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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 elece6* p 1rj;r,sair;faxtric 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 direcseafr;*1p 6a xr; jir,tion 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 are connected in parallel, ec+ e8-lc bg bnaz75thvy)4 p0the_________each resistor40v5ba 7+8nhlgptcez y-cb )e is the same.

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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 lighttddad*2 bq u//3z4gt o c-pbo8bulb causes the filament to become white hot, while the larger wires connected to tddtoqpu3 d-c8z b*/bog42ta /he 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 are being replacedg,nsghrzh b(v:c qhw,c8m+ru sr5y:)l:7 r2a with LEDs. LED is the acronym for which one of the following choiwa78)hb(q: msncrh r::5,v g+ugl sr z,y2rh cces?

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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 crossgf ca6l3(por :-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.p f 3olc6ar:g( 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 II has twice r 8)s*u ig5z 6uye*i lgb/qkt.the diameter and twice the length of I. If I 85rkui 6.q/)i yz*ggu tebls*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 made9ilq06whwzq78b6 ml caa)1 ff of the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wai9wz66hc 1 qbf wm 70afllq8)ire 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 ao2 7 ,4cve8 bc g+gcsqrps4.oind radius 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 material because of this process?r cbvo4cei g,.pgs4sc7oq 82+

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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/28h2x xtgtdqbx9v b/as Edison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order tq/xv/x gh22x98ttbb d o 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 cylindric; li,gx 0w i4v,nsagc1al resistors are made of the same material. The length and radius of each reg ,1vl an;,swi40cigxsistor 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/k ix1mrh,fa, to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected i1k h/rfax m,,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 dirv ;*6ly a9spfvb/xp8)t5fd zagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The amm/ r * dv8s)x afflbyt;65pp9vzeter 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 qd 06+nz w k,nx ccam:-udj+m922ygzoright. The three bulbs 1, 2, and 3 - w9 mznz+2xa cuq- : c0jok2g,yd+m n6drepresented as 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 a/v:hxp sr,l cvl3(/g9cx6w fqt the right. If the current in all three resistors is equal, which of the following statements c9(wcxq,xvg f v/h:lsp/ l3r6must 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 comp-z. m1ipxfq6 6g +upmfosed of 5 idexf +f 6 miz.pm1pu-6gqntical 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 following stta2g(76ea bzv atements is NOT true concerning the simple circuvt7 a(2eazg6b it shown where resistors 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 ciykzbq3x mj 5 1,p:y3ponnected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected j,i15: qyyzp3xbm 3kpin 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 coulombs will pass through the i,- l rq1d7*b2 dljdlog p1n(szdentified resistor in 5 seconds once l p1 zj7s(1-onb,*qlldrd2 gdthe 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 circuit have the s9c/0xg6u gkdup v )0ktame resistance, whicpkgk0u g tc9)/x v0ud6h 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 +d4klsi5 /ja 6 fvdjm7current through the 6.0 Ω resistor is 1.0 A. What is the power supply +4 dm/6sa7 5fvd kjjlivoltage 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 resistov; yy*zb+ycq-( j ibkhoc ;+i.rs R1, R2, and R3 are connected in series to a battery. Suppose R1 carries a y +jh(yibyzkb;- iq;c. c*vo +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 cv 9d y qy3*l.jsrdg d,exl327nonnected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, andlx,9qd j2d n3ds3.y7rel *vyg 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 7j06x9x jagkk the maximum value of the current under97k kx0jaj 6xg 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 liuzm: hc5 ; x2s64aaewolt m6z+sxlm13 ghtbulb designed to operate at 120 volts?: s4mm 6uzxwe 3mla+; xtzsh5l1 26oca

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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 is5x/vt+ h it(wc dissipating 36 wa+w/x5h ttvc( itts of 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 marked v3xv)bqi(qt dv5zzi+q344j f"120 volt, 600 watt.” In normal uzq4bt5d v ix+j4vvz)fq (iq 33se, 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 circ5nmcqpz99qw;cd d0)yn/l3sph ( 7v rluit containiny dwq)c0zrnpl5 37v9d;ln9mqsh /(c p g 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 followi,e + wxueby,4 ac.m/ uo2fe2zbk3jn)yng equivalent resistances CANNOT be pro3oy ek+bn u.,mc4wz) /ye ,fe2ju 2xabduced 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 connu 1l0s6uuee7v ected together in different configurations. If all three resistors are used in a circuit, how many different values of 1v 6euue70usl 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 batterp(vmml2;wg r:y, 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 internal resistancw m (2pvgml;r:e 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 connected in para1nwcl b ynk1xa5q.59gllel, the equivalent rw 95c1ynqbgnalk5 x 1.esistance of 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 it has a resistance of 12Ω whfy,3hdv73m.ta4hxeoetj ; 2r en operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water frodh3.ayjtvex4,2; t7mrfe3ho m $15^{\circ}C$ 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 dissibr:-os+ s snoz4y72jmd :pmlw 72h5c m.ino;kpating 36 watt ssm-ypmi542hnklo ws727 d+.crnom: ;z:o bjs 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 13 amperes of current when connected to 12)etb-)xe+4 dz 9dfruf6d l ,fw0 volts. If the price of electricity 4t,b6rx9)e d ffzedw )f-d+l uis $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 mu b;177fagc)eoc hbq2 lch would it cost to keep a 100W lightbulb lit continuously fbabl7og qc)f2 e1c h;7or 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 throu ovonqv+)z(3xgh a lightbulb results in a power of 24.0 W 3)(xoq+vo vnz associated with the bulb. 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, f8lzm 0kj lutc8mlx*c -2yt* a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protl8jltm xcty zf2*clu *k-8 ,m0ected 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 isunk gfh1 0lqt:auz02( connected to four resistors to form a simple circuit as show ( ztguul2qa1fh0:kn0n 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 is connecto+zay )ftziawg)- l: nk( pf w:low,(5ed to four resistors to form a simple circuit as shown t( :: 5lky-z,g ff)zwta p onwwloi()+ao 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 connr.cx9 hris ,ix-a3yp:ected as shpyxih :rx3 s9r c,-i.aown. 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 anetgfnx)n n. ap84i1av+5lp*bd three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 1a. 8 n)pt+nligvn*bxfe 4ap5 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 batt ,dgv 6c*k/i(rwazn.m ery, an ideal ammeter, a switch and three resistors are connected as shown. With theni m kca/ gvw*dr(z,6. 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 the equivalenype ic16acr2n o9(t 4gt resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identicpy2ct16aerc4i9 n g (oal 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 rs 8pu,,1edcz oesistance of the circuit shown to the right with resistancesd z,pue18 so,c $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connectks9fvo4*( zjq2e0 fveb-r bo6ed in a combination serikbf69e r o*es- bqo2v0j(4zfves and 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 combinacc 0:7x0cr;rfpsa -gnmpt a:1tion series and parallel circup srat010fx :-ap:ccc;g7mr nit 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 +lx7 4cag z.8 wmnzj*tbulbs are identical. Which bulb will be the brightest?.azxl+ 7m8 gcwtj*4zn


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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 swioqw,.(+ py5 pmm nggj1tch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reaj qm 1(+gm5,pygp. wonds 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 gi;t *wawb3;h and three resistors are connected aswt ;;ga*bwi3h shown. With the 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 resx cecm 1*ht0i7g06 ceh1o 7qhwistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.hqxgiw oe0 hh 0 t7ce7611m*cc0 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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