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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, a2 y fg5r89ip9wtkg:pdhx+c+ zn electric current exists in the metal resistor connected to the battery. Which one of the following choices be9 pck92 5 +8zwr:+ xghpdgfytist 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)eyowb q)b0zc/ qt/ x, connected in parallel, the_________each resistowoxq/ e/)cy )tb q,zb0r is 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 the thinav) bi3 2xb3az filament wire of a lightbulb causes the filament to become white hot, while theb xb av2i)3z3a 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 is t 26n1bp0,m0f5cm qyu dth +awmq.r4yo he acronym for which one of the following choyw, 51qumc0nfhqo6pmb r yt m4a.+02dices?

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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 h w1ar i tuh*;3hhc+o: ww:4ylresistor has length 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 resistivity of the cylinh43h;yltaw* :1 crohiw: hw+ udrical 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. inbzm8593y hx Wire II has twice the diameter and twice thnm8zy i93 5hxbe 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 tdf.)pygh z24khe same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a f p4h)y2z dkg.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 piecb6d9z 8) qrept-r )qvoe of material is then drawn so that it is a cylinder with new length 2L. Wha)8 r pqt )9bd6oq-rzevt 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 wanovfk65/sdm : sxy *l78kj9hwlts to make a brighter light bulb. He decides to modify the filament. How should the filament of a li5mk9k87s:jv/ dh f*6wlxy o lsghtbulb 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 cylindricag:l x1izps4 sl;9q d2hl resistors are made of the same material. The length andsxh 4q2g1;pil9dz s l: 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 resistance R,)2p ui n9 +en5v7vteex are connected to a battery in the follon5+9etv)ine7x2uv pe wing 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 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 diaq6ndaq;e tn /:gram has internal resistance 10.0 kW and the ammeter has internal r6q d;nn :eq/atesistance 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 circui-atvp m/:sf: bt shown to the right. The three bulbs 1, 2, and 3 - represented as resistb/p f t:m:avs-ors 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 current in all ni)*1a,b(4hgfm (m roja*q o+zr9uzuthree resistors is equal, which of the following statements mmauh +*4 oqzbr9n(,()ig1uoma*zjr f ust 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 circuit c 0lrqjx4uj,z)g; o (fkomposed of 5 identical light bulbs and 2 flashlight cells4f0)xo k;grluzj , q(j. 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 state yks br49o0uz.ments is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equ yrb90szok.u 4al 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. Bulbq p9; a;miylc9ha(p pe33) i7 zdqcy5z X is brighter than bulb Y. qai;qcm)diy3p hy59l9e7pz p3 z( ;ca 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 t nc1b0 3f2vkqxhe identified resistor in 5 seconds once the circuit was closed0c kqfnxv1 3b2?


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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 kp d)z0km2lf v6r; db. in the following simple circuit have the same resistancpzmd0)vdk f. lk62;bre, 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, kf. 0pza a vca9/-cr5zthe current through the 6.0 Ω resistor is 1.0 A. What is the r p/5v f aza-k9.zca0cpower 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 ag1he6*n:qoc7-y-2ndhdr yz zrvu n860wsc r ,re connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resise0h18*h6 yqodygzr,:2--zwv6r rnu 7 ccnnd stance of 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 in par6 zuph96q 4i 4sacpaa5allel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 pcaap454 96qusazhi6W. 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 voltstr0*7p maqh .amz)w y+. What is the maximum value of the current under these conditions?tmq7+ may r aw0.*pz)h

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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 operatel5ip3 9qm 7pwh at 120 vol97lhpm53 ipwqts?

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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 dissi 3rms+/2iwwr,wgus/spating 36 watts of powers,s/sr3g+ wwwmr2 ui/ ?

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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 marked "120 volt, 600 waxunxuksfgca:-g* 49z;4 j; vott.” In normal use, tuv; j;gxx*o as:kugc n-zf494he 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 //l9;jfpr/( l4 tywamjrz4 xnfollowing resistances could NOT be produced by a circuit containinn(/az wr 4jxlm tjf/r;pl9 4/yg 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 rbyqj5,z cj,o5esistors. Which of the following equivalent resistances CANNOT be produced usin, zocjjbq 55y,g 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 can be coz e3,wuo.07 s(czehca nnected together in different configurations. If.e,zs3ha (ceu70w czo 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 batteryv)d/zdrhr 5/gl v9p) d4xqp ,o, 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 of5dodvp hr/) v p l)/dqx4,grz9 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, are connected in paraqnw x *v4r*tk6llel, the equivalent resistance of the combination is 5Ω . Which of the following statement4 rnvq6 *xkt*ws 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 when ope :v ohilrd-x 4zyn(x4(wrn)b 8rating ar ()x (o4hz:bdnlxrvn iy48w-t 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 ohm resistor that eh o 8uyyq+ ew.+; hev:zf9x7eis dissipating 36 watts of p;hxweuy7e+ fhq :.ye+e 9zvo8ower?

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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 currg-jt4-aacg24c0cgf e ent when connected to 120 volts. If tcac04-gjg tf-gc24 eahe 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 4w/. bbcg3khckeep a 100W lightbulb lit continuously for 1 year atgck /cw.hbb43 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 curren-y0 xn67rayg (mg 0qeyt of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the fnxqyygye- m 0gr60(a 7ollowing 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 computerw/,rs y*nj(7dth+l wq j4rj0g rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, 0jr(w*jl dtjh/s ,+4w7 rqygn 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 i7s7-q9 hiucbv7v0ajfour resistors to form a simple circuit as shown 9vb qsc077ahji- ivu7to 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 foub9ym5gi f. *;v epc4iu+xe, qrr resistors to form a simple circuit as shown to the right4xcbm pi,yerv +ug5; *i.q9 fe.
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 t+vo*q51seny y:r wfh-kl qc08hree resistors are connected as shown. With the switch opsv1*f+n:ry8o5 0 kq q- chywleen 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 andf ,dpod4cg3,t) bfn t y.ual-) three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readlff.cdn)aoyd btptg -)3u,,4s 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 switx9 p 5ixjwz5; 5jk3uoach and three resistors are connected as sw;zjo 9iupxxa53j 5k5hown. With the switch 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 tr(b ln d+wx*fp;u94i qq2yer6he equivalent resistance? Assume that all wires are ideal,p42ux+ nq6ebdi (;qf9w* y rlr 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 oizvy+ .72di6u2gzj szf the circuit shown to the right with resisjszzd2v.7+yii uz 6g2 tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 comvu( , :tw .i*gzjhjiz.bination series and parallel circuit to.zzi*j:vu w.,i hgj(t 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 identicalf6t-4jv wo bt(*w;j k02crmjt resistors connected in a combination series and parallel circuit to a voltage source. 2jmf4j0ctj -vr 6b ow;kwt *(t
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. Whic:1xvy)mm.vpj2vn j* c h bulb will be the brn1yp j:mmc2)v. vv*jxightest?


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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 resiqm.e*tql 2n5b*j(ou z lq/9ctl; g.gkstors are connected as shown. With the switch open as shown in tnq glq mc gkl* *bztqo.( /jl2ue59;.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,t5-hw9 xw9xxa an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the dt- h5x awxwx99iagram 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, alq48 7 km7gu9xwv45vslit az, switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.w,kqmas54 77x git8z4 9lvv lu
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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