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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 tc;y pm+sy/jc 2he 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 through the interior of the resistor?ys+ccjy2/; m p


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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 resistors5lb6i v/fv0up are connected in parallel, the_________each resistor is the same.0lbpvi /v 5fu6

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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 a lightbulb ;.rh5pjlw) j4:jqznjw.tzt6 causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. T;zjj qwl:6 n4hj.jp.rt5) wtzhis 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 i7i.fzsn h. xqm;nt 0,hs the acronym for qtnn x0,fm .;h7zs i.hwhich 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-sectional af;gf/uw;mzx cwa3-v .xd s. ;wrea A. It is to be placed into a circuit, but it first max;/; fcw vudw-3wgmz xsf..;ust 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 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 l xhoa :ju 9;a4qb g671aw(ftsII has twice the diameter and twice th7g j1:a4 wsx(q6 ohalbtf ;9uae 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 hagerbvk6 p 46 (fkey:*is twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistee(pb* 4 ik6: yg6vrfkance 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 rtwquys9cz86 0adius 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 matey6zq89 wt c0surial 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 decides x z fnvz2zpdo-)uf2nx4m z0.(w5iqw 3 to modify the filament. How should the filament of a lightbulb be modified in order to make the u2 i0dz(54q3m)zo- v w2pwznf.zxxfnlightbulb 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. Tm ci2*7-crxndhe length and radius of each resistor i-d cm*n r27xics:
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)gamw242 f-ixhm lr0d in the following way4g0a)hwmi 2xr-ld f2m: “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 accompany(n, 7*cmf4d6sys e l8f+y s0ck)cc cjhing circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1m c,sfl*yedyfhcs )(8 n 06s+4cj7 ckc.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 th *kixv)0 aw6id h14fn5gjrli, e right. The three bulbs 1, 2, and 3 - represented as resistors in the dia adln*iifvi)5 0k,grh6jx 4w1gram
- 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 *ft6u vgt*vib1i j .0bthe current in all three resistors i1tvbf ii u b*.*gtv60js 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 electri )dzl9av*n rt5c circuit composed of 5 idv9 n )*5trdazlentical light 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 folllj10vj 7weri5kzr a 13 poz)3uowing statements is NOT true concerning the simple circuit shown where resistors) uv pkeoj5 1103i7zwraljzr3 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 series to a bccb.ph:n e0, tattery. 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 fc,: teph .0nbcollowing 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 identified resiste)/+sf nfj q:jor in 5 seconds+ )j/ejq:sn ff 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 4bsfn( 1)2t9ituff wgref6nn8 k5 j1z9 u; xkhthe following simple circuit have the same resistance, which would dissh1zf9nr1w6nk)n8i25fgs u; tbft9 k ( f4e xujipate 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, w,vsq rv 20hz.the current through the 6.0 Ω resistor is 1.0 A. What is the power zq 2vr.0hs ,vwsupply 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 ilyisp65 eh+k +n series to a battery. Suppose R1 carries a current of+lp56ihe+k y s 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 w p.6nv *r4ticsp.37 coup1 bkare connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current i pkuis4b7cr*6wc top 1p3.v .nn 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 wattsy5tiztyw 27tk1)h s9 z*ymj 6h and 120 volts. What is the maximum value of the current under they95*t2j t hiz1k)s7why6myt zse 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 desi0iu*9s3qk +lt roi he9gned to operate at 120 v30si*oi r9qtk+ule h9olts?

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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 t. 2)aj yn0l2poyil:bbj po,+zhrough a 4 ohm resistor that is dissipating 36 watts of power?blao)j:,jz+ p 22oi0 . npbyly

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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 pre:+* 0ychxtw r) 6woysmss clothes is marked "120 volt, 600 watt.” In normal use, ty+hwytwx*o:r m 60 sc)he 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 produchd7 r53nx.hawn* +csd0uj0 nz) js1kqed by a circuit containing only0zhs7n5k d*j.+n n )jhxqduc1was03r 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. Whic kf yrmg91olk-2m:cu 1h of the following equivalent resistances -fygko ckr129:1 mulmCANNOT 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 resistors of different values can be connecte5,palbd ctm -m 41fbtoo-dwov v0u37/ d together in different configurations. If all three resistors are used in a circuit, how maufm tovl/-oc 1 o4d3 p-,m5bbv 07tdwany 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 battery, a total power P is1h 7-yh pwrztfx+g:d / dissipated in the circuit. How much total power is dissipated in a circuirh +d-zgxh:7p/1 tywft if 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 resistors, having resist: /ionp : +p4kmbx3z(ig81k ,dss mydsance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω .: +:( ksi 1sdxokp84/y dzbm,pig 3nsm 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 ofgicv xt6zjektt f,4ye r:- 2-: 12Ω when operating at 120 volts. What is the minimum a t2t 4t::-,-zgcvf jykxire6emount of time that it 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 current flows through a 4 ohm resistor that is dissipating y.be4cjm,p n,*t/ sbu 36 watts of p c.bt *bns4/, jpue,myower?

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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 drawkxq8.z03. ,ncgcgs k is 13 amperes of current when connected to 120 volts. If the pri gk.xzkqcs0i3, .8 gncce 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 lightbulwu;;q ehegrx5-vg+i7b lit continuously for 1 year ve ew x5- rg;uq+ih7g;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 pow+d+e sgg;gl:rer of 24.0 W associated with the :+dregg;l+sgbulb. 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 of six owns a computeftkrf kl 4(m .)tndx.j;b u(w:r 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 co .f(l;( .)4r ktfu:kjxdmn wbtmputers 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 battse o3(e7s8 wtncy )b-jery is connected to four resistors to form a simple circuit as shown to the synbcwj-8 eso t7 )3e(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 cjk8 cuap, e8 cl6nha19ircuit as , lnp618aak c ehj9cu8shown 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 are ct .tjyupm0 o(k.n09 ; asyv2n 84lybhionne b89ys hnjo4 l.y;0k.mni2y avu0p(ttcted as 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 ammeter, a switch and three resisvevmf n)l0b9ou( w0m 8tors are connected as shown. With the switch open(m n0809bmu vlvwofe) 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 resistors areln7pu;n vb,41 yaf o o;2rjp 16uzrzb( connected as shown. With the switch open as shown in the diagram the ammeter rea2 u14;nrppz 6al(;f1jnooybv7,rbuzds 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 rig l,n5myirm(v mbb 4x+*ht, what is the equivalent resistance? Assume that *lxyn 45mmr+ bb i(,mvall 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 circuit shown to the right with n b8 l y:p3 lxws01y1svsm,8p,gqg:vs resistanbvs8p81 0 n:wxgys,sqslv :lm13py g,ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combinatie;ilw e :ih73lon series and parallel circuit to a voltage source.i h:;le7wi3el
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 shv s-b(j /0-myhzj/i c0 )4rooxpeo- odows five identical resistors connected in a combination series ajo0ed (/ vo i0rh-zx-o-p ysj ocb/4m)nd 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 q- akanyc8k;x0o/wn . lnq n5-diagram, all of the bulbs are identical. Which bulb nnko;--n.n0x qw5 c/ayl8qakwill 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 resisbrh: ) 3q nz3qng vi*1duc8t(ntors are connected as shown. With the switch open as shown in the diagram th dc1n )(g3q q3z8n:hituvrn*be 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 resistors are conniibtw;mkt +y40 os:g bs,)+nbected as shown. With the switch open as shown in the diagram the ammeter rea os)si4 ,g+;tw itb:knbbm+0y ds 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 battept2p)zk5ae x19 jan*hry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram t *tapn2kp h za1xe9)5jhe ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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