7v; a t*cnt diagram, the current through the 6.0 Ω resistor is n2;ctt za7 vu*nq;c7sf3 ffv 61.0 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 connected in series to a 9yjw 6n;t 6h as/rtv(cbattery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. n6htawt/src;vj9( 6y 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 hk:t2x,qyfw9tq,fq- t+ay zy48sc j: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 ihztc:9- yf,ak:42j y,fq+t qx tsq8 yws 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 watts and 120 volts. Whagqev* k1iu 1p3+y doe.t is the maximum 1d *ke 1g+ep3iy.qu vovalue 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 operate atxgyq1+) o9 *kjg7dyad 120 volts?q1yd g ax)k *97ydgo+j

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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 resistor that is dissipating 36 wa6-z+o(wnfnbdj+m e ;ztts of power d-+owe6;znf( jnbz+m?

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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 i1 wgy2gl4u6ytt;nf+ n ron used to press clothes is marked "120 volt, 600 watt.” Infn+ tl1twuy4ny g g;26 normal use, 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 following resistances cou 69ixfs q(u/8wuev4ldld NOT be produced by a circuit containing onl8uulvxe fw9s i6/q(d4y 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 equivalen ,gfkj49kg6k jt resistances CANNOT be producegfk9k6 gjj4k, d 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 caplpf 16exz x+5n be connected together in different configurations. If all three resistors are used in a circuit, how many d 1ezx5+6fxpl pifferent 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*j efo*m7 t 7i zuvnbus f8uw*605wvq; battery, a total power P is dissipated in the circuit. m8 q eu7ns w5f0ztujfoi u v6*v*wb*;7How 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 resistance R1*nbqld ;ptdr1 g lo05( and R2, are connected in parallel, the equivalent resid l(o;drnt l1gq*5b0pstance 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 designed such that it has a resqt1em 7s0b6r bistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would tak s1ter6q b0m7be 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 that is a.iv57(oh f r5y tzrsdr9) j/mdissipating 36 watts of power?fy5z/hi7rj(vots dr a9r5 m).

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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 whh6z6pp yi 3k0hen connected to 120 volts. If the price of electry 6h ik3ph6zp0icity 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 gmp73lptwxa jp r0 -6*tb g;x31os: dkhow much would it cost to keep a 100W lightbulb lit continuously for 1 year at a rate of 0xljwxd7gma -tpt31 *ps bo;:r36kp g$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 in a p5spjs8ocx x 14ower of 24.0 W assoc5xssx4p18o j ciated with the bulb. 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 dijx7gl8 .o4aowns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected7igd l. jox4a8 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 j7bp dg s0 vk/yflw1jg.(c c0+simple circuit adkpj/v 1sc 7wbf+gl 0cyj.0(gs 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 f q8+krs -r6pn;p/dc(ljl gc( form a simple circuit as shown to the ris/-+d c r n(6clqfpgl8;rk(jpght.
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 resistorf*hw. 1ep3qp ys are connected as shown. With the switch open as shown in the diagram the ammeteq1 ep*wyh3p.fr 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 arqr*r8,iogb hynopw9p3o 1/ 8ie connected as shown. With the switch open as shown in the diagram the o8 *wron,bhi ogqp31iy /9p8rammeter 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 ammete +iokfz (03fwnebf1 7pr, a switch and three resistors are connected as shown. With the switch open as show1 +nfpef7ko b3wi0z(fn 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 right, what is the equivalent res rngq7ev/ cv3sf3l6xj( s6ay6istance? Assume that all wires are ideal, the battery has no internaly vvjn6s3 r6slqe( cf6/3axg7 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 circux3n. 5/t-4e jqz8 chm pyoldv8it shown to the right with resistanceetl j 8dhz qm8v /nc.4po5-xy3s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 be-s5bmj5 2 ,sbdpc2q w hut2v(mfh fyg4rr 8;:zlow shows five identical resistors connected in a combination series and parallel jytus( m2 5: vrsfhp8qrcfm zb;w5d gh2b4,-2circuit 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 fivf jzb j(f9v3y.e identical resistors connected in a combination series and parz.v f y(9jj3bfallel 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 idec;2xhcd+yq c* )uha+ rntical. Which bulb will be the brightest?y d +cxur*+;a c)chhq2


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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 x75 : bqg ih9ahxg)ctp65pt.mx ,yx7iconnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 am7i) 5yt.qt5 ha:x7b,xxc ippgm 6x9ghperes.
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 swin5jlq*7s9b2i*/1b(yb9c sbuhwlo. gl0v tm m tch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampereswl5h bmmlb qs9j i 9 ubo1sclb*7/(n *yt.vg20.
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 ann*ch8 +fhy29njfsj-m9uz2d u tb5 rg2 d three resistors are connected as shown. With the switch open as shown in the diagram the ammbs-d9g5r2unn+j8fy c*9tf 2 u2hhzmjeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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