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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 thyy,w4 nim xr-,dr6 xvulz5g:1 e 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 el4u,m y y :6-g 5zni1dr,vwxxrlectric 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 pahrlwvz lnd.- df11ym u 8+ avt2.+s*gmrallel, the_________each resistor is the sarwvhs d+ltz1.*flda+m.uygmn 1v2 8-me.

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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 fi(-b z ldy*z mbs3ub z(8wn38bilament wire of a lightbulb causes the filament to become whitewsm((d-zz8 lizybbub8*b3n 3 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 ar+ 0c3js: tp9ygmum.boe being replaced with LEDs. LED is the acronym for whicb:mg9s +03.pcotju myh 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 giaae a-7+ s+rfraphite 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 resistivity to the old resistivity of the cylindrf7a+ +e ia-rasical 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 twh,k(at f5r kz5ice the diameter and twice the,akf5 5tk rh(z 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 the same material but has twice the diameter ah6 hxiss9j m;9nd half the length of wire X. If wire X has a resistance ofhj;x m i9ss6h9 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. This pil8+ jdds)m f*.q tu2yrece of material is then drawn so that it is a cylinder w tfuj2l ys*qr+ 8m)dd.ith 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 brit9b5 b;osa ../vf 5bwnlg1kgg4ke( vbghter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified5;eb9gn(.f tsk wbkav15.bg/vol g4 b 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 cylindri:pc: xe,a;gl9jas8r c cal resistors are made of the same material. The length and radius of eac , gjxl:e8pc9;sa:ca rh 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 connectedhbe+e0;g. r xhjaid2 q(ee)t+ to a battery in the following wag;e(xe).he eq+ j+iah d t2br0y: “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 diq83jmae mk 7/tagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter readin7qk/mj3mat e 8g 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 compoqoimtt -n a9a01h 86e.b m1hmbund circuit shown to the right. The three bulbs 1, 2, and 3 - represented a9e0ati m1mt b.hq8hnamb 1o6 -s resistors 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 iv)zxa4 5z9sh/:ulx o*opztqya3+: lan all three resistor/auv3a:xz y5:lapz l*q+o4h 9 sx)tzos is equal, which 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 at right represents a simple electric cu9ja0 zdledt h0 7w50zircuit composed of 5 identical light 97 wjlzez uhd0at5d00 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 truf ceh6)4vygfnj.z 7 2ge concerning the simple circuit shown where resistors R1,cvz 76)nge f4f2yj.hg R2 and R3 are have equal 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 se yh6kzma0/:mgl5 4cacries to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other zm6 ac khgla:0m5 4cy/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 cow lu*x +ymi,/yauv 03uulombs will pass through the identified resistor in 5 seconds once the circuit was closm l,/u3xi* ywyu0+a uved?


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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 fo8 94 hq r f*pk,iwmpax 9cnl3o.ye.dk,llowing simple circuit have the same resistance, which would dissipate the greatest power?xk9 *owc,l.m3ypdi4a 8hpqe ,k .9fnr


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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 currpb3 eiqh,5/tm rxv ;yv8g+z*fent through the 6.0 Ω resisto, xpyv;5itz8+mgrq*3 fhveb/r is 1.0 A. What is the 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 R1, R2, and R3 are connected in series to a battery. kat0s)2kh/ lcSuppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W hk2kt/0 a s)lcof 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 resi( ktpd cm daphj vy;pmj+ee n 9k(rm1**8b,x0(stors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the c1m(e ,jnm*j ; h xa(0k+bym(pvrdk8cp*tp9 d eurrent 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 voh pja ; wszpe0+*psx(9lts. What is the maximum vas(+zp9x0es;wa j h*pplue 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 gl3kf/pbw:4y /x xla; a 60 watt lightbulb designed to operate at 120 voltsal kgfy/43:xxwl;b/ p ?

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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 flows0qwtp)p96mni *rmyvs6) 2maf through a 4 ohm resistor that is dissipating 36 watts ofp vaifmmw6q269*ptn ))rym s0 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 m7ljbdnd g.2ztad ) h(;arked "120 volt, 600 watt.” In normal use, the current hza. lg7) (2ntddb; djin 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 cygje ki( +d*+dould NOT be produced by a circuit containing only three identi+dj*de+ g ik(ycal 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 of the following 3gi2fey t4 6hitl e;t,equivalent resistances CANNOT be produced using all thrett,e2ei4g6li; h3fy te 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 resistorsi9l/ :kp5 2 pquyls0evbb04ky of different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be produced? 4:5/peikq yvb92lb0kp u 0sly

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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 power P is dc0vo2kou .p )zissipated in the circuit. How much total power is dissipated in a circuit if n identical r v)o.0zcokup2esistors 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, having resh;n*6i: -b nvudyr x3pe0uh0fistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following stp u uxy *nv:n;h0ih b3e0d6-rfatements 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 a7m(kbr:xigql 9-f l) j resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 k(k)xijmr b -7flg9ql:g 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 fum g-8gu61-s dz6ooayu1ed3 clows through a 4 ohm resistor that is dissipating 36 watts of pow-mgzue scu- d3oa11d6uo 68gy er?

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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 drt18 kk ie lr2w66zb:lraws 13 amperes of current when connected to 120 volts. If th 1 llbw z:86kier26trke 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 keep a 100W lightbulb lit m /i (os)*whxbcontinuously for 1 year a)(siw bmh x/o*t 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 through3m3sqlnifik2ax7 c((, i fnp1n c,x 0y a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of qf f(nmn s0(lc312 iy pika37xi,x,cn 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 wattvl6 de:e3w 4nas in a 120 V circuit. If all computers area d:4v6wen e3l plugged into a single circuit protected by a 20 ampere fuse, 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 four resistors to form ana.1ig.4k 4ez7 xb*y* lvnasx simple circuit as shown to the right. a*xin1.xansy kv 4bgz7e4*. l
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 circuity l(viyan);4f05k1x+d iy eso kb..h i as shown to the rxn kidi0.s1+a vy )bh;ye 4( 5.yioklfight.
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 batte bl3z-mtsh+ki e2 9o1ury, an ideal ammeter, a switch and three resistors are connected as shown. With the switch ok 9+sz2mi - the13uolbpen 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 ammetos ustj atmtp:+22b 33er, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammetermj :3 uop sttt+abs223 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 ideguy a(tn;7f s)blg 11p/bn) weal ammeter, a switch and three resistors are connected as shown. Wi)fbt(s/ge 7w) ngn;1 yalbpu1th 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 tef,3)5zmx(sye ti8 v vhe equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all thrsme y (iv,v3zxfe)t85ee 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 equivalenj14fs 3eb+mk mt resistance of the circuit shown to the right with resista+ekmbm4s j f31nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ok ql/b6jnxtu7fa2 ;bpq: 9f0combination series an nqa xu 2j b0;/flk97tf:qo6bpd parallel 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 resistors connected in a cdaf8mc.dupg ;+6 r4 yxombination series and parallel circuit to a voltage sourcfrcd a8ydx.m;gu 4p+6 e.
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 theic)pbqn mx:10 kl8(tf2aj n3 x bulbs are identical. Which bulb will 2f n:lib0(m)1c t8pkxnj axq3be 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 -, u+fqinzqf llbxb+gf3 bn88nnv ()4resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampn(lf8bb4u)fgx nnz3 +iq8v b +nq,lf-eres.
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 -uagsx(bh 41xammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram thx hb4sgu-xa(1e 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, zkh0l+(3 bvqzan ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diaglqz3+kh0 zbv( ram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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