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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 metalj7rq e0 9mh)mwpvls--*d;xw.i0fo oz resistor connected to the battery. Which one of the fol-- 90olm qsid f;0rv 7)zjh*mwopwex.lowing 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, the_____ti0px ck5z f0*____each resistor is the sacp 5ft*i 0k0zxme.

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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 wire of a lightbulb causes the filame/t.tmwf- yzy4wmi 2h2 nt to bec2y fzm-w h4/w2i.ttmyome 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 LE ueyyzmhp;3nl7b: :n: s i0e3 (w,btilDs. LED is the acronym for which oii (ptbybwn: l;: ly3enzhe703:,usmne 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 cross-sectio*tz /rft-k0lfr3n ay f8k5 nj2nal area A. It is to bn53yzr* rl2ff kt -8fka/0jnte 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 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 material. Wire II has twice the dcpl 2fkd ag44)iameter da f2c)glk44 pand 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 diamete8gym 1(gi vw ::jh5fuer and half the length of wire X. If wirg fwyu m 1:eh8i(:vjg5e 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 radius r. This piece of materialgh.uo;5j xjy3 is ;3 goxy5u hjj.then 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 brightei7yem1+p8z.oqzpj y 6 r light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in.yip1p 8ez +mo z7jy6q 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 material. The length ands2r7 84ac zelp radius ofrace7p82 zs4l 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 r kt7tp4p(0 onwx)1 j.ejz*xi gesistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connectkppj ) z1t* 4.j0wit n7xo(xeged 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 accncz fma ptnh*n;w 77/rt15e( g0z ,ywvompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mAfm7h(,0c/tan7n;zp5 wrte*v z1yw ng . 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 th0d,a1/ukbv9 n ll:pkz ree bulbs 1, 2, and 3 - represented as resistors inp1zun kldbka9v ,0:l/ 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 all ur*j grihdfsj+4j8j90b 8hw/three resistors is e*d jiwjjb hu0 9h+fjr/g84 s8rqual, 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 simk-lu 3c3 rrsd4ple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whi kr3sr u4dc3l-ch 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 *koxqj41 .c5pe1ow s;sj shz*is NOT true concerning the simple circuit shown where resis4kx w sjjoeo1s *zs51pc.*;hqtors R1, R2 and R3 are 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 conky 4ea)neydit,0 vqy.qi2/ 8 b,ykd/ ynected 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 each other to the same battery, which one of the following choices best represents what is /qe8dvay4 d2 ) .y0y,ityke,y/ nbiqkobserved?


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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 wipvu5oz6dn5 y4ad).t cll pass through the identified resistor in 5 seconds once the . yo6du4 panz5c5v dt)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 th95f ug01k1y pjyi eq,k+duxn:u1ui, fe following simple circuit have the samik yp ud1i0ux+1: 1uf keyn5j9ugfq, ,e resistance, 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 diagram, the current through the 6.0 Ω yjri3oi r 0p b8ay2 0;wbiu*b6resistor is 1.0 A. What is the po;6*p8 ab 0rjiy bryobiw0 iu32wer 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 connect207attk5itf.8p2ls/eduels p-u7v z ed 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. Whattp i 2 es0.s /vllepk8uf2 7z-t5tu7da 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, R2 andR3 are cohm6hy;3.da 6u-y,;tw mdp*m q5t+ p c ep8yuyennected in parallel to a battery. Suppose R1 has 2V acrossu+d dt- e6h mp;wya*8emqyu.htc6;3 y5 ,pmpy it, 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 inomt l-x-,s7 v -c+++, bbzjloyun f2ks rated 1200 watts and 120 volts. What is the maximum value ,nc ot+bv--7 b+nk2yojzmul,f- l +xsof 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 au1qxz n 2a2ic+t 120 volts?ixz 1n cu2a+2q

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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 isu7gcv8 :nug)j dissipating 36 watts of power8: gunuc7gv )j?

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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 presgu)5uz 1en9ces clothes is marked "120 volt, 600 watt.” In norm1)ez 5uen ugc9al 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 be produced /9luhb1x xwtw,e wy4,tczi)3by a circuit containing only thxbz u wy3,1/hxt9ci)le wtw,4 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 Ω resistors. Which of the following equivalen+tx6mfp;lkyzp 5 1 u*-3zyjg vt resistances CANNOT be produced using all three resiszutxm*v j5-1ylk63ppz fg; +ytors?

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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 vjbi8 x ;,1xvxpkq mn+t 8lh*k8alues can be connected together in different configurations. If all three resistors are used in a circuit, hop k8t, bi* x+8h1;njl kxqvxm8w 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 a battery, a total powe8)hbp x.obwt/r P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using tht xhw/pbb. )o8e 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, a*:+p2g pqr+zzeh f1dere connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is h:er2 1e*qf++z pgp zdcorrect?

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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 hp wy0v;)ml li+as a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 ;m+w)il yp0 vlkg 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 ip88v ,w)dq7 tbyx 6jg lw+b:yohm resistor that is dissipating 36 watts wj+7wbyi:tygp,qv88)xd b 6l 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 ampe 8tgv-yh3e 1o w; do7wtoxy67pt :gj:ores of current when connected to 120 volts. I;:-vt7dhop1 7to8o:egx wtwyjo3g6yf the price of 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 much would it cost to keep a 100W8derku vt/c.9,en)op lightbulb lit continuously for 1 year at un)v d/ok9etc.8p ,rea 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 ligh (t-m;fhd3n latbulb results in a power of 24.0 W associated with the bulb. Which one of the following choiclf3t md-a(; nhes 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 rated at 500 watts in gco*+,lxyf4 p 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 comp*l, pgyc+4xfo uters 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 simpr oric5jj6;/8zmo8f xgl.d9m le circuit jzi ofo8jxmmc695;d lr 8rg/.as 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 resite66./6dty(e3njpu .d jm bahstors to form a simple circuit as shown b63 ep t .hdd6/nujt(eja.m6 yto 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 resistodh6k:qlh7ebp- fri 7h;e6pm sy. v21 krs are connected as shown. With the switch open as shown in the diagram the ammetk1v-;.pi p7 :7kqsde6l2yehmb 6hf hrer 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 battery4(o q94g2p66j a0 grzht ykeoy4xhbn., 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 ampa4(4 6 02z4onkjgrq oyhxty b9ge6.hperes.
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 ammetec6)m,m wf4 mvbr, a switch and three resistors are connected as shown. With the switch open as shownm4) f b,vmw6mc 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 thetkhqk oh odxw64,5g77 equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and 5,o hgo kx wd467k7qht 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 )vyukf fk ds;7zjf39/9nr/ohthe circuit shown to the right with resistan jhn 9vf)9r3yf;o/ kdfu7 ksz/ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 a c;w* f2nrfept+s 1c) vjombination 1+ e jvp*fsfwn2t); crseries and parallel circuit 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 resistors connected in a comb;lgupt0* ek clde7k t/5h6 8esination series and paralp6 t 85e/uglks07h;d eec*kltlel 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, amgw(.:ffi j+z xo ge2*ll of the bulbs are identical. Which bulb will be the brightg*(zo: ifgwe j fm.2x+est?


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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 resisto9nqexh4: kj :81l bdahrs are connected as shown. With the switch open as xd1 qjeh4 k:8: ahnlb9shown 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 hn 3.z c,c6o )bq;jkivp ci vx+;t7qz/ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads i7 6ot;;)ckpxjcz+,.ivqv hzc qnb/ 32.0 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 rk m1 b 9w x,ti.vcze24itiuf.7esistors are connected as shown. With the sw4u2b itxw m1kczv9i,tf7..ieitch 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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