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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 r7)ew2dap4)oce0 g: o8cqqwaresistor connected to the battery. Which one of the following choicoeeqp))a 2gcd:wao0 4wrcq8 7es best 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 connected in parallel, the_________eachh iok*;dz- bq:.iskui:p 3d .u resistor diqpk . d bo3u.*hiisuz-;::kis 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 thin filamen 3 abbdc 0mwty+)d-tc6r5 f1rvt wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulyb+d r -t1wd0)v6m af53trccbb 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 L64l3ylhy+fnp7p/rl : r6nqn l,giv h9 EDs. LED is the acronym/369,ll7g:niy+qrl 6nphry n p4hvl f 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 graphiq(4n ub z0ci6-1/hjvqr/nho cto3)xd te resistor 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 retdvcb-0 /n1hc6uhr x(4iq/z qonj )3osistivity 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. Wirix-4vt g5 7g+s-kh zlte II has twice the diameter and twice the leng4hxzlgtv+ ktg-7 si- 5th 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 same material but has twice the diavdt 7i7n(v g-7/esgaj meter and half the length of wire X. If wire X has a resistance of R then wire Y would have a ri7 n ve (7gjtgv/a7-dsesistance 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 piel;z)e: qu ;lixaa7( agce of material is then drawn so that it is a cylinder):e aixguz7(; a qal;l 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 brighter light bpfh(sxi5eh,6b: * yawulb. He decides to modify the filament. How should the filame5hefs y6*w:xph, (abint 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 are7 c/lssav 8/b -cylxw;,db;nh made of the same material. The length and radius of/adv;w;c 8s7cbl/ -h s,bynlx 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, are connected to a batterzc q39h3j3b9 2tzgvlwy in the following way: “Two resistors are connected in series. This combination of two resistors is c92 t33bq3 cz9zgvj whlonnected 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 accompa9w oq/ao5msa-0nl pd/nying circuit diagram has internal resistance 10.0 kW and the a/dn -o95l as0 pamwq/ommeter 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 circuit shown to the right. The three bulbse3 mw7fllfyp-f*: )4vmmei(b 1, 2, and 3 - represented as resistors in the diage(f le:)*p3w mby 4mlv-imf f7ram
- 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 elech5 ;k jx.miw+ntrical circuit at the right. If the current in all three resistors is equal, which 5hm+.k n; wxjiof 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 representssp lqecnqg:/*q6fx* - .wwku9 a simple electric circuit composed of 5 identicf w*se /nx gq9kwlc* q6:p.uq-al 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 tru *;y7*fcoem+la 79hs aqgx:rfe concerning the simple circuit shown where resistors R1, R2 and R3 are have equal ref asc9yqo hl7:+ 7*;mrfga*xesistances?


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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 batterygmkera1 7zh s0b91 x3d. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected e0bxd1sh37m9garz1 kin 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 w u18rf, y .tzurer/5mcill pass through the identified resistor in 5 seconds once the crm.5fctzu ,1e 8ru/yrircuit 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 cf/ c /if.n(i5oxr.p4 :oet uksircuit have the same resistance, which wo .fcs.t/iper 54 uik:n/(ooxf uld 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, the current th,; k4bpe v e9y g/lbrtteu4e9ob0p8e.rough the 6.0 Ω resistor is 1.0 A. What is 9g.eut vbp/9yb ,eo rl 8e;ekbpe 440tthe 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 R1h 2ewc8x q;kb,, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has ,bxw2c;ke8q h a resistance 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 ando m8yb*3of-0yivjx.yqy:e0 q R3 are connected in parallel to a battery. j qv0-yo :y8yxf m3q*ie0oby.Suppose R1 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 ratet7*/lb z)wm4roq*j wg d 1200 watts and 120 volts. What is the maximum value of the current under thew7 rg*)*objw/qlz m4t se 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 designed to o*p*xr ( z)nt6yz wof82st. urhperate at 120 vo yzwz xu*thpt o2rf(8.rn)s 6*lts?

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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 resist*,up2dfo qs ;nor that is dissipating 36 watts o d,o2;nfu qps*f 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 clothes is marked "120 volt, 5i/deus saw+3. )kok8w+rk zv 600 watt.” In normal use, the cuok .+e a )ss5v3ir8wkku dw/+zrrent 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 co f;mw fga2tg6+uld NOT be produced by a circuit containing only three identical 6Ω resistora +;m g2wgf6tfs?

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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 followiy.q rqs ;r:js4x)so7f ng equivalent resistances CANNOT be s rsxjrf:q47; oq). ysproduced using 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 resistors49*wg674lll t dcg xtebt+ .il of different values can be connected together in different configurations. If all three resistors are used in a circuit, how many difflg* b tle746+.lg dtwi x94ltcerent 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 t6shl .53nq ecl8v7tz ko 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 the same battev65z e3qtn.khlc s8 7lry? 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 resistancxqds94p/ ev(sk d pe5.k5+wnpe R1 and R2, are connected in parallel, the equivalent resistandk5w sppd4+ev5(.q9pk/n xse ce of the 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 b0ef4+ ttz4vkit has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to wa4t kvtf4+0b ezrm 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 9tjqw qmye4) bz. 4ub/through a 4 ohm resistor that is dissipating 36 watts of p4/ubzb ).tej9q4w ymq ower?

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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 ybplj*l/lw.,sx4 x 2szvk 6p /volts. If the price of electricitb*xy/j6z,l v/k. 2lls p 4wxpsy 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 kg s3b ls31z41fibwc+yx8rg p+ eep a 100W lightbulb lit continuously for 1 year at a rate f4b3rspz+wggxlyi+c1b 13s8 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 l7czoo; 2ld tm6ightbulb results in a power of 24.0 W associated with the bulb. Which one of the following c tom6od; l7c2zhoices 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 rkk:b4 1x)r jic6u vq sp1wqh)j-(+xzy ated 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 x1 xcuwyj+)qh1v(zj s b:qk)6pk 4ri- 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 tmv 1xd7* f*n;0x2e(hz7e m6 yneriwxsimple circuit xevzxfyw(** 1rhex7n70 m de;2i nm t6as shown 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 cir k/d8,a -nzi:og+ nwu0vdav8m cuit as / ai onv+n wmgdd:8z8 ,a0uv-kshown 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 three ru5dmw7 8 l2xlresistors are connected as shown. With the switch open as shown in the diagram the ammeter re5 7lldwr 8um2xads 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 anv 6c /yhxd0/xmmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.0 cn/xvdxh/y6
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 th d,igmx-s/ ak)ree resistors are connected as shown. With the switch open as shown , a /-sm)dxgikin 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, wn ;bdoe9p64eh hat is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all td 94p 6oh;enebhree 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 the right with m:lsid8cj(1r resisc ml(i8jd1:sr 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 co*8oowy/iuh2r9v4c4b d2 prd l mbination series and parallel circuit to82 wdlrrhdc* o/ b4vo2pu4yi9 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 fivej6(ag2pn5qje y0 b )ye identical resistors connected in a combination pj(qga en6j0e)yb25y 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 ident it1ekg912nzp ical. Which bulb will be the z 9k1 it1p2gnebrightest?


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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 :ft5na oj utvsz7p j+h-4iq g6+6hg-a switch and three resistors are connecniqtghuo46a:+p tzfj 5+ hv--ga 67 jsted as 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal batterykm;/bz/0y6f h qid2oa, an ideal ammeter, a switch and three resistors are connectz6k/o afqb0 ;md2y/ hied as shown. 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 swit0xeuqw y *4 d7hz*f(sgch and three resistors are connected as shown. With the switch open as shown in the diagram the aw0 guzf4*qys( hd7ex* mmeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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