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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 i: * okk2ra6)mqxkfl)tn the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through6ar)k )q *mtlxko2f:k 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 ared /boed lmc289 rsq4l/ connected in parallel, the_________each resistor is the 2l4 qo/m 8/bc dldes9rsame.

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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 wirehx2 i4km7ebz*ww 6wo (,j u)rp of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain 2(xiz k)owebmj,p6h4r w 7u*wmuch 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 brm p li;j3f+.weing replaced with LEDs. LED is the acronym l3;rfmi+. wpj 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 graphitejs/3l0h13)b q v+ jzix nundhv*6 c*ck 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 th)lc1qis/ uz36d njvn*+c0 vhb3x h*kje 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 I,avl:.ms4j0d54a gc zx.w 8cbc xody)I are made of the same material. Wire II has twice the diameter and twice the length of v4) z: d5 d0clo.m wyx,xas b8.4gjaccI. 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 and halbq0jeb,ly1e ,6xz7*7e a xyx2qo8t tvf the length of wire X. If wire X has a resistance of R then wire Y would have a resis1e jlz 6x8vbbx 7yayo0*eqtt,q2,e x 7tance 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 piecrlszp6,gij * j,y jst9s5mc6 *e of material is then drawn so that it is a cylinder with new length 2L. W,l*9 6 gjc irs5zysmp,s6jtj*hat 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 Thom bruog-1a4ecpyug.b 588kpvp x6* :goas Edison wants to make a brighter light bulb. He decides to modify the fipo6k8-xv gpo8b14eb.ygcu*u :gpr5 a lament. How should the filament 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 are made of the sagb8abthcja,v-c 1 /e9me material. The length and ra9cachjb,/ v -geb8ta1 dius 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 resis1 i4nj68,xwk cbr+vak tance R, are connected to a battery in the following 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 equij 1aix4w nbck8v+kr6, valent 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 diagram-fx lgjq x.t6mwl 4y*+ has internal resistance 10.0 kW and the ammeter has internal resistax4*.l tq6j x lwgy+fm-nce 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.utdjw26 v -xea.(.oew The three bulbs 1, 2, and 3 - represented as resistors in the dieet 2o-d6.a (. wjuxvwagram
- 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 c ftk:*ofd t((fircuit at the right. If the current in all three resistors is equal, which of (d*ftt :f(of kthe 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 circuit compostf /i /h:oou5ghzdg, 4z0h)eped of 5 identical light bulbi z)e/zhogt4g ,fo: /du5hph0 s 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 statementse ji i3jfo rpw (0wcnq5(bu6 a.+-8myx is NOT true concerning the simple circuit shown where reewba.q ( -r ij+muj68 (fopnwx0icy35sistors R1, 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 connect 6qqm;+ 6yyrfted in series 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 to the same battery, which one of the y6qrq tm;6 yf+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 identifi v4fdngkuve(8mko1ksgm po4 rp(q) +14g c9q1ed resistor in 5 seconds once the cik)ucov oe(4 dg(1g n1 g mvq4fspqp894+krm1krcuit 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 +o*7aqd7mcxl+ ;lx2o e; qrwpsimple circuit have the same resistance, whichxo7p++qlox;2 7mqe rc;*al wd 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 al-t+x ycj r6(zcl ;s)6.0 Ω resistor is 1.0 A. What is the power tcclzas6 -r; (l x+yj)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 conne0qs0kexlykc0 - wecwq-3yi 3+ cted in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. What is tyiqek-k cs-q3 w+0yw03 el0xc he 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 batyh86n7ku.. hxu og *8mnzohgrw7)v. etery. Suppose R1 has 2V across * u.whge ozr.yvn u7.k)mon8hx876hg 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 the maximbs l-khc*fx0(um val*(cl- bf0ksx hue 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 a 60 watt lightbulb designed to operate 8adi mig 6)ft7 xuo4z+*j 6l glz*jnk-at 120 volts)*knojzdi4 *6fu atl+izxg7 m 6-ljg8?

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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 rlt 5i*)s r9z uav866lx+ut q uzj8o8tmesistor that is dissipating 36 watts of power?a +t 9 5)ztlu86qvuomzs8li6jt8 x*ur

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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 clothesne:z)8t4 kim -dr5fvn is marked "120 volt, 600 watt.” In normal use, the current idnr)tmn5f 4kv -zei :8n 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 resis.9pxw6 mqh*ak m)ib5f tances could NOT be produced by a circuit containing only th 6*mkaxmp5bw9hqf )i.ree 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 of the following equioxu bftev0q3: qap*m) *4n w-mvalent resistances CANNOT be produced using all three resistors *x mvot*0mw- pu43n aqfeqb:)?

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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 differev6dgphvq27p.hawudth5z /w r/ /f6l :nt values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resista/ dp6v 2w/:qfvz .6rp/whtd7gu5lha hnce 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)ilxi -- qcny5yl v-8y resistor is connected to 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 battery? Assume the intny ix 8l i-vl)5qy-c-yernal 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, having7ovf sao ua62b) r:y:g resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of v)a7 gruo6:y2a:fbos 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 ityheo:3 se4v 0+2 su;prnja- eyf ms56qodx (8t has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water fetu6 5nymqdfx4o ejs 0osea(; -h 8+2:rs3yvprom $15^{\circ}C$ 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 is dissipating 0d; .zagd /jue36 wat0jduaz/;dge .ts 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 gl*60j *8ub rml6npy y13 amperes of current when connected to 120 volts. If the price of electnr m*j*6 b upllg80y6yricity 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 howe9f cz w75bg 8narctm-5j8.yx much would it cost to keep a 100W lightbulb lit continuouslyxf5c y9 85m8bw-r7jca ezt.ng for 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 thy-b4 bhogk7 pl(ly8u*ew5g- e)cmo:x rough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represent:yxplwcge5kg e-lb8)u7h(-4om b * o ys 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 famiq otrv6vp;*vt,dup 61 ly of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged int6v;vpv1r* t,qputd 6oo 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 fouzz 42t(jdyc. zr resistors to form a simple circuit as shd(z4c.jtzy z2 own 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 i, )q9 i+vbjvml8fcj 7ms connected to four resistors to form a simple circuit as shown to the r)jli,m mj9v+ 8q7cfvbight.
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 zd mtq oz6i) 4-k;pwz(g8fa1sand three resistors are connected as shown. With the switch open as spzq6gf t-ia8;1ozk)z m4 s( dwhown 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 and three resistors a2 s1udtln1pt l y-+s7are connected as shown. With the switch open as shown in thu sl lp1adt7ns2yt+-1 e 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 resisc*lx.kku)(p cxcc -m6 tors are connected as shown. With the u*6.mxplxk c ckc)-( cswitch 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 tf;jzqanm*u97u ;z 7e ttn .x4ohe right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no intezqmo.f a77u;4;jt n xzu* et9nrnal 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 circuit shown s- i5gw4qk9n dto the right with res 4 w9nqsd-5ikgistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 mir/qx8/jo9f2 ,on flidentical resistors connected in a combination series and parallel circuit to aql9rmo x8/f,2 on/if j 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 sholfcm(z( 1* 1ssd2k jzwws five identical resistors connected in a combination series and lsj 1kzmwds* z(c2(1 fparallel 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 identco/s3xi b-)on ww x* (m+3stsmical. Which bulb will x)n+cxb t si*/(33s-om moswwbe 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 threunf*8*f v sh4 0tfdn4ge resistors are connected as shown. With the 0f4 tvn gd ffsh8**n4uswitch 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 ideq5d ,(fp45pk bppm)f val ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 pb) p4f5,fqp5(v dmpk 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 battyy fyno2((54l qhymj pf0rm(-hdkqzd .p* i55ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammem0 p(dk(-5y5ydoq.fi y p5hh (z4f*rnl q2ymjter 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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