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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 electru p6hule3bp; x :j,t:sfd8+wo ic current exists in the metal resistor connected to the +w8b: j;s :,epxlfuutd63ohpbattery. 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 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 j 2;1*hwq 0jk(mpydtdresistors are connected in parallel, the_________each resistor is th ; q(thdmpk20j 1jdy*we 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 thedfhb3g00 coehn7wox .l 7k72o thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remai72knhgxco.f7doh00 b 7l3 ew on 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 LEDs. LED is tio/z g3fd2iw6he acronym for which one of the fz ii2f3 /od6wgollowing 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 le 41kqhoe/h: 6gu8jnxms s1 x)sngth 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 newsx1g:h4q mhx1okje)u/s sn 68 length is 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 are made of the same materiarcm+db1i*bx+vlq5r .xsi r) ynf w5e :c)-n5nl. Wire II has twice the diameter and twice the length of I. If I has resistance R, I )x-dnmeqb+nxr5fiv l.nw) y+r5*ibc1s5c: rI 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 diametedvrryhv /))ir x:a2w8c +)exgr and half the len:r)r/cavi2vrdx xe g )+hy8w)gth 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 ra m z y 40bnjp7+ng.tswmi;v+:vdius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens tw+. pm4v70b ;+jsty:z ignnvm o 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 decideop no*je./ rt+s to modify the filament. How should the filament of a lightbulb be mop*+n.ot joe/r dified 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 fej hhpo0k-(yy .z-.ibuu 3i0resistors are made of the same material. The length and radius of ea.u -i hyibjz3h-o 00pyk(ef.uch 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 to a battery in the f, ya-e am /zy ,4zmffte1y8jq+ollowing way: “Two resistors are conm 1fy,+qaa4ee fmty 8z,y/jz -nected 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 accompaj9 1k(v p1oshwnying circuit diagram has internal 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 nearly: 9hspkvo 1jw (1


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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 shownw )pamszdnfky+)/ c3sn sgy* 4qm4x,8 to the right. The three bulbs 1, 2, and 3 - represented ag8 ,na+mxssd)sk q3nw*pm 4 )yz4/y cfs 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 circus 2d::6zv vxvvmnjpk) (-og f9it at the right. If the current in all three resistors is equal, which of the following statements must be tv)vjs kdvv(p92m:z6gf-x :norue?


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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 compose5xop(/ y5qddkdllj +. d of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs)ld5jo5 +dpxdk. /(q yl
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 concerning th l6wuq p/wqr m3.oeg,(e simple circuit shown where resistors R1, R2 and R3 areqm(o/g6.r wl3,u ep qw 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 series to a battery9j5 hqzll6/2n indre8. 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 the following choiceqd92z/jrll n 5hein 86s 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 identim 9 rgjg4hupjk: b.,h9fied resistor in 5 seconds once the circuit was ck9gb.gr pju9 j:hm4h, losed?


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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 m+t (lk8;6dllbac4 kd5kr n-l the following simple circuit have the same rek85 6dl4cdr(+-kn; t mllbkalsistance, 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 .2/b l ypasj:pdiagram, the current through the 6.0 Ω resistor is 1.spjy a:l/b.p 20 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 battebzjk22xlhcf6gw-/wban ) kiuw 8 7 r7/ry. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of por 7/b2 i7wgau6hnfkz/lj b2 8c)xkw-wwer. 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 R-) qn56yhsdfpf- +vw vv9lc.u1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6) vl qhd9nys v-.fv5pu+ fc-w6 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 vosf*01u vyy4rgskb+b1c6o. p a lts. What is the maximum value of thsr sy 4c v1kuo*y+.bp0 16bgafe 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 des 24xlrvxont3o,bl kg41l :m,i igned to operate at 120 vx,l , gnr24 xklomli13:4bvto olts?

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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 dis;d mf3g/q*7wv f-a.bf:tmrdq* l x3stsipating 36 watts of p.d* gq 3l* :/sbdaf x3 f-mrfwqm7v;ttower?

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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 marknmk-g4k- t/ewy0 a mw8ed "120 volt, 600 watt.” In normal use, 8t-gemkmw-/w04ka y nthe 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 bynl82rgp:o +ft a circuit containing only th lgn82 rfpo:t+ree 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 +fsxrwn5* ys.f; bd6,-amxu m Ω resistors. Which of the following equivalent resistances Cxwf-as x.ub;n ,m *5dfryms6+ ANNOT 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 different values hs*4-zop77pb. p i;1jyz ycikcan be connected together in different configuratioz4i7o;c-1 kj.hp7b yspiy p* zns. 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 i,rdcr;xkfn. j+1ul m ipy2,d 7s 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 the interpr1mc.ldi7uf,, n j 2 r;y+kdxnal 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 resi-w.t:5 x40 5nmkif9nyfrlpq6ta/ slestance R1 and R2, are connected in parallel, t nr. 05ntewis-:5l4t9la k/ fp6xqmyfhe equivalent 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 whe 667)kitnob*b ; iedo l1ms1gtn operating 71ol1itin;omgs tbke6b)d6* at 120 volts. 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 oh7j -p7z gric.am resistor that is dissipating 36 watts- ar7pc.i7gzj 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 120q 3*f;ii0sxi k volts. If the price xi;0* ifiq sk3of electricity 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 muc1 dq 0in+x9ayvh would it cost to keep a 100W lightbulb lit continuously for 1 y q 0y1+9danxivear 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 curr.c; u. c.m2r:9qrn ;gwjvuyvient of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following m.rin;c.uwy q; :j2c g9uv .vrchoices 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 :1b0gakyk: mu pse5m: a family 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 ca0 s:emaympb :gkk1 5:un 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 v5 )fyryilzeudpd4f)rmxa+0* 6 m(7fto form a simple circuit as shown to the rig6fayflu0*))fzim7d v 4 d+rp5(x rmyeht.
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 re;dxgk zylo 2/)sistors to form a simple circuit as d)x2 lyg o/k;zshown 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 i*d ooh ua je+9;)hal8gd5cm 9vdeal ammeter, a switch and three resistors are connected as shown. With the swa)ohuoad8 9+ g mlvd;c 9eh*j5itch 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an i zux w1zu725f2tp s;x h ,zqwwd;zo2x3deal ammeter, a switch and three resistors are connected u7p;sf2tww ,z;32 12xdhz ozz5qu xwxas 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 battery, a xxvb2-lj-j6/tn ks ;an ideal ammeter, a switch and three resistors are connected as shown. With the s s lk2vtx6b n-;xa-/jjwitch 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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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 ru3o93i;vfcq44/sfm wq j6 iht esistance? Assume that all wires are ideal, the battes h4 ;qfjf/uo3i 4 wqm93tv6icry has no internal 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 circuit shown to the akk2amt -nc,a0d33 p u right with resistan -2mdp0n atk,aak3 u3cces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belooak81*qa 8+wmgnz;n t)qy5m9or i pv.w shows five identical resistors connected in a combination series and parallel circuit to a vol1rai z; y)9+o.85pm q8a tqvo*wnmkgntage 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 belo53sfwizgys asc+ e5/jwe3)f0 w shows five identical resistors connected in a combination series and parallel circuit to aza3)g5cffwe/s5i s s+ew3 0j y 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 idenq2jtsb -my 5bij 369zqtical. Which bulb will be the brightej6s yzq5tqm329 bb- ijst?


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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 idea sn 1ql * 47p3m0sod.pimg)koml ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere3mkq om )1*0 s.mglsipd 4onp7s.
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 wg2hfa4(l0l (exm*f c ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagrax 2(0ll4emfgc hf*(wa m 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 occ8d iq6iec*0 2 g*0rs;xxrz resistors are connected as shown. With the switch open as shown in the diagram the ammi*sxci zecqrg 00cxd8*26 r o;eter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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