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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 i.c cb*fl97 sv:zthk0on the metal resistor connected to the battery. Which one of the following choices best describes the directi9:h.oc tkl * zfbsv70con 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________sq. h 4zxn9j qus4d46u0j 900p wfbdhz_each resistor wdzqs .u9n 904hhjjpz6 0xb qfud4 s04is 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 thg mvynoo +9a 9t,m/)efe thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becau o)fget,m9m o9/nvy a+se

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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 housxwbi( zs*2;vl ehold lights are being replaced with LEDs. LED is the avlw 2is(zbx *;cronym 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 length L and cross-sehpg/e:pr * :uvo78y pkctional area A. It is to be placed into a circuit, but it f/ o:p*p p:8ygvku h7reirst 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 w)hhc g kg,84htwice the diameter and twice the lenghh )4kch wg8g,th 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 l+-y0/ frb 6gvicn(p qy+ z+hosame material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire vgo0q + br/- flhic+6 p(+ynzyY 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 pieceuux,6vcm vf2. of material is then drawn so that it is a cylinder with new length 2L. What happens to the reu ,xcm2vufv6 .sistance 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 brij;x)yt,5fe9 aq1zfl s ghter light bulb. He decides to modify the filament. How should the filament of a lightbulb be 5j)xeatf9fl 1zys , q;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 the same material. The pvh 1l9*m hrvk9 ar:gg0b4o b5length and radius of each resi 4 9vh09lmvbagrpko1*bh5rg : stor 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 tlysvq( pf ,.o g/:j.txo 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 resijq.x: , /o(.fpystgl vstor.” 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 circui:zp+*d3q fl qd)opx:ut diagram has internal resistance 10pu+ l* xqpq d:fo:z)d3.0 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 compd+n/w a3 k0xnzound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors izd a+/3w nk0xnn 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 p0pb v*i*)zymi r9; dzq9 3(mn)ttgmi right. If the current in all three resistors is equal, which o*m0m3)r nbi(mg9i i)9t pzptqd *yz v;f 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 simple electric+n 2a vo08zalv circuit composed of 5 idena+v2 l nvo8z0atical 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 foll* yfqdk:pw; dlg kf mbw(n,14 d7lpp(-owing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resislk;f :nlg( pp-bqk7w1fywpm4d,d(d *tances?


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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 an 4hl;lonvk8z )k8 l)emdY are connected in series to a battery. Bulb X is brighter than bulb Ylhm )ov;le 48l )z8nkk. 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 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 iqq1oqtb8l. fz) om3d,n 5 seconds once the1)l ,8.qoz m qo3fbdqt 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 the following simple ciri4 v a*(7b7wh,xhomtqcuit have the same resistance, which would di7xhmho w vib,q*7(t 4assipate 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 accompanvpxh)ws*)q ;iying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltag)v swiq);hxp* e 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 se34ac00 ayhvh a:b pqlu2ztd 3 7am4gh;ries 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 po a4avchya4;a p7qd3h2 l0m3b:h0tguzwer. 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 differenlkal(y9) l-y mjg4)qgt resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1-)l 4(lyyjm) akg9qgl 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 coil is rated 1jz-: ;us ukx,db9ke01svtk+q 200 watts and 120 volts. What is the maximum valueesu s,q kbxt0;v9k kudj- 1:+z of 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 desig*g1f6aiox4c4 m if bx7ned to operate at 120 6fo4afmb icig4 1 x7*xvolts?

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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 dissipatin geus9) 6ebkk5g 36 wa) e956 gkubsketts 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 c 2(r(au 7pkogvrnnm(9z:jxj6lothes is marked "120 volt, 600 watt.” In normal use, the current izrg67ku nvjr( 9mx(oaj(n p2:n 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 circuitb jdd98+2h 8siimri7 j containing only three identical ri8 bhj+d 29i8js7mid6Ω 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 equivale6h1tmb8e7 lyo nt resistances CANNOT be produced using allty87m be 61hlo 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-3xgx nht444(j)/isf wlpyj i of different values can be connected together in different configurations.4/yl) fw4hisjp x4itn -x3g j( 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 a wld/b..oj) w2 irar1 tbattery, 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 internal resistance of the battery r. 1)i2ab w/lrtoj.dw 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, are connectedch syv)66qr)x 1ukd* s:yg8s c in parallel, the equivalent resistance of the combination is 5Ω . Which of the following stateme8 1*kcrsuyg)hs6 svd)c:y q 6xnts 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 h zb3eg:hyh vw-0r,8ysas a resistance of 12Ω when operating at 10h- s,y: w8y 3rzgevbh20 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 ohm resistor that wx657 4zn s ixty/zqu2is dissipating 36 watts of powezyx5tx/u 62zw i n74qsr?

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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 heatel xy,*e m+)dfes2 989qwxyoeo r draws 13 amperes of current when connected to 120 volts. If the price of elo+yxo s fe8*dle9x9w ym)e,q2ectricity 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 100W lbw n* wperypac)- )*g.ightbulb lit continuously for 1 year *pcw.r*g)byw)- eap n 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 lig bxqb.4ohh g: z:2wm0u:1 jkuxhtbulb results in a power of 24.0 W associated with t kq1jux:om02 b4h: wuz b.xg:hhe 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 rated at 500 watts in +ctj/7 e9 abce+n,yjsa 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximces/+ny+7 cj ajbe9 t,um 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)t5; t2 2srwy0urearf four resistors to form a simple circuit as shown to the right.tt5e )yur; sr02fwr a2
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 reu9 5zrhih,j f1sistors to form a simple circuit as srz15if huh,9jhown 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 switch and thr7lj1levm gm( ;ee resistors are connected as shown. With the switch;(m m 7ll1gevj 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 are:s466wlr1oizj k .loz70of vhv r;w0f connected as shown. With the switch open as shown in the diagram the ammovzl0i6:l;wozo7wf6 hk j1 r0v r4.fseter 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 switch and three1h.tv j7qzhh4 z-dyx , resistors are connected as shown. With the switch open as shown z.q,1vdhjzht -h47 x yin 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 jgpqv97v2b:g3ngjg /the equivalent resistance? Assume that all wires are ideal, the battery has no internajb93j:gqg2 7n/pg vgv l 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 ;)-tj7rsoo v qpczr;*circuit shown to the right with resij-; ;qpr )sz7trovco*stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 eurt/uhki sf29- 4bn7connected in a combination series and parallel circuit to a voltag4u2u ri -bnes 9f7kth/e 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 stnl27hq y: /upl/ 5bbfive identical resistors connected in a combination series and parallel circuit to a volta tuy7/:lnqs p2bh5 /blge 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 identical. /xo-mc0f3rc )flu l(x Which bulb will be the brigfuclmxx0 /)-c(f l3 orhtest?


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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 t0it wuj1 22rfuscl 1m5hree resistors are connected as shown. With the switch open as shown in the diagram the ammet wc1 f2ls12tju u05rmier 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, 9,lo8a c,jyg ra switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampero,l89 ryc,gj aes.
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 resistors are con+q vwt5+k+ypv)pap-qor 7 u0znected as shown. With the switch opu y+p -p5awqpr+)k vz+0qov7ten 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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  • 姓名:游客(未登录)
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    总分:50分 及格:30分 时间:不限时
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