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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 meta1gd0kr(0 roxx 8gm( okl resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through 0 dk08gorx x1omk(r(gthe 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 conn4clmub6/ja ggav0fj (mx1 ,5 rected in parallel, the_________each resistor is the samb g15au(/jm6r4mv x ga,cj0fle.

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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 thghg3rz2u ( tuak rvg*p* .-2ygin filament wire of a lightbulb causes the filament to gug* rarph 3.gtk2* zygu 2v(-become 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 replaced with Li7 ;0a us,tjqqzi;8xven p w.)EDs. LED is the acronym for which one of the following choisiej; q)z,vna i8xpq.7twu;0ces?

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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 hztqlz r;d 7 9o4wy9q7jas 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 resisj;q499lo yq d7tzz7rw tivity 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 or 5qb4.3wfdm+e3 ujn2cko j(of the same material. Wire II has twice the diameter and twice the length of+4reo cwoqujn 53f(dmbk2 3 .j 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 aak8td n1w5wpm.h 10v:pj7kz y ;dl(dhnd half the lj(5 dhplh.wmy7 a dztkwv:k1p0d8 1n ;ength 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 rzt;i0u smo 6lp *f+be wwkkl,7 g8)7wmesistor has length L and radius r. This piece of material is then drawn so thatb0ek7w f,us6 +mm;o8 kpwt lw* g7)zil 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. He deciiay +l:b j4 .erkbma):des to modify t:ak4meri)y ja+b bl :.he 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 resistors are made of the same mase/.g6:a x qezterial. The length and radiu: zegx/eq.6 ass of each 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 res19tl le 5g*azlistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistor9alll1gz5* tes 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 rescl f3pjta 683(mh6 vuhistance 10.0 kW and the ammeter has internal resistance 25.v3u( 8 l hm3jcpta6fh60 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 right. The three3y.jk (oi-yz0ae 1fii bulbs 1, 2, and 3 - represented as resi zy( .i-ae1k0of 3iiyjstors 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 electrica g; )bp9kl n.j+hufco6l circuit at the right. If the current in all three resistors is equakon l;fj9 buh6c .+pg)l, 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 .j omqm (6lq2j+u:) vvuxrpd:of 5 identical light bulbs urv)l o+mmpu:xj.j2 vd:(q6q 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 g uzi c1 l,c0nxi3af 46bj,b/pis NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equx4a6fb3/u ji,cinp10zb c, glal 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 series to a batter8 9 ;,pc6hqnofkolu+o y. Bulb X is brighter than bulb Y. Assume all circuit elements are6uf9 konlqh8p+;c o,o 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 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 resistor )xk :1.wmkra ovsc*2zm f2e.qgw6rv; in 5 seconds once th k vm wmr122)qszwv car*of g.;x6:e.ke 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 bvy 2+shw*t+x0 v q9wxthe following simple circuit have the same resistance, which would dissipate the gr+9 yt*2bvs0x+qx hv wweatest 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 9* ok--m irbam/+ e:k3w3c th-xjbudzcurrent through the 6.0 Ω resistor is 1.0 A. What is the power supply volta :d-j/zk3r mb9tum +k b*3-wxi- heacoge 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 seriehxox(l inr+ qf8*6m ;ws 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 pow; 8+f oxxhw6m( r*ilnqer. 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, R2nu;stj//5 2qfif6r)z4fwgr x andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, uj/n4fg5fwf rtq6iz/s );xr2 R2 = 4Ω, and R3 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 watts and 120 voltt 3 lfogh1dsg1i;r 5j*s. What is the maximum value osih5rt 1; 3old *jfgg1f 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 lilike39.3nzb w6g* uysghtbulb designed to operate at 120 volts?g bu3izlw 9.6s*key 3n

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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 w5 *k-vfbgi/zl avr3h-atts o *bv-ki- 5hvfg3a lr/zf 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 gm 3vl 3g*zd+yrjs+np 3) fdz1press clothes is marked "120 volt, 600 watt.” In normal use, the+)gg ddf*13lm zpj3 zyvsnr+3 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 r9bcna; db0 oj1,8q)4e64d dhtzfz yl xesistances could NOT be produced by a circuit containing only three identicalqdb84dhxt1c4d y60 9zbnzeoa f; , )lj 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. W1: :d vts,sp28 dmagslhich of the following equivalent resistances CANNOT be produced using all thredm8pd::1 als, tvsg2se 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 oq/1/mb6 9q ujetgl3u jf different values can be connected together in different configurations. If all three resistors36 ql 1bgmj j9u/tq/ue 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 zo;rzzt4(05bdp) w)*+l9yc cnsb kzg resistor 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 seriesz c4do5n)t0+wb9z(bcrk ply)g;szz* 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, havinghtwcob*m/ r1c. 9l zz6 resistance R1 and R2, are connected in parallel, the equivalentcwh1lo*c.tr bz 69z/m 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 designed such that it has a resistance of 12Ω when op; o1mk4q kj9u9p.zk5zt s 7pkperating at 120 voltsmp75 9z4 uko;zsqk19p tkk.pj. 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 resiax;iqc aa5l2dii * m5b3de4 s;stor that is dissipating 36 watts of paiiel5 bi2;d 4acdxasq5m; * 3ower?

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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 conppj 04jv vw(i ;z gussvu)h9*)nected to 120 volts. If the price of elevpsvjui4w);0huv (9pj)* z gsctricity 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 wok.dcjpzoy5ympnvi m9unqf 2 k 2;3 *.,uld it cost to keep a 100W lightbulb lit continuously for , .fucpknnpv.m ;kz2 j3yyq95* 2modi1 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 lightbulb result4--h1xf gp,gx 2wy.vpwg,fv j-k1 tlds in a power of 24.0 W associated with the bulb. Which one of the following choices besvw,1l 1fhkt.vg -g- p x2,4ygwfdpj- xt 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 m/tv nxwf. qu,fb lg)nc+ca4l.z)+/yr;z6ezof 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 tzq +m6 )x;,l+zgfcu e4 /v.bfz)lrac/yn.tnwhe 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 foh5l3mt(lsd4n,k/ ith rm a simple circuit as shown to the ri5(nhhtdk,34ml l st/ight.
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 form a simple circuit i gxm51829zc qdh c6cgas shown9iqc68 1c 5mgzc gh2xd 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 resi n a1 c+7peg-hluq)ahd 2c((zlstors are connected as shown. With the switch open as shown in the diagram the am ne d21) z((h7cp+luq-aclgha meter 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, a2 qengytza ;,r);p)zy;u1ad on ideal ammeter, a switch and three resistors are connected as shown. With the switch ,2gpe u1n;zaoq)y)tr; d; za yopen 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 re.eac2* t e3hnqbp* - vz ylu7gxc7)8aosistors are connected as shown. With the switch open as shown in the diagram gh.ozt*8pe7n 3 2buevc -c 7a*ayql)xthe 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 showno;qu-but8owr74d q1f uu*(-zt mo ,pr to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistorsou-qr; qt -,(bp7 zu4u o1*8wftrmudo 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 f7o 0d68mbivn shown to the right with resistabd6i f80o n7vmnces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 recx)nb xbp8vf qf 7b+*4sistors connected in a combination series and parallel circuit to a pq vx7f+)n*b48 bfbcx 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 r3gp 0yi2vz (sz b1d5uhesistors connected in a combination series and parallel circuit to a voltage sour3bu20iv gh 1zd(zp ys5ce.
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. Which bulj(o6hfgw y4+rb will be the brighteg fyjw4+(o6hrst?


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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 aranjx4ei 75w j18f q 2dhjhv5.qe connected as shown7ad2h qwinxj81 j55ev4 j.fq h. 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 ammeterc7vp3l 3gbt irb v0(r9gv* v2:yfq9ah, a switch and three resistors are connected as shown. Wit hqi39rv p2:vy0v(c7 gltb9gvrab*3 fh 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal a0w,70;m jgf)wyabpn hmmeter, a switch and three resistors are connected as shown. With the switchw0npbg) mjw;h, 7fay0 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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