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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 metal resistord1-sf54rh*lh7s pk ssg5 ajx1 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 the resistof5sh5-71sxhprk 4alj dg* 1ssr?


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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____v6-9vange o(c_____each resistor is the samvng9v o-(a6ec e.

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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 throurhe,t89auf,k7:g q(c( izim-imnb b 9gh the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lir( h9iq ,ku:m8b(iic 7 gaetf-bnm9, zghtbulb 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 limdyea8 :lff4v pc30z:ghts are being replaced with LEDs. LED is the acronym for which one of the followd8a e4lff:p30y cmv :zing 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 lengt4kricg-)f1 cw.hla 8fh 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 resistivi-l .1kighca wc4f8r )fty 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 madesu,q uu/zz;r7 of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has ,uqzuuz r 7;s/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 diamet/5yog7. ven tner and half the length of wire Xvyn/.tno ge75 . 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 radiw l9a fjyhk9g+t ,r1ul7y84oj us r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because + jhlfjal ,7r8wuok41gt9y9y 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 Edishrzwu gphip94jq: (dyw :nk/695-dwwon wants to make a brighter light bulb. 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 voltaw:4q9u:hg wznwdr ( ppyj9-kwd 5h i6/ge?


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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.07: Three cylindrd 9)81s-ve mm trhuh1xical resistors are made of the same material. The length and radius of each resistor -1 u) m 8srthd9mhx1evis:
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/ o fma irfm6+h4mx e)t+ x:/fzn3vna. a battery in the 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 rhe)/+: 3vrmx+f a/xannzfofm4i.t6 m esistors?

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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 h gu wu-9fm-mt+as internal resistance 10.0 kW f- m +-gm9utuwand 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 circui6 ssbqb 3j+x /uii;bfcl sp6+a +5wd*wt shown to the right. The three bulbs 1, 2, and 3 - represenuw53i qx ia s+ cd;w/j* f6blpsbsb+6+ted 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 electrical circuit at the right. If the current8.cw9 gt vc5tt in all three resistors is equal, which of the following statements mustvgt w cc98t.5t 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 electri2 b;12 f2ex8uaktsun u0w7iv vc circuit composed of 5 identical light bulbs and 2 flashlight cells. 1 x 8722sebfktin;uavvwu2u0 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 concerning the simple/3 dtbahu*47jvhds0 y circuit hdv30/ y7t* bua sh4jdshown where resistors 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 connected in series to a battery. Bulb X is bri9j* nqin/ .1a8j zbdweghter 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 whq/. *nb1zwdj9ea8 ij nat 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 i1gdkbfa1kb16)p9hag6tbkt ;7pm74 y p 5v xgtn 5 seconds once the circuit was closed? m b6 t4xp g 7gtdh;6 )ba b17a9ftpkgkv1pky51


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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 the following simplet2i4 f,j:xy 3pno1g es circuit have the same r2iy 1 fspg,nj43oex: tesistance, 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 d0 81ulm- gr;ht s3zjjziagram, the current through the 6.0 Ω resisj;sgzmz1 rj0ht -u l38tor is 1.0 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 R3 are connected33bwj rdf-izt buk 8u/+ :bwg7 c-sln* in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of / w+uf sb-k gtcw 7rud-b 3:jz8lnb3i*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 R1, R2 andR3 are connected inrev6rq:mjjd .o1 x9l * parallel to a battery. Suppose :j1lm*ro6jev d9 q.rxR1 has 2V across 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 coi .1,ojqf e d:a;abbi3tl is rated 1200 watts and 120 volts. What is the maximum value of the current under these conb, .3b:id1 j ;faaeqotditions?

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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 resistan0 fi*p ys;ni :dx1ympbw7 s2u;ce of a 60 watt lightbulb designed to operate at 120 w;n;mp*7p iu:yixsf y b2 10sdvolts?

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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 wak,w;iw ud. +ic2+mkpd tts of powerdmk+wciu,+d w.i;p2 k?

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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 cloth* bnco78k:rph :1x dzkes is marked "120 volt, 600 watt.” In normal use, the current in it *pnzk 7hc8dk b: :x1rois

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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 r,h ,.ooax+ xwv8s, vykesistances could NOT be produced by a circuit containing only threeowvh. x+,v8 ,ok s,yax 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 Ωz0tw1 tkjr 2(y resistors. Which of the following equivalent resistances CANNOT be produced using all three resistjr(wt 1z2y k0tors?

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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 can be connected together in dz .:bhp; stmlm 5;*frtifferent configurations. If all .lfm* rb:;tmpz5 ;tsh 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 a batteyovyw) 7 679q ;pcs ..2ai7 pbrtpxwdlry, 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 batteryp7qa vrlt2)i.cb s.79popw ;yw6x d7y? 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, 0k:rg4cihsj2 are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the r024 hkjg:cr siesistances 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 resiht3qnht7-v8(jtre, l j 8p. dtstance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg8.pd (tnhjeq37,tt8- lj r vht 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 op/o677qxkzcd: rl6sthrough a 4 ohm resistor that is dissipating 36 wat rpk7oq:6 7o6ls x/dczts 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 amaog bhs v02;n+peres of current when connected to 120 volt0oa+g2vnbhs ;s. If 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 wox7* +gdck/w;,u: urffzeyst 3eh3j9or6 1 zel uld it cost to keep a 100W lightbulb lit continuously sufwzoc6ere/ul yj;r x3f3,kz*: g+t97 1dhefor 1 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 results in a power of 2 3t h svk4ap)r/ 15kw+;xtdmsg4.0 W associatedd gk)as5w4hkv/;st1p m+3r x t with the bulb. Which one of the following 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 ra-j ou6 vouu*;fted at 500 watts in a 120 V- 6 u*fv;uujoo circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, 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 :pj1b*0k s7 t4kiucbdoiv 0(x is connected to four resistors to form a simple circuit as shoipv1t0 is*:uk kj( 7d 4xcobb0wn 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 resistors to form a simple circu -2v5 ylfy9 hurx 7snn8fr3i4wit as shown txnyn fyl 7hf-4uri3w5vsr298o 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 swi;0 lrsfi4i/j6-msdw wtch and three resistors are connected as shown. With the s iwsir-4l s/m 6j0w;fdwitch 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 ideal ammeter, a switch and three resistors 7t /v 8 9jq0h0fb3bip,tcanlbare connected as shown. With the switch open as shown in the diagram the ammete / 8tbb ha07v cf9i,qjnb0pt3lr 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 zyvn*i-gytcyu 3mb:bo0+i 1 z,be m9.switch and three resistors are connected as shown. With the switch o 1,cyie+y-u myb:toz*g 3.m90bnibz vpen 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 thy+c67o1lcw e;kor hft 244 gite equivalent resistance? Assume that all wires are ideal, the battery has no internaf12ot cti yl; o k6eh+4r4cw7gl 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 rez ,ej/nl i:wiim:t qv1 ,r-co9sistance of the circuit shown to the right with resistances vcjlr ew,ot1in/, i- 9:iqm: z$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 reoz-6k r *q (r:kaarssq:nu,p4mgt4e6sistors connected in a combination series and parallel circuit to am- :eraoz s qgq4st( *k,64u pkr6:ran 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 sh zvhn7-7bxth: ows five identical resistors connected in a combination series and ptnh7b7v :-hzxarallel 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 diagratj+.u gtg(uf 1m, all of the bulbs are identical. Which bulb willtj tgguu.+( 1f 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 switch a ) 4vfjdakp+)znd three resistors are connected as shown. With the switch open as sho dpzv)f j)a+4kwn 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 switch ckc13i2e 1zy7up h y(v4jxh:dand three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rea(pjdcc uh13xz v 24kihy1 ye7: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 three re3p7 hiu5oh ; nlcg)ix.sistors are connected as shown. With the switch open as shown in tn;x oplhg 7i35)icu.hhe diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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