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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 jn bxfz-y*8eyx ry49* metal resistor connected to the battery. Which one ox8*f*rzj9y ey 4-yxbn f the following choices best describes the direction 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 are connected in parallel, t.gfx nwja4cf- 9+(avthe_________each resistor jt+9.afw- x(4vfngc a 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 fsqkfp (1j -hh3ilament wire of a lightbulb causes the filament to become white hot, while the larger wires-kshp( fqh1j3 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 rg t4vuwjweq:3wro c *vq.0v2; eplaced with LEDs. LED is the acronym for which one of the folloog2rw w.;30t vj e4uvqw: *vcqwing 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 A. yn(*6 tqqu b:s-q ;qarIt is to be placed into a circuit, but it first must be cut in half so that the new length y*-(aru :6 ;qbqqq ntsis 1/2 L. 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 wire II arel dtjlt()b t6) made of the same material. Wire II has twice the diameter and twice the length of I. If tbd (ttl)6l)j 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 dkl9h)26eh lphalf tl2lk9hph )d e6he length 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 hakl r,bz6 7xu yiech9-5s length L and radius r. This piece of material is then drawn so 6kh-cl9ubzyer i, 57xthat 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 0b 7mq lcfps xm(e0(h4wnp44qlight bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to maxm ps0feb4q47q0 hn(4p (cwlmke 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 materiaisnt.k + /7 v)kwvzz2wl. The length and razwtvs 7.vwzk) 2nk+ i/dius 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 resistance R, are connected tokb61ei xncy-v1i/ d7a a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a/xca116evn- bd yi ik7 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 interm)2 g6pvobj 3znal resistance 10.06)bv mp2zgo j3 kW and 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 right. The three bulb2mhee;7pt2 ih. 1qov b42n fhmcg08ux s 1, 2, and 3 - representedhq1bx 7 f2 cp mu.40vnhgmh e2ie;8t2o 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 electricaf;/u3 qa lkm1 xhr6j/ql circuit at the right. If the current in all three resistors is equal, which of the following /a kjf1/6hqlrq;3mx ustatements 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 simpl1l. a;t8vrxwqgy8l* xe electric circuit composed of 5 iden8.g*v1yw x;xltr8l q atical light 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 statements is NOT true con5 *a krvy)d mm/t6rmgl )xb*b8uf65efcerning the simple circuit shown where resistors R1, R2 and R3 are have equal resiyfa)vmlmxf bbk /e5)66 5rgtmdu*8*rstances?


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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 batt(lt gxtqxm*r h:+mg/ 5 w6nng2ery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If mxg (*xgrh5gn :l+tt wn2m/q6bulbs 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 pasfzh 8p0) t*zrcs through the identified resistor in 5 seconds once th8f* tprhzz0c )e 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 hxvzk/5 93cncthe following simple circuit have the same resistance, which wz/ch395xn ck vould 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 currzq kgvpa kvt*7)p.mf +hf).y2 ent through the 6.0 Ω resistor is 1.0 A. What is the m fv2qap k.z)t*7.)fgh+ykvp 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 serlf8aw;5a l bs.ies to a battery. Suppose R1 carries a current of 28fba.l;ls5 wa .0 A, R2 has a resistance 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 R15v//8 jksmarm , R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is ther//kjm58v sma 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. What is the maximum 1k bgp40, .try4cmnke value of the curr4kkctgb0y, ermn.1p 4ent 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 d7o1t6 f,c oc xgcx/rt*esigned to operate at 120 c,1/67trgx c* ofxoc tvolts?

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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 tyffq7i4cq -z*o*x w6lhrough a 4 ohm resistor that is dissipating 36 watcf*iq6*-wq xf4z7 loyts 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 clothes is marked "120 vof006m:ha pstplt, 600 watt.” In normal 0t:p6a0ps fm huse, 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 be produced by a circuit con o avff45gw*; 9zl,ximrr*a: ltaifg; 9v alm*lx,4a oi5rf zr*w:ning 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 ,b+z0*i yrjq* (+zqw qvc/axlu0m; zh resistors. Which of the following equivalent resistances CANNOT be produced using al*mirbzh*vq 0xyjc+ zu,q;a+( 0z/w qll 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 7ne 1kq/ q:7xz2 iw zy8yrvpv/different values can be connected together in different configuratipvx ry7q/v:nyk 7iz 8e/w 21qzons. 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 lf: 53-b6;jja yfz r( fq;i.vbqig0 tna battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical res ij rgbqnflay.b;6ti3zf 0;-v(: q5 fjistors 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 resistorsx*k6nkzyvi6*cs8i m h;oky(-i 20z pr, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Whiczz-hyi 860pk2kixk6ri(* c mys;vo n*h 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 wheni0s*m:uj-mimb dj(cfchn)a n 4nr3878 u,bhf operating at 120 volts. What is the minimum amount of time that it would take to fbn 84dniirmuus783hb f hja 0cjm,:cm( )n-* 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 flo zxz qvmketgn d+4 on5.r;z: ,x;cr.+pws through a 4 ohm resistor that is dissipating 36 wa+ p;.zvc;ordxke,q m5+:nz.ngr tz4 xtts 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 current when connected to 120 voly s2 zzz35cjz9ts. If the price of e25zy zzs9zc 3jlectricity 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 w f9k,y31o, qecq+du9,jpuom100W lightbulb lit continuously for 1 yep,+qqf39k9 ,1o ecdy ow,mu ujar 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 lc t-fj;1cvbj o*8*+ fq:qadj dightbulb results in a power of 24.0 W associated with the bulb. Which one of the folb* c-tc +dj8f j;oa*q vdfjq:1lowing 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 coi,zv4 z,;vm aamputer 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 ,m ziaa4; vzv,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 formr..x4rmjgpicdzi5u 1z ( 8v:jbk+c (s a simple circuit as shown to the rightz:m cpc(.jukz 8+brisi 1(.d5rv jx4g.
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 simpa18:s1p x m y2z8mqrtaazy8 d.le circuit a a8181:a atmdm p.y8szqxy 2zrs 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 sw xjtjatdb9hx,:/u i6m9dxx rz.g1 q,7itch and three resistors are connected as shown. With the switch open as shown in the diagram the ammetg9i,/xbxmurxdzhx 1tjqaj,d7t :9 .6er 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 idx8b1xn n7a2eq eal ammeter, a switch and three resistors are connected as shown. With the switch open 218n enxxq 7baas 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 amp. a1pyahe i0(meter, a switch and three resistors are connected as shown. With the switch open as shown in the diia.h (0yp1epaagram 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 resjzxww(ek 0e) h:t:9qeistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistorq()wke:tz 0e9 xwh :ejs 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 h8cg g/ hq07eqrvw* sgi,* y*hshown to the right with resistg,hriq8h * gqs 7/ecw*yg*0v hances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 azfz47r-:9n6vkw 4ilz togg i+ combination series and parallel ci4nzr4 : tgv+9lfigk zo67z- wircuit 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 five identical r+*4owh2hlkgp( 4sc9ux hs (ezesistors connected in a combination series and parallel circuit to h+2le 9uchw4*s(psxg 4 k(z oha 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 a 2vbo8yywfy: q1 (+:uhzgi9sidentical. Which bulb will bov1wiy+ :(q8 g:azb 2yys9hfue 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 ammeter5pdsu xa:bch)h r:10x , a switch and three resistors are connected as showna1pr5buhs: x0 :cdh)x. 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 ammeter, a sw..r9 luk6gple aqq i5/itch and three resistors are connected as shown. With the switch open as shown in the diagram the k u.i/l6l p9qq.agr5 eammeter 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 bv5ff s a6yan1 n8cg: z4gqx+iu6 )b,gresistors are connected as shown. With the swit5 1zng f f g8g: 4vabyn)x+qc6ai,s6buch 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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