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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 resistor. vv r+zcwru5( connected to the battery. Which one of the following choices best describes the direction ofr.ru v(wzv5c+ 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_________eachfvd,a.oycfyowrcf 3 3d 88 t1( resistor is the same.3 a, wd fo1fccd3o8yt(v8ry. f

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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 wiren7)d wkm- t-46mosadl of a lightbulb causes the filament to become white hot, while ts - a7mnddkw64)-ot lmhe 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. LE ;i-y5fwm4sqnh2qr da7idb (4 D is the acronym for which one of the followha4 mi4srdq y d(i2w5nq;b7 -fing 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 j()nkl*4m53xvvdfs c (4v z mlhas 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 ne5 l4sjcx(kv )fm3zn l md4v*(vw 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 IImaak hmc-2ri*u o-2w;kp 25nb has twice the diameter and twice the length of I. If I has rea;o *2cbphnm rkuwki-2 m5a- 2sistance 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 mat 2dgj 0zah:i5wmo 38fuerial but has twice the diameter and half the length of0z:2fmd a8uogj5hw 3 i wire X. 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 radius r. Thm4 8)sfqt7g1uo9a 2ab;pccn uis piece of material is then drawn so that it is a cylinderu tabg om2c ;147csun8fqp9 a) 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 brighcu3a;hk8v7z e ter light bulb. He decides to modify the filament. How should the filament 8 uv hcz7a;e3kof 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 mq-e-yp zchg48nh fcz;;zz0s*6ji u *1r3xskz ade of the same material. The length and radius of epzek6s-z;y r 3 *qcihhzux*;14s0 zc-gfj 8nzach 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 ret/vk5c8u:vit+gvh( esistance R, are connected to a battery in the following way: “Twk e(:t5viv ucg+tvh8/o 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 t 7biz-fjq)l *rj41;rn 54 0d4kdt rgra)sawhu he accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal rru; jalbgkr) zd4r*0i74rtsq5fn1adwj h -4 )esistance 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 circuit shown to the right. The three bulbs 1, 2, v : ./ellky n+(ap/zcsand 3 - represented as resistors in the diagram lel:z .k n+/va/yp(sc
- 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 u i-i4wny;r2n all three resistors is equal, which of tr4uyni 2wn ;-ihe 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 simpeeanaxdb,. b,xi+-a g;9w( pole electric circuit composed of 5 identica+x-aa ebg( an,,wpeiox d;b .9l 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 following statements is NOT true concerning the sj5y r1fn/ z4nd7) etdiimple circuit shown where resistors R1, R2 and R3 are have equfj1dz74)i5/n dntey r al 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 an(f av(oo w:*bx+ktcr l3tl;5kdY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs Xwll5ovt*(ockb rf ;kax:(3t+ 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 in , ey-q1gnj (jo5 seconds once the circ-(j1gnq,ejyo uit 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 sim7 -5rr5y l9z+y xmiaexple circuit have the same resistance, which would dissipate 57r y-xe9zlx+ ym5arithe 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, th+c sbh .c7snclw)r9n/e current through the 6.0 Ω resistor is 1.0 A. What is the pblwc crnn7 s/hc s9+.)ower 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 1jv9frq, tcz ck/6y1 guy1 ik9R1, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance v1t91 z/6ykk, y9cuigjf1cq rof 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 parallel to a bamz,-2di7gmcf )gqhrs v 7sngj0 3b3 ic+hi(g9ttery. Suppose R1 has 2Vmis,g90 zih7g - ig)dc3fgs73cr(m2+bqn hvj 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 1200 watts and 120 volts. What is th wqb9.pl:pcr u6a+flw(/y;4d x 5xz xpe maximum value of the current under these conditilu :a4cf.; pp+rl5zw 9xqxxwb6y /dp(ons?

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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 lightbul qad9) xp1qv 9/jxha.n fwd27cb designed to operate at 120 volts?q p9xwdaq1c/. h7j xv2a d9fn)

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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 36ivo+lv jguh(1cz h7 :) watts of p 1h)zj ucvl7:v o+hi(gower?

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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 watb 5pz. xc.ezy0-hz u3nt.” In normal use, the current in it i3 cxu.z 0.h5y-nz zbpes

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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 resista .1-.er9ags1 z7zt lni vjed/ances could NOT be produced by a circuit containing only-z.1td.ajignsevz r le9a1/ 7 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 resistors. Which 1dfl.8wlyl9( jh+ s6mhn/pi iof the following equivalent resistances CANNOT be produced using all yn 8l.(h9i/ijpwd+s 61llm hfthree 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 connected together in differ a 3v9 g9nk.h((aiycrzf9gdb ui;j- (cent configurations. If all three resistors are used in a circuit, how many different values of total resist9k-9j9g((z.vcr y hf d(a;cau nbi3giance 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 pow v /kuh:.,z5jfm8udedq 5jqm( h)n1tu er P is dissipated in the circuit. How much total pow8kuh mvjmqnf h.uu(:d /zt 1jq ,e55)der is dissipated in a circuit if n identical resistors are connected in series using the 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, hoc- bgj.-sp vts0a1fe t6 .ut/aving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Whichf-0svg../ja tp u6 1otcsb-et 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 bbvm8 f 8cdk/*6 *rnfuit has a resistance of 12Ω when operatirb/**6b8 c dfmu8vnkfng at 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 th,7w4ul p e;pywr3 s;a4r(f0 f+rzc oqjat is dissipating 36 watts of p ;7wp waej q r4zcy+l;(3p, rffs4r0uoower?

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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 current when connected to 120 4 mbn fu(*lbl9 a9w-kcl0 b7izvolts. If the price of (z-l ma0 l49n9*b 7bbiukfcwlelectricity 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 lightbulb lit continfpw70x zhd3 +euously 3 x0f w7dzh+pefor 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 ofz.jxpl,9,v9o, tllql 24.0 W associated ,z,olvlx.,tlqj99p lwith 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 ipoo cd6 9*eaz*+atqb7s80vp rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum n b*6tosa 8p+p*zo7qvia cd9e0 umber 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 si .1s 5bd.houi7w1 eopfmple circuit as shown to tf.dph5uiboo.1s17 e whe 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 hb/pss:b ,t*y to form a simple circuit as shown to the rigsyp,*: b/tsbh ht.
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 switw; e3 twxla/eew6u:4t o+0 coqch and three resistors are connected a wc0e;q4we altoe6wo/+:tu 3xs shown. With the switch 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, az1w+ fi+d bre m0c+zj 8 /vi0;lb8bnnpn ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in tm i8 0ec0wlf 8nb 1+dbbznv +i;p/zr+jhe diagram the ammeter 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 three resistorsqqq5-k8bly 2p-hs,ji are connected as shown. With the switch open as shown in the diagram the amqbyqp ,-hjkis 52-l8 qmeter 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 +vke faspr( lts61 v(l0(4hfe the right, what is the equivalent resistance? Assume that all wires v etpsrfl fk0 4he6sl(+(1(v aare ideal, 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 ci9uzx(mn 2sdhv- lk82arcuit shown to the right with resi8u (ksa9 2m2vl-h zndxstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connecq,enr1g/ib0jocmm (5kq rz8+cmu 4i*ted in a combination series and parallel circuit to a voltage(8qmncmc5rq0 zui4 , * gmrb+jeok1/i 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 conne b-nopjly9ea(g g,s:4v v;pm3cted in a combinationva;pyjgv :s 3,me(bl4png-9o series 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 bulbs are identical. Whicpenbot e*dxbx09 okbo:2- f:xi*p :) oh bulb will be the brightest?* bopeox2-:9np0 ofxxkd :) bit*bo: e


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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 idek9te awqb*k d;*/tly7i3 mmw/d ihz 5-al ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the aaw 7*5;- ym*ht m wbe9 dzq//kiltdik3mmeter 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 resistor ym -ov;6uwds+f.dyly2r; qco( ex2y6s are connected as shown. With the switch open as shown sl.;oy 6e+y2 ofdc;u6(q2dr-my yx wv 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 ideulg n f2t93ui1al ammeter, a switch and three resistors are connected as shown. With the switchn1iful2ut3 g 9 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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