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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, an5n*ur7u +zb :eqf ;1 qi/u 4eircmxfo* electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direc*rm1f4frx z:eo unc ;+qi*be 7 /5uiqution of electron flow through 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 are conne;tqbh rf-4c+h ick13t cted in parallel, the_________each resistoi ctbhq k-tf 13hr+;c4r 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 lightbulb causes the filaj8 ygya+)3-0q gb zs4s xszde6ment to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becaus3y q 80 gsxz)a+sgj-s46dy ebze

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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 beiyhu3mu v5pvyk6r84z 6ng replaced with LEDs. LED is the acronym for which one of the following ch uum34rky8zhy5v6 6pvoices?

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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 cros6t6yf yjkx. ;9q.bl 90g plvngs-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.t6 9vxb j0ylgynk6.9 ;p.g qfl 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 wzazk;fe +99gp) hylt t+-/2r 1kj arbthe same material. Wire II has twice the diameter and twice the lewgt p+9- ylrrj/2;1 akz b)zaf+ehkt9ngth 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 twic+ 2cx6yjftoh3/m8k6n f nmx2te the diameter and half the length of wire X. oxkxf66c38+mf/ ht2nn t my2 jIf wire X has 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 xakt) n t0:3j )rijjx7length L and radius r. This piece of material is then drawn so that it is 0k)xj inta3xj)r7 j :ta 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 Edisotjmzqr .e* ( m/);nvxsldic 74n wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lin 7dx;)iq sml m .r/e4(vz*tcjghtbulb 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 same material. The lengthdr;u o,4wtg6u and radius of each resistor i,utr 6dgw 4u;os:
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 t m noo+us-pstw p,b7 naia9(+3he following way: “Two resistors are pownubt7 ,3mas- npis +o(9a +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 has internal resis*ih31l8uvhm) o4z:lu jysu7r tance 10.0 k z l*4v7uo sh8j1uylurhi)3 m:W 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 chg y -du8)fockv(xmgf95l b( )ompound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as(g5myf-8 c9dhvx ugkof))lb ( 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 .3og( 5so ta,(sppmbzat the right. If the current in all three resistors is equal, which of theo3gpm(sp 5 o, zabs.t( 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 rifa0 qjwae9p((l5b4i qght represents a simple electric circuit composed of 5 identica5 b i((fa0wp4lqjq9a el 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 stateme okorwp3tg8 9e6.8nq qv5+fhtc**xb q nts is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equa+b8 r5engfx*q*p83 k .9qw6 tqhootvcl 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 k-c a ad0wl:m j-5ai9wseries 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 b k mc:-daij95wlw -aa0attery, 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 wiue:s-mtu j 6v adj4q16ll pass through the identified resistor in 5 v6 eqau:- 4jsmj6d1 utseconds 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 the following simple circuitc c 61-9xukz4wp.w (1qcqn2nlr n5c bx have the same resx bxcz 4q n2k-16ur5c (cq.9nc p1wwnlistance, which 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 dia7*jowc*a-bt y e-ywnuns) 1e5gram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltac5n1swu7 bw jtoayy*e)-e-* n ge 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 in series to a bate 9.9 trxza iv:yxg8q0tery. Suppose R1 car.x vaye9r9x:8zig tq 0ries 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 arc1olkclc- ,aqe (m /-he connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is tl/k( lqh-,aoe1c m cc-he 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 7 azcch9*bsdfz4b6,, h1ktl t and 120 volts. What is the maximum value of the curren b,1ct ab94,6hzk l7h*tfsdcz t 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 design);rloo ds h+k8*46mk lfphyx61kwc.ned to operate at 120 vs48 ;fd+) y6kx m1lp hco lhw6kn*.orkolts?

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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 f8rt +3q 7c7jr qumxg1wlows through a 4 ohm resistor that is dissipating 36 watts of potq r cwxj7u+1r8 q3g7mwer?

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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 c4 b9gy ee s6aa/u,o5h los.7bplothes is marked "120 volt, 600 watt.” In normal use, the current in it 65euygoeba /l 9s.p4s, 7boahis

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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 fo aj9bn gvg) nq5-jt2:sllowing resistances could NOT be produced by a circuit containing only three identical 6Ω resinjg5 2)-vqabgt9j:n sstors?

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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 equrs. h,e 5f8vdic.hh /uivalent resistances CANNOT be produced using all three resi.hfsr,v5hc8de h /ui.stors?

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.06: Three resisto2 1 dcs0bvz-4h qm8twq9rhq f-rs of different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different s--98cwvqqdm 4htf0r zhq1 2bvalues 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 tota 5kk9qo 5xba,4y5kpt ml power P is dissipated in the circuit.xbk5 q 9 k54mp,yt5aok How much total power is dissipated in a circuit 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, havinghwwj/)7s3u:o/8ijpsl wpq 7n3(y im m resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements/s73swi 3wmi/(mwpjl q) nuy p8h oj7: 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 res b)hj +5ipa4u e+h*dscistance of 12Ω when operating at 120 volts. What is the minimum amount of time that i5c4h*e+d +bha psjiu)t 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 curr x qzefag51 r;7 +ey.-my4isd1rcnz 5vent flows through a 4 ohm resistor that is dissipating 36 watts of pocgez+5yd 751 ra ez4rxinf qsmy-1;v. wer?

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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 curab 3nolv g)g 4(phh)q.rent when connected to 120 volts. If the l) 3)nq( .ohp4hgvbgaprice 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 how3o6 hey oldmsn w3, vaq9..u6j much would it cost to keep a 100W lightbulb lit continuously for 1 year at .w6.vsoa 6odyhm93nj uql e,3a 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 o8 j tze73bdfe4f 4.00 A through a lightbulb results in a power of 24.0 W assoc3b zedej 8t7f4iated 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 a computer ratedc :2vtc1;:6 dhzcaas h at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what 6 tsh:d1vc acch:z 2a;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 imtc dn -i3:al2s connected to four resistors to form a simple circuit as shown to thel-td2i3c :mn a 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 9fbao2eys //8ph*itiresistors to form a simple circuit as shown to the ri8sb*2i//ita eyoh fp9ght.
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 idim-pjx w ,og. 8jr-9bnqt:h(p1wjn;;g/mov d eal ammeter, a switch and three resistors are connected as shown. With the switch open as shrgo,ntb-8m (ix;hj ;m.v 1/nwpwj j- g9dpoq:own 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 2rddajj(i/**prh v-jf)izd9o 6 jn 1vare connected as shown. With the switch open as shown in the -1 rp2rjin6j*jifvoh*(a/d ) dvd9jzdiagram 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 resis 67elb*/ldvm3 /ecljotors are connected as shown. With the switch open as shown in the diagrb jc/d l6vemeo3* /7llam 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 ff z35f.o.o pkl/rer/m4b: z nequivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all/ z o3.5lb e:pz/fnkmror f.f4 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 rightck. io * doo5bbmiu drhs27s5*(p.g4k with resistances *di(4hku52poms5 .bc.sd7g r ok*iob$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ide+ p0 ogcot z ,/dsq;qy*-ymd8wntical resistors connected in a combination series and parallel circu *s+y-odmp8qdwt/;z0cy, qogit 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 resist6sge 4 un3-y3v sddc;qors connected in a combination sdnye6 4sd-qvs cu3;3 geries 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 bulbs are identical. Which b, 4k.ms+)mhpzm:dy wj :axj /uulb willw,4 uz x+mh:m y):k/pda .sjmj 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 are b6.7e jn-is5y4w*4b aeia lx.o fr/qvconnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 aa w6s*fxqva yl4 5ebe- i.i7.n4/obj rmperes.
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, 0,cggkh+gjs8o-0, kdk2syt k:u r0zpa switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampkc k: g p ss0k,hrkt+uzog,-y 8002jdgeres.
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 switc9-i3 xuycu h5bffjm6:h and three resistors are connected as shown. With the switch open as shown in the diagramxufbm cjy:-uh965if 3 the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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