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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 ecx34-pfrd 9y/u;4sytu p x9a0ud8in x xists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction of the electric field through the interior of th9pxf4 0xu -/ax;rt93dc 4dysi uynp8ue 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 swzl.vq3b2,xi s1. b;8ll pe hconnected in parallel, the_________each resistoi;v1l sq bz2 pb8.eh3.llws,xr 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 fun6bgj w/+znet)* i :ailament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the ligh a+w gzi/ 6nj*:nbeut)tbulb 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 hou0e 8ku4u p3/jelllm 3isehold lights are being replaced with LEDs. LED is the acronym for which one of the followi3uk0pe 8/em llli3 4jung 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-sectional area zn;-of e +-k0g7icozdA. 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 t+ez nkcigo 0;df7- o-zhe 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(9kb4pur98wwvv q h ;t of the same material. Wire II has twice the diameter and twice the leuhb9vw9p kq8;t4r (vwngth 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 t4joq cz8m1i:k he diameter and half the l48qoc1 izk: mjength of wire X. If wire X has a resistance of 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 r3pyf-uvbkcws(( 4( +axzo1rtcn;+ su adius r. This piece of material is then-4k (ya(( 3 z1bowsupvfsnu+ trxcc;+ drawn so that it is a cylinder with 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/b7)ei.j.h. m bzv( fuobu sp4. 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.uv7(bem u.f.j hbb i/s)4opz 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 m /iqsm.33 5:at1wtwporz2grof the same material. The length and radius of each resistor is: 51z3/ wa :s qtrm.og2 rpi3mwt
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 th .pdjig69ikor z+8+a pe 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 resii+joa9rgp6 8k.+z dipstors?

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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 6 sn0m f,43eyf7jogjzcircuit diagram has internal resistance 10.0 kW and 0n3jffjzg moy 47s e,6the 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 ths m*rn5/p(k ihe right. The three bulbs 1, 2, and 3 - represented as res knprm/s*i (h5istors 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 current in- g4el12b pavced7 /tg all three resistors i2e/c 1gdv4bat-p g7el s 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 rigkttb6 b.hop3 i/sh /c.ynh-bodix6 ttp5 2s5-ht represents a simple electric circuit composed of 5 identical light bulbs and 2 flashl/ hsi yonbp5t3p62hxb tsho.--bd ic6k5t/t .ight 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 statemen9 o s h0t-tz8c3h3w7wezkt(xbts is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 a b3ott80sz3t-kc (79x zhwwehre 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 in seri* 2lp:k mx(7cxfdm.avzr 5ky+ es 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 th x* 5 krmc+m.(d:a vz7y2xfklpe 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 thex;f7 6 ltg4pgy identified resistor in 5 seconds once the circuit was closed?6gx ltp; 4gf7y


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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 resfr3n* +s bfth61zpl4hibu9f :istors in the following simple circuit have the same resistance, which would dissipate the siz1h u93fbr:*fh 6l4+ fntpbgreatest 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 6.2fi :vx94gpvyf;vv/p0 Ω resistor is 2p ip/;v :xv yvvfg9f41.0 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 R37rwuly 36qec/0w *idz 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 across R3? yd0qwlue/6cz7 w ir*3

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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 ar99ot -xz l8c-t-l6up )e c3efewfc+j he connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What istx+8fo3wzl-ch)j puceet-efl c69 -9 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 voltxk:*5fg ek h60s v r*wio*clp0s. What is the maximum value of the current undep ilh skr5c0:o*fkg*0e xwv*6r 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 bqpw, b lq-+0ia 60 watt lightbulb designed to operate at 120 v+ pqlwb0 ,-qbiolts?

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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 flojxs9py9o+ ud2ep2s, d ws through a 4 ohm resistor that is dissipating 36 watts ofj,xp9py d+2s o2 edus9 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 cu6fw a,z7t*jc+; kgzblothes is marked "120 volt, 600 watt.” In noabc+w6f7z jt*kzu;, grmal 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 could NOT bexib;s7fevtn-m +0g u6 produced by a circuit containing only three identical 6Ω resistors?v m+7sg6nb;-t ei0fxu

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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 t*yq6 y d9ctf(njtaoc54 bfx*3hree 1.0 Ω resistors. Which of the following equivalent resi5y 4qd36f9 ntya fxj(cto*cb*stances CANNOT 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 differenas,1tj1hko wt * yx/o6t values can be connected together in different configuratio 1ow, *h1jxkt st/a6yons. 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 resistor9wrd b8s y 4f*5xcr-sr 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 resistor*y cw s5d xfrrs-br894s 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 connewbj*tu7, 26a d8 nen (hhf5k5ne h/trbcted in parallel, the equivalent resist2/ w5ahbd t( n68 urbf5n 7jekhn,eh*tance 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 resistance of 12Ω whepmx (()al3 v tfqik(;nn operating at 120 volts. What is the minimum amount of time that it wouklvim f;xnpq(at )( 3(ld 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 f6. v6 hu h mltv)xr)xw;skl.5mlows through a 4 ohm resistor that is dissipating 36 watts of power?. 66th.m hsmlru;kv)v 5w x)xl

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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 heatxp (l2.-u6 jsh3k2wdpee xz e/er draws 13 amperes of current when connected to 120 volts. If the price of ele-dw hs. p k3eep/lj e(uxx26z2ctricity 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 . z1g3pfn6xodolm v32 to keep a 100W lightbulb lit continuously for 1 year at a rat dxlg23 .pofo3nmzv16e 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 o4d+u54itgab*7vl 7vm qeee t-f 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the followin v 474-ud5m*v+gql7abie etteg 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 eh,7.wfxhi pgf,t ( 2xrated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse 7x x tfpg(,iwehf2h.,, 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 simpig)dx jr dp(g4-gc); ple circuit as shown t4-d c(j)prgipdg ;x) go 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 connune :i:- xqz,gected to four resistors to form a simple circuit as shown ton:x q,eig -:zu 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 ideald8zag- k;s g+e4ca*+m4d e spn) 1ginf ammeter, a switch and three resistors are connected as shown. With the switch open as shown in n 1fin ge 4d8a4g gcmdkzea+s*-);p+sthe 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 annlrhpxqw2, 8pf) zx9zs;1oq ) d three resistors are connectex8rz qs;xlqp2w) hf),noz19 p d 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 batterkg5,70/+wol:ylpk1gnv ex b ky, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampegolepv0 ,xwk/b:75lgy1n k+ k res.
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 resiegwky0q1 pem3u.cwxh9( 2pk hv 45k+tstance? Assume that all wires are ideal, the battery has no internal resistance, and alxek .2v(e 1gut34qywm0p 9pkkhh+5w cl 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 sho ep+sghzj(0r )hs; ju xh,;pl,wn to the right with resistance;p+ h hjuzegsr ,0s;jp,()hlxs $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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*caez2om40iw ) ux,t g shows five identical resistors connected in a combination series and parallel circuit to wua*t 2 i,zxmg 4)ce0oa 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 belodvll6+; n bf1/g0nbls(mf9my4xd emhs0br 4) w shows five identical resistors connected in a combination series and paral sg4dv);/m blm y0bf r 06(lm4+ehbsnf1xn9ldlel 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 buvi )my )8hbolba3k1l :lbs are identical. Which bulb w)il) am1b3l yobhk8v:ill 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 /7)wp d sj/weugsc:7iswitch and three resistors are connected as js:/c e gd7us )ww7pi/shown. 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 battkfx((ir269tv* b:2udb gs ; o5wvjxmn ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reasx v uikdr9wb 6ot:v n g*bxf(m(j225;ds 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 thrz:j/ik bk eh/5ee resistors are connected as shown. With the switch ope5kjb:hk eiz// n 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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