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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 t;bn :.-fwldzohh4f7dy c 31 zche metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow throwcb of-.;hnzzd1hc 47dy 3:l fugh 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 aryx8ljf(9vz s+wz:5kynr-d z (e connected in parallel, the_________each resistor is the sz(k:v (n89jylxwd z5syz+fr- ame.

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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 wire of ijr, 4,p0 r sikphdyso15)vf/a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbi rpj0sd/s fiy,4 h)k,r5v1opulb 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 replacedf34 o;- atvv,0o8if4hjazt i u with LEDs. LED is the acronym for which one of the followi3f0v8-ivf a4;o z hoajut,4ting 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 graphi cc7vgdybo/-07o*a4umu 2/ird j;ha dte 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 ncyguddh0a o- / 7v4ju obr a*cm;/2di7ew 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 of the same materi2m-w de( ulqe1 u4ui1yal. Wire II has twice the diameter and twice the length of I. e2 u(1 w1ed4lmuu- qiyIf 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 butf mp2n o5clm)s 1z+ *ew(7qvr4*uvnttk33 xr a has twice the diameter and half the length of wire X. If wire X has a ro(rcz31tm* e x*m n +k7vun)av4ltsw qrp25f3esistance 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 radiw4/i-9un nh tnus r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this hnit w/u n9n-4material 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 dec +y,sasbspqe qd04d*aa0n 9,vides to modify the filament. How should the filament of a lightbulb b , 4ys+pdssa *a ,b0vqedn09qae 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 same mamblbqrbu/9g oizh8ge:.+z99: tprl5 terial. The length and radius eh.pru5bg9 z +oblg8q9 :tzbr/:lm9iof 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 battery in,*km am liam/h04xel6 the followin6i m0h,x elm4la*kma/ g 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 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 hmg-z:hok.h. 2l.5w4ylgukgfas internal resistance g wkhzm k .yg. u2lh-f:o.l45g10.0 kW and the ammeter 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 circpgsb:k(b25tb *t0vx 8*d muzyuit shown to the right. The three bulbs 1, 2, and 3 - represented as rek 8guxs*:zydb5( pt2tm0b *vbsistors 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 nfcn gj 2wg556the right. If the current in all three resistors is equal, which of the following stgn 5cnj52w6fg atements 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 representstdbkw wg:bj8nav 9p9:,ln ) g8 a simple electric circuit composed of 5 identical light wbw a,vn: 8lp 9gkt)9gjd8bn: 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 true concerning the simple cirxe-ds p dz gy(3m5+8tak t9+hqcuit shown where resistors R1, R2e(dthp+s5-8qk xd mag 39t y+z 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 andYfnwe9sg (t+ p 4ca3p7 s,is,tv are connected in series to a battery. Bulb X is brighter than bulb Y. Assume s (s,pwg iptt +e,fn7 a49vs3call 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 comw4yj+ io8mb:ulombs will pass through the identified resistor in 5 seconds onceym4wib8 o +m:j 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 ciryisjkij u0 +oa6mzzv-6x0f1w2:y -zacuit have the same resistance, which would dissipate the greate z oy6j+x ikjzw-zy-fi0 :as a62u0m1vst 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 accompanyiya7jor/4,exe4py c9r2k 6a mhng circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. Wr a /6kyxcpohry42e9m4j7 e a,hat 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 xc9qb);rk-fq connected in series to a battery. Suppose R1 c9kc bqq- r;)fxarries 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 p / acr:)f hwlw49y,na/ yqhnu+arallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, aq9hy:4hunr ly,+)afw/a cw/ n nd 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 vw.vt8wo9inx p ) jy bfm12jp h7pr/m;(p5 p;juolts. What is the maximum value of the current b pp2py pf;tj7orjm( 1h5/unvw;ij9. p8xm)wunder 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 d6/mvl,w8 h cnsxlp5r5esigned to operate at 120 voltcsv /r ,mx lln85hp65ws?

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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 resistor that 3;wly v+9amuot-9i+mli3nse- 0fz d l is dissipating 36 watts of plo0iue; fm d-twl3 a+lns i+m399zy-vower?

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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 marh*emf.,hs7cq ked "120 volt, 600 watt.” In normal use sh.m7hc* ,eqf, the 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 be produced by a cir1vw3 tk r9/gmvcuit contai/wtmgr9v 3vk1ning only three 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 equivalenp hqfa/j;:9g3eucl.c :*gxpft resistances CANNOT be producedfj xg:fh9p qlea3g:cu ./;*pc 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 :kcnph9 ifz+i6m5u3l4dla(i w n7wa;s 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 prodh3c w54i m (l 6 ;indi7wazlu+p9:afknuced?

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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 pogj f/6 9d9jvlt7( pghower P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series uso6dv9tp7lj h(/9gg j fing 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 resistance R1 and R2, are conntv wo.2y *5cf2nki+s tp 2w*crected in parallel, the equivalent resistance o*v+rf w n2cyo 52pc wt2ikst*.f 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 ir7)8k)qt y vjst has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it8r tv)ky s7jq) would 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 currwjs.wl 5 mdis)d5(xyg1a5 op0 s,bwt :ent flows through a 4 ohm resistor that is dissipating 36 watts of powerw,5y wsw.m:dxb(tdojs)5 i1 50plags?

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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 vb(apdj j4r.q4q (r7 7ze5xp woolts. If te (zq pr (5r.jxod 7a4qpb47wjhe 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 /. ywfxdmc,k48ep8w fhow much would it cost to keep a 100W lightbulb lit continuously for 1wy,k 8d4fw/.cxme8p f 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 lightbulb results in a powehx-z2 g+ rsnr e/4d,ud3ob9 wqr of 24.0 W associated with the bulb. Which one of the following choices best represents the resi drgo49x,e h brsq+n/23u-dwz stance 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 famxkcjx 4 1b+28-be(paiqth z q,ily of 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 theck 28qb,4xbaz +jphx 1qe(ti- 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 connected1t- /os3k/g+(l0q ogfvcz+uv:opi ie0w s8wj to four resistors to form a simple circuit as shown + (:qzjuw-svg pvf/kgo 8 3ctio1/s +0liw o0eto 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 battetso- a adu(ewg26tprgx.k2 +6ry is connected to four resistors to form a simple circuit gp -6saeo26a 2 (xgdw.kttur+as shown 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, 9g97 e0 irih7swzt/vja switch and three resistors are connected as shown. With thevze g7 09i/7sh9 rijwt 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 ammeter, a switch and three resistorskbp/xvrbt e6fwust;kc/ b1hi( 7 zalp*/ 3h,7 are connected as shown. With the switch open as shown in the diagram the ammete/b* a7/khe;tx73p b(hkl1z6 b ivwtcp sru, /fr 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 switchd-lgyko 6v1r0n aq k e-)l2)ap and three resistors are connected as shown. With the switch open as shown in the diagram the ak1akopy)d 6-ver q) 0 2alnl-gmmeter 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 iove6rl3 :fmee 8.vv .xuxj80us the equivalent resistance? Assumef.ex3v8re umvuoj0.e :68vxl that all 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 the cirvkzwco a7eeb9n*p7c q943 0hbcuit shown to the right with resistances 7be99 zpn vcec3qwba *okh407$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combinat*16wz o4z w,h ;j* hjryrx:eayion series and par1;yjz ,r :4j6 wx*o zawer*hyhallel 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 be/rfi nqdw 0 )(c6i/jxclow shows five identical resistors connected in a combination series and pdwcifnr i0j)cxq6( / /arallel 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 identical. Which bunpo8tn c z:3-ge :ci2yj5l9sklb will be the n:g9lnj35ys: o82 czcite- pkbrightest?


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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 ammet45)) u g;6f pxtqaybd7wxole2 er, a switch and three resistors are connected as shown. With the switch open lpu;24 5gx7)xyt 6e)dwfoba q 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 ideal ammeter, a switch and three resistornj:*w cuwfk:; 0 : +hnt;mdmacs are connected as shown. With the:c;:mdkta0:c;jhuwnf *+ wnm 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 switch and three resistors are up:zothnsicq7 kenva;(uy m 56*u+:+connected as shown. With the switch open as shown in the diagram the ammeter reads smu*6yta+(ze o+u;:nkh 7upnc :i5v q 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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