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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 elw*a/i-lw gu ,.8gk ixzeq6kn 2ectric 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 thra6.z wixn8e2wkk q-li / ,*gugough 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 connected6lcbi ceq+* c, 09rup4muxqt3 in parallel, the_________each resistor is the same.4*uciqu 39c lct +repxb6mq,0

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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 through8 luqet:6,jqjhybi+ b7kq 2,v fa .8qe the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb req 27bei+8 eq8jut, hkj,qlv: fb y.6aqmain 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 rex +c1rtolv*en h4cb+/placed with LEDs. LED is the acronym for wc+x1/4be*cvnhr lot+hich 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-s7ut 7*wtalt:0 xuq8gpectional 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 oldl80xpu: *wqugtt7a7 t 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 II has twice the t68 iq(tcoywnd 01y;xdiameter and tycx;w 61y80iqdot t(nwice the 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 7oi10+ywsq rx oe0;fhdiameter and half the length of wire X. If wire X hasq+ 0h eo0w1 fix7yros; 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 r7vqnrk+je* 7u . This piece of material is then drawn so that it iuv reqj7 7n+*ks a cylinder 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 ape.8ix3 )jo);hz fm2rt3a vkn brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order t8 .ihe2t);frjk )z3avpnmx3oo 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 matei6sse5-9irn orial. The length and radius of 9eiiso5n- 6rs 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 connegj)efu7fzqi4xkt+0 j 7lh d;(cted 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 equivalent resistance of this arrangement of four resistqg)xt7l(+h e0;fjd kji4 z u7fors?

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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 acco( yupe zdu,w;o1j:q8wmpanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter r ;1y(wpewo:uqd,8 zjueading 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 slyz.i0u (nv j de08k(9cno m(compound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diai (kej(9ovm zd.un(ns l800ycgram
- 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 circukeh mf*(h9* uez:o by+it at the right. If the current in all threeu o *e(e9km+y*z:hfhb resistors 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 circuit composed of ;rysm 87f kxx.dn4fz8 5 identical light bulbzx .mf;d xnf74s88rkys 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 NOTm hc;kzvo6e/5 true concerning the simple circuit shown where resistorszck65/;evmho 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 connected in se-0c/fndr7ptp+( , ttw9r hmn uries 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 following choices best f 9,hn0p7(/nm c-tw udpt r+rtrepresents 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 zz1v sdil (d px8(o0x 0q6u.9. oqajwt in 5 seconds once the circuiud.v8q6tos0 a1w(l d x9ox ( pjz0q.zit 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 circuit h k2 j/xbzh s*nckp9i-8ave the same resistance, which /- 29zciskb 8kjh* pnxwould 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 diagrahgt+exn 8bj3 +m, the current through the 6.0 Ω resistor is 1.0 A. Whh +xb+tj 3eng8at 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 Rxf;m:0oyx-* s1pof zcahfm 2 23 are connected in series to a battery. Suppose R1 zxo:20f *x cohm;1 - ymfsf2pacarries a current of 2.0 A, R2 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 connected in pcm()3; tv qpc.1wej0g+. ng u5dmkszparallel to a battery. Suppose R1 has 2V across it, R2 .eg 3v.+wndu mg;01sqc)t kjcmpz5(p = 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 ilyo;p,f4 e1h ts rated 1200 watts and 120 volts. What is the maximum value of the current u1t eylf;4p, honder 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 u9wrg2h;mlp .7,ycz c g.sy9c a 60 watt lightbulb designed to operate at 120 volc pcr7u9gzm,;yg.clyw sh9 .2ts?

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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 4njjm jgn/a xss 4u1/fi+dfcc-9;: ouflows through a 4 ohm resistor that is dissipating 36 watts of pon 4/1 n;9mg jc/sjuoisx+fjc:4ad u-f wer?

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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 *2+d 4+xy mmy v2zympeused to press clothes is marked "120 volt, 600 watt.” In normal use, them p+d 4y*vemzy2 2xmy+ current 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 could NOT qh(a0vrsgg +z* 8g pl)be produced by a circuit containing only three idev(q 8a+rl s0zggp)*g hntical 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 fol*1yhldm5o9n tt0b xwev .m**qlowing equivalent resistances CANNOT be prmx5ylqhtobv.m 0nt*e1 * *9 dwoduced 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 resistors hp;y0rcytq) *of different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different vyyc)tq0h;p r*alues 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 battery, n 8zfkyah. h97hrvt;b v9 r-i4a total power P is dissipated in the circuit. How much total power is dissipated in a circuit i-.rfr9av; 4hkny7vbhih t89zf 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 resisto)d,x.x3 ai( tyrtz y3trs, having resistance R1 and R2, are connected in parallel, the equivalent resistance of t3tx,a r tyd)yiz(t3.x he 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 3k, ( s joj8 ;rffobm54utwuu)that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would tfujjum f(w; ks5, )4obo38rtuake 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 that is ddrhy8gm t c);w:8p:lnissipating 36 watts ofgw:: 8rt)8l n;h pydcm 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 amperes of current when connected to uk*/dq)e/* zjep/9h( vyx3qaq5bxj o120 volts. If the p/5*oyd9(*k)qqqvj3 e/ax/ph bu xzjerice 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 0z*x -esn:5ug:rqexk how much would it cost to keep a 100W lightbulb lit continuously for 1 year at a rate of 5zgq r*ku 0-exen::sx $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 of 2g+bfm, czgd4 ()q0e aq4.0 W associated with the bulb. Which one of the following choices best representc+)baqqz,0f(de 4gmg s 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 compuy7s th.c g*04dfh0uppter rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 cpfs7 p*gd0u.0yth4 hampere 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 a simple cb/j*d 2e.enj mircuit as shown to the rige2*.e/nbjm d jht.
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 rebv( e( *wi)h wzprad372qu ,susistors to form a simple circuit as sh wp3d e)* v sawq,buh2iu(zr(7own 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 sh ig(u(c t7a4pwitch and three resistors are connected htu4i( p(7agcas 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, an ideal w*0 6juxx ;mfs-rl.73jb*i 3rq akkelammeter, a switch and three resistors are connected as shown. With the switch ope-a.e7*bjrku6ir * fm w l;x x0s3jklq3n 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 ideal ammeter, a switch and three 26c ,keob8*5tn eyofd resistors are connected as shown. With the switch open as shown in the diag e, 86o25*cnfket odybram 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 t2kw tgae )bu f,3q)dp,he right, what is the equivalent resistance? Assume that allqpt b3a )ke,f2,d g)wu wires are 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 tw8 ule r7m 32ysog:fw-he circuit shown to the right with resistance uywl :sm 87f23geor-ws $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 l34ug8+ 4ynn o3ykbwe-fsys(p jag7+ connected in a combination series and parns4jue+bygpfyg3o an7 +4w( ly-sk 83allel 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 show 3ok*.bar)q.s oi hwo5s five identical resistors connected in a combinatioow hb5rao.. si*)3kqon 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 bub2m 557qqzs uolbs are identical. Which bulsuz q o2q75bm5b will be 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 ary(m6a my+9 ,pi gpf1j-)tz qqqg.tjz-e connected as shown. With the switch open as shown in the diagram the ammetemg.q zptmjz q+, fjaiq19y)ypgt6--(r 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, a bttl i7mv7re887fgv) n ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the dia 7b7mtteri8fvl g) 78vgram 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 swit 4(sf 9z0fn(nded fh5v+2zxw fwyl19dch and three resistors are connected as shown. With the switch open as shown in the diagram the w59(nh+l1 4z2xyewd 9fzfvsffdn0( dammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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