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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 the me8uyd ,p m)v6yv/apd7etal resistor connected to the battery. Which one of the following choices best ,dvy8e7)mvpy 6a /p uddescribes the direction 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 connected in parallel, the_________ )vitthv:2m p 0my31iguig ,o4each resistor isviymmvp3 gti1tg04uih,o:2) 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 wiru 5qxz(rw+- jue of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much coo(5rw q-zu u+jxler. 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 3e4 r 8erv5cpui pndm0 b;23vzlights are being replaced with LEDs. LED is the acronym350r nvp c4id32z ru;ev8emb p for which 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 lengx( 9l ouhvz6wuw(;zjax -ys7 *72haztth 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 new resistivity to the old resist7h7-zz x;vu2(sa*oyl6xwaz j9 (huwtivity 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 twibw1my d:+:nknjmno,+ 1vt 7rsce the diameter and twivmo:s r mn1n7n :wb,++yk1djtce 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*igtx-t7gd:q bs a6kwlv l+3; 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 wire Y would have a resistance ofa*6gl b x;3ltsid +-g7kq:wv t

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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 re +rlw:s jmkw:6 sd,y pe,hc.v7sistor has length L and 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 bjds,mp 7evsr6l .:y, k+wch:wecause 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 Edis *xzo /.f8s*)kk wibvion wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given voltakix**s/vk. )fo wibz8ge?


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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.07: Three cylindric5; r cqg6b*dfyqk1 f/val resistors are made of the same material. The length and radius of eacb /vdyfg 1cr6q; 5f*kqh 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 resistancepo6*tdp :u- fyepy6 2jqq0g h. R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected .dp2*ht op -0:y 66ju fqpgeqyin 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 accompanyi6lu5qcq .b3g fu/sit8ng circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 2/g tb5s6cu lu .fq3qi85.0 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 circuit shown to the ri,i ndp k/.k1w974gkn1x ilaxyght. The three bulbs 1, 2, and 3 - represented as resid l 1,pn1/ainig7k.y4wxx9kk stors 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 the right. If the current inb q6-wtj 1idyj inm10 3tg)dn0 all three resistors is equal, which of the following statements md 1tm006 jb 1nyji3g)twnqi-dust 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 representsles** +v;w: rg;ys tna a simple electric circuit composed of 5 identical light bulbs and 2 flashlightn* w;ser*lv ;tgy+: sa 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 0p4am,h 1shyd concerning the simple circuit shown where resistors R1, R2 an1hm 04ys,ph add 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 seriesdho ,e6wpk .8z 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 oth6ekp.h8 ozw,der 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 wi,itew 4fwla6yr 6:ka9u+sf tvx; r:(tll pass through the identified resistor in 5 seconds + r 4(f;ewxs yrtl t::i,vkt6w6faua9once 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 khg* - t4kgfy+ in the following simple circuit have the same resistance, which would dissipate the greatest pgf -*yk+kgh t4ower?


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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 current through th) pkoy0rcxc/n :.gd r(e 6.0 Ω resistor is 1.0 A. What is the power supply voltagn p c:rgd.r)kxoyc(0/ e 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 battery. wy2q: zed2k9g Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and k2ez29wqgy d: 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 R1l-i,7f3he kfu , R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V acrhk7 3 -l,ifefuoss it, R2 = 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 is rated 1200 watts and 12ak/h x3crj282cfh d z90 volts. What is the maximum value of the current under thesxcr2a 8d3/c 92j zhfhke 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 de 4gr rv1v *aoba2ly*/vpe*pc;signed to operate at 120 volt*p*l p4abey* v1vrvg2 or/;acs?

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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 curr8i)hoc2sym0x ent flows through a 4 ohm resistor that is dissipating 36 watt)sh2yoc0m8 x is 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 pre qsi:r uyaah)pn v26.*e t(7pwss clothes is marked "120 volt, 600 watt.” In normal use, 2inaeywh vp6 )*asu(q .7:rp tthe 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 circuit c(ehj bbx/w1jnvg i v8 l4q:/e,ontaining only three identical 6Ω resijb/ qg:v/h (w 1x4,i8ebljn evstors?

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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 o4 t-aynu2ii.xf the following equivalent resistances CANNOT be produced using all thxt iyu 2a4.n-iree 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 co o+ yj..udu1qcvy7h3 jnnected together in different configurations. If o.jv chy.31 uyu+7jqd all three resistors are used in a circuit, how many 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 bat n)svepaiih6 z.uz*7 3tery, 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 serz)n6p7ziv. u3 *shei aies 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 resistance R1 and R2, arv++0 mxaonkw2x h2 vl+p74b0;n rtmjye connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statementmb x m0nvxl;0khnt+pw24o 7j++yv a r2s 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 e r-oo5z9bzlu8 m /lnk(jzn;4 has a resistance of 12Ω when operating ao/;5be( 4mzu-jk9lnnlo r 8 zzt 120 volts. What is the minimum amount 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 diss d0 dl57wsd 1ag;bthmfkg54x2ipating 36 watts ofd;wt0g1f hbm d552ksx7g l4da 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 120 volay d29mg(r,saax2s . at xad a(s2ra9.gya,ms2s. If the 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 how much would itxj6ctyn* d *nt 1j5fz: cost to keep a 100W lightbulb lit continuously for 1 year at a rajj6t n1nxz*f y5t*c: dte 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 power/vs 3qc5b7a rx of 24.0 W associated with the bulb.x5sv ac 73qrb/ 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 i0t,8npt gbvajpm -at-c:2 q( computer rated at 500 watts in a 120 V circuit. If all computers are plugge mq(2 -t,pnatpbtvgj08-a: cid into a single circuit protected 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 is connected to four resistors to form a simple circuruasjp,1 t-l7it as shown to thesp, lj1 art-u7 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)aokfdm vr6kv4n) f:+ connected to four resistors to form a simple circuit as shown to the r+nfdv6k 4:))mvf aro kight.
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 connm82;dcaz 35u ;ok brf0a sfwk9ected2;m0 bc8az9kaf fo3krw 5d;su 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 resistorsdq3 gm-+pz74 xkzkbr wf+u(5 y are connected as shown. With the switch open as shown in the diagram the ammet kydwpx k+7zmr-4u+q z3gb 5f(er 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 ammeten;xdqe7g r*vo 5o5 2o d(rwpm0r, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 erm20vxd5 g;n7qrdo 5p*o(wo 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 ztfyj)53pm5 g5ll h: ysqd7/t equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resi3:ltfz mtpqy)/7dy l5 55hs gjstors 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 qsq2cntk8x (/ox 7r 7x*cm;meof the circuit shown to the right with res*x2cnm/ ;eo 7xr8tsqmcx7 kq( istances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combin 7x:rcnb4 9u0 ,7gs*omieazhn ation series and p7e ohr:4 9cx7sm*inu,bnzag0arallel 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 r zrte:uan ig77uno2 99esistors connected in a combination series and paraloiu27r9gztn: n 7ea9ulel 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,,gb ol 44mup)u all of the bulbs are identical. Which bulb will be the bbog4lm), 4pu urightest?


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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 sw-e m. qne8pk9bitch and three resistors are connected as shown. With the switch open as s mp eeqk9b.8n-hown 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 resistors ok)m, x4pxgr:n(l2n v4iysj4toos/) are connected as shown. With the switch open:xks o)x ,sygopt nij) r4/4v4m2no(l 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 resist9n )s(p nieo1b;vvpw0 ors are connected as shown. With the switch open as shown in the diagram the ammb)0v(o evwp;p1s n9nieter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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