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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, anci -nzsy,.nz zu2u(;i electric current exists in the metal resistor 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 cinzziu(2 ; s-nu,. yzof 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 paraym : wvl/z-g6ullel, the_________each resistor is the same/vlgm y-w :u6z.

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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 thina2 gr7lhh6p ,d filament wire of a lightbulb causes the filament tahl,2ph 76r dgo 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 LEDs. LED c fx8yo pu4adi*.a, 8kis the acf* p, ui8a8d.xcy4 koaronym for which one 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 len5(v,knl lgbe4 m 5ka.nw(pws9gth L and cross-sectional area A. It is to be placed into a circuit, but it first muw gkm,a4.pl knl(wv9(se n55 bst 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 wirdx ,i u3l1*hlz:kr;hce II are made of the same material. Wire II has twice the diameter and twice the length of ix;,31c: kl ulhrhz d*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 twg yecy*)ygjlyq k++t/f..)xt60 t ffl ice the diameter and half the length of wire X. If t++ c xyegfttyg .)6l./ff0kjl*y)qywire 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 *t:vk8byu (miads )1bL and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens *b)si:1buk y ad8t m(vto 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.qwt)r6 guxv2- He decides to modify the filament. How shoul-x qw) gv2tru6d 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 1*cwqu1m ;skf the same material. The length andq;1fwsu1k*mc radius 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 8-s ik2yj-hxgresistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in para8 2ji-gy-hs kxllel 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 5*qp ou e 7xy5g;wo/ieresistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is u 5w;x e5eoi7qyp/ g*o1.00 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 thre/qm h;xc,km: ce bulbs 1, 2, and 3 - represented as resistors in ,/xm;hq :cmkcthe 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 thejr+u-p :hiyl t: 8hl4k right. If the current in all three resistors is equal, which of the following statements must be true?iup :-yl+8rhlt 4jkh:


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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 ri2 jogt8 yc:w xw+i(xmqyu-on 0lq6)d ,ght represents a simple electric circuit composed of 5 identical light bulbs and 2 flashy2guw j80l q(o6-nx+:wtci m, ydxoq)light 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 NO,e0xr tuanr54tjw q;*T true concerning the simple circuit shown where resistors R1, R2 and R3 are hq twnt e;u*,5ar0 rxj4ave 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 Xw 7s*vreod c-82qoc2l 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 vr2 - s7dq lw*82coceoobserved?


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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 y6n (: bujswdr7cspf;c1 *k q/resistor in 5 seconds once the circuitwcs ypqfjd;sb/ u k6*:n( 71rc 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 the follow cb9hyqt(9ex5 ing simple circuit have the same resistance, which would dissipahb5y9t( 9qexcte 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 cirvb88x+ vu9m/ prwr 7chcuit diagram, the current through the 6.0 Ω resistombwpxu7vh9/8 +r8rcv r 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 connected in series to a dc opgt tda* x8+d(7mac52-g pbattery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissi- dpd2ag5xcca p8g *mt7o+ d(tpates 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,ui0g4q.ylfiwk f 0w:3 R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V acro:f l fwk0ii.3wgqu04 yss 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 is rated 1200 watts and 120 volts. eu8 8m5aw)7 cjn.an wiWhat is the maximum value of th)8j m 8niewa.w5cun7a e 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 lightbulb27yvq-o- yqxg gxw1ku ,56tg g designed to operate at 120 vow g1gu5 q- gyo6t-,yvx7q xkg2lts?

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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 dissipatinfjoo s60od8 wk4gofw3;n6 :eu g 36 wattsoowo6 6suef4:3 8f onj0 ;gdkw 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 tca 4b ftwujs2/-* i6bkso0 rx,o press clothes is marked "120 volt, 600 watt.” In btcxk*wo6uj2-0, af b/ riss4normal 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 Ndzol83r3 i ro: cyy.0bOT be produced by a circuit conta :8 l .yzb3ydrcr3i0ooining 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 resi 47z+fvue.jl estors. Which of the following equivalent resistances CANNOT be produced using all three resistors .f7ul+vej4ze ?

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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 d5o2 solyv0; myxw: q2nifferent configurations. If all three resistors are used in a csvym y :nq02xlo2wo;5ircuit, 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 resis5sm mm7c t*: 2dhnz2ywtor 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 series using themy7ms:zm5td 2 *chnw 2 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( q-actk46 dqg, having resistance R1 and R2, are connected in parallel, the equivalent resistance of tdqqg4(akt -6 che 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 zvqs w)tmg+p,t a4sz 5hcd (89has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm qwp s,gd)zz495t8csa hm+tv (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 ohmo (yc :5s;x o9h4vfj :vhqs+vx resistor that is dissipating 36 watts of powe(cxx+s5so f;oj :y 94hvvvh:qr?

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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 draw2o ;uk,feeeg pqdhsxq45+ +8 rs 13 amperes of current when connected to 120 volts. If the price of e+fxk2hgq qd,pereu 58+; 4oselectricity 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 woult a,fmnv3r r 8,o+zcxl)s *w)hd it cost to keep a 100W lightbulb lit continuously for 1 year at a) h,*awsm x,vzto) 3crl8r +nf 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 jpb 7iktg4 di(ym8r iosg8:01of 24.0 W associated with the bulb. Which one of the fokmb184:i o( j0ptgd 7sgryi8i llowing 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 ratedn;p jd-mazs4 7 at 500 watts in a 120 V circuit. If all computernp sj zd-7;am4s 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 is connected to four resistors to form a simpl1zax2 rjakso fat3;pg0w mr84g)r l;;,z k6 uxe circuit as shown to th fkk g; pmzag0r l6tw;;a12sju,x84z)oar r3xe 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 con9qjq uc -*pw(hnected to four resistors to form a simple circuit ap-c(9*qwqhj us 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, h lj0 zp9:ujf0an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the duh9l0zjjp: 0 fiagram 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 rem.3 khp(t.ph:n6: dw5yflpyjsistors are connected as shown. With the switch open as shown in the diagram the ammeter rep5 tn:wfmkj(36: pl dhp.. hyyads 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 thr +kosak5i8jlwz c,9n) ee resistors are connected as shown. With the switch open as shown in the diagram the amme+k oj n8lszkc5, )iaw9ter 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 1 alc;ml/dxo6 qwy6u4shown to the right, what is the equivalent resistance? Assume that all wires are ix/l;c 6ma 6lud1qw o4ydeal, the battery 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 thu ljqs0c4j5b ntnrap5w.yeu2o 97 )y:e right with resis52en jtouc:)4n70 rw9ulpj say. b5yqtances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ident2gotps *jaz 7/cy31kpical resistors connected in a combination21ck 7tgy j z*opas3/p series 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 96bx,zwx yfrhhey2 1v r86 6xxconnected in a combination seriesxe xy xzb8,x296rh vh616frwy and parallel 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, all of the bf oq08j;pee x,a/xal2d n, ,vvulbs are identical. Which bulb will be nxjxq,l fp, v o8v;eea2/ad0,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 and three resistors are oa93h6bjjix * 8pvv 9mconnected as shown. With the switch open as shown in the a39m9x v6 *j8 bhviopjdiagram 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 and three re0c-zxzp kaf .1sistors are connected as sck -.fzazx1p 0hown. 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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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 resistor,2q4l,)d mnx zr2bgsks are connected as shown. With the swit4sgr,n dbl x,)m2zqk2ch 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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    总分:50分 及格:30分 时间:不限时
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