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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 elecnwja mo/l13o 8hn;o- / ut.zantric 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 throughwono j./1 ; / an-38toluzmhna 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 resistol-*ki -pufx,my65q zurs are connected in parallel, the_________each resistory m*u-xk f,pqiuz65- l 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 thinxe+ 7ezui-hmf r+ 7b1z filament wire of a lightbulb causes the filament t7hr u7-biz f+1+eme zxo 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 3 ymekb( 7x-) 1cdiz-vx+eune v(z(kv is the a1 mx ynvuc)+kvez- zvi(3e7(-b(ek xdcronym 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-se/dsq ltsub5 n5:1* rvdac k15bctional 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 ners15u *v5:d/1s btdac klbqn5 w 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 oftf*r4gd r.ek 4qt*d)y the same material. Wire II has twice the diameter and twice the letg*drf d 4yk re)*q4.tngth 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 g -5m ,dei pno:-p+)ljcxxewejh e- 32of the same material but has twice the diameter and half the length of wire -xdi j 3hw-xg)p 5 mncl-2+e:,oepjee 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. yw(w): 5 cqt7 fjgpf3dThis piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the reg7fwdfywp ):j cq3(5 tsistance 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. He qizy091ed 5km decides to modify the filament. How should the filament of a lightbulb be mz91q5 dmi yek0odified 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. dwpn0gmjv+ 1ts s0;yz2*e w7vThe length and radius of each resis v1smgyvj07*w+wtn ;sp 20z edtor 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, wz q.a )x6-vdqeach of resistance R, are connected to a battery in the following way: “Two resistors are connected in seriedz6 )w-qvaxq .s. 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 diag usc7/u 4bevg7ram has internal resistance 10.0 kW and the ammeter has internalbuuc4 s 77e/vg 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 bulbs 1, 2, h.d1wmo0rax+: gp gp, and 3 - represented as resistors in the o :,w1ghxad .rp+ 0mpgdiagram
- 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 i.j bx6+zn7 hilmy7j c(n all three resistors is equal, x(hj+jli z6cmy77n .bwhich of 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 atix x6eb1mw 9 xxi:na47 right represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. ix1:x7xa eib4wxn 6m9 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 concernie jc71xi)w0 gsng the simple circuit shown where resistors R1, R2 and R3 are have equal r 7sx )jcgiew10esistances?


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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 connecp ga* 94*:/tr bvcsd-xjvym)hted in series to a battery. Bulb X is brighter than bulb Y. Assuvt jvdpbsa/r x*9- g:my)*4 chme 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 c,ywj:jwv -5zv ,, nykioulombs will pass through the identified resistor in 5 ,yy: -j,v,j w5nwi kzv seconds once the 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 circ8swzy a 6su+,fl6 nrzh z164lmuit have the same resistan8z6ws4myz u, 6ra1h 6nfzl+lsce, 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, the current through the 6.0 g n.o.lfnk b;1 Ω resistor is 1.0 A. What is the power supply voltage. ;1k.nfnobgl 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 connectedyp iui cd)1xpm.)i+w1 in series to a battery. Suppose R1 carries a current of 2.0 A, Rpyxi)uii .c m1d1 p)+w2 has 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 andR3 are conno*ibige;( j /g a/oit9ected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 di*oiao (jb;/9/iie gg tssipates 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 coilo(qcr)msaycy5 u:3ig, ,tjd- is rated 1200 watts and 120 volts. What is the maximum value of the current under t ,qgas m jdy,(i)tocucr5y- 3:hese 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 operate at 12bkzj*. 3w lwo8/: krq35n8 j+jxelrom0 voxmw8. re3jkw qz b/5r3kjl8 +*oj lno: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 flowri2 rohyc 5jvl*r1 *i-t*zri;s through a 4 ohm resistor that is dissipating 36 watts otr*zi i*hyj25r lrvc r-*o1;i 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 presss9ftskywkr8 png0mw80 7y.b l.;un9r *ju wc3 clothes is marked "120 volt, 600 watt.” In normal use, the current in it irs rms9w.y38p;9lu*78 kjfwnk y gwb0tunc. 0s

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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 circuit-3+u0/ nqouwjerp oh -( l9utz0t;huc containing only three identical 6Ω resw0uhuh/tuz-epq(utor +c l930-no ; jistors?

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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 follo2-f84 gq:g ytby,a sgewing equivalent resistances CANNOqfyy8b e2:4,g-asgtg T be produced 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 resistor,hhxw ew3w.kz+jf *3kt.t1a ws of different values can be connected together in different configurations. If a,wk3e1zwa.jkt.x w h* htf+3wll 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 ba9 h/qk(q(dd 09po ju0w qvfwm.ttery, 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 resoqfh90u/v ( p qw9kq0jd. (wdmistance 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 resisto2h *y:mz;yv n- e3 v*qarqaaes.lw8 /vrs, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combinz:/* r-2lq evav;avqe3ny.m*h wya8sation 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 has a resistance of 12Ω475g:r tlo8o7rv mj fn when operating at 120 volts. What is the minimum amount of time that it would78:rl f t7orv m4ogn5j 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 h2- 9f+kmjp wiohm resistor that is dissipating 36 watt2-hw+fjpi 9 mks of power?

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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 aw, );sa*b s-ia2in ctkn(xi5 umperes of current when connected to 120 volts. If the price of electricity is s u,w2 -cbxnna( i)*sit a5;ik$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 lilz/c p1cp,e/yz z :sheax t )9)4euw6pt continuously f:sl9/xpwhze/ 4ea t)yz6cz)1p,peucor 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 lighci.u;hxiukz s9/y 8 uwe99vr.tbulb results in a power of 24.0 W associated wi ./.xwzhey9u; rius cvuk9 98ith 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 x3jd3cg p1e( kif) -tqof six owns a computer 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 number of the computers can be operating at the safkjx3g3 di)tpq -e1 c(metime?

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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 connected9y(t oa1)sdlo7*wiv d to four resistors to form a simple circuit avi)wtasoy9d do 7l* 1(s 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 circuilz4 w9n lonw-;t as shownlno 94wln-z; w 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 resistors ar-yrg3 hlg2ym /e connected as shown. With the swghy3mgy/-l r2 itch 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 idig9mh6xx +m hrda+9 g66jf l.jeal ammeter, a switch and three resistors are connected as shown. Wi6lh66x amfjgh 9dr xm jg+.i9+th 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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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an i.mg2c p-wjjg pkwy h 8o39a,s.deal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diao. j9haps ,y ww.83kcm2g-gjpgram 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 )opm*ti l u4y2the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all th*l)iy2omput 4ree 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 o ;,kkcvky(ahna ,ym-sawk)5-f the circuit shown to the right with resistances sk-ak 5;k,chyna w (-),amvky $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identicax9b4rq7 uu 8kal resistors connected in a combination series and park xb7 u9ruqa84allel 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 resistor5wv)w*zqmfn+oma2 j (ls sys b9yv)3+s connected in a combination sl+ 9qmv*)mssjv 2)w5fsnay3ob+wyz (eries 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 di6m 4x i7f-uaclwub,5bgnf 7i+agram, all of the bulbs are identical. Which bulb will blu 6a gif5uxnb7m+bf-w, 4 7ice 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 hipfah:i.on ;/5l e g4connected as shown. With the swi;i5f nag/4 ehoh:ipl. tch 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 battery, an i2a1 uha71pucy6y hhciq )b2+ibwu 5i5 deal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the 1u5wuay)1 2uc+ hiahb6p7i5yib hc 2qdiagram 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 +qni/qy;n+p hvyg v81switch and three resistors are connected as shown. With thn+n+ y v/qvig;h1yq 8pe 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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    总分:50分 及格:30分 时间:不限时
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