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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, a 18.:zs mjs e8qnm lmqm.5yfy*n7 qq.an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direct f7sm:mnyjqqn8 .q.meqzs .1 *l8ay5 mion 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, th6 cn:ohvvk2 i;,mc zk- *5mbene_________each resistor ih v; ,nn*52vozme k-:ki m6cbcs 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 throu72k* uyjl4 eczgh the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain m2yc*4 kejzu7 luch 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 replaced with hg oi +m-j0e7+wlk7oim4 2yizLEDs. LED is the acronym for which one of the followinyl 0 7i o+4ik7gzm+ heiomj-w2g 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 resivib48i0( fi3om;dr*d u srwv )3qc .bqstor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut v0w svmo r3q fd.(qdi;ib4 i)c rbu8*3in 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 (ez da6(0i,go xz/n/.monqa zmaterial. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resista.6ao mnza z(ni0o,g(d/ xe/zqnce

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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 thzzv)l :o o )gpt 6l3zdl58uzo4e same material but has twice the diameter and half the8v354zz dol:o uz oz) )6plglt length of wire X. If 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 length L and radius r. Thish c(mri)f:p t6 piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistanpi:h)tcr ( fm6ce 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 Edison wants to 6jrjmua)+9e3 d7te6pomds, omake a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb )so9p7arm+moed 6j etjd6,u3 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 m5e7w: s08mo 3 vx( meogdlo-jnade of the same material. The length and radius of each resistor is7 md8(m -lgj5weso:e vo0 3nox:
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 resistancacyl/di8)).-hild bw e R, are connected to a battery in the following way: “d.d)blywh/ i li c8)-aTwo 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/ljbk /1kpi 9 eve:-wvuax k1 50jix.t diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 5waju: e- i9 j1vb./lk0ktepx1x/ kivmA. 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 circx)rqw+pat 1 g x:ipc5/uit shown to the right. The three bulbs 1, 2, and 3 - represented as+/1tpwpg5r :xxaqci ) 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 at the right 7c:b pq 0la8vw99qbpy. If the current in all three resistors ipvpy q: wqacl98 7b0b9s 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 electric circui0yafd/q0i e28g.kjnn t composed of 5 identical lfnj0 .8gqdk/ie0y an2 ight 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 follg1 9amgkml6eu 5do p13owing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are 1 om la513kggm9u6dephave 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 and6qc;/ pfj1,+qeooe ej Y are connected in series 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 battery, which one of the following choicepeo /qeqo1j6ejfc ,; +s 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 )i nbt,if z+i: *zq (ft-xd;zf the identified resistor in 5 secffx*iif (tqbi-z:z d,n; +z) tonds 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 fo mzjof0p* g9lm 0490nr a1ptaqllowing simple circuit have the same resistance, which would dissa9ao ql0m010pp jmztf 4r g*9nipate 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 current through the 6.0 xhrbj s-i/e 789r)u ra Ω resi 7ijhrx s)8 /ur9-rebastor is 1.0 A. What 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 connected in series to) jy kapa+7ds kdx36w3 a battery. Suppose R3yk3dp + 6jxasdk)a7w1 carries 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 aevza;l.c;n(457bfa tea3sok re connected in parallel to a battery. Suppose R1 v7ana 4 (koe.a3 ;ez5cblfs;t has 2V across 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 12vsn1r +*8kv(lczg2eo 0 volts. What is the maximum value of the current uesvo+zn8g*2v(rlc1 knder 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 desf bf.ce/9(p fuigned to operate at 120 volt/.(9upc f ffbes?

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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 is dissipating .v /)+( u 5fq(+h,if105qdirliyamd rpyhgak 36 watts o,dpmqlv )dk51y.hfrh+iig5 a+ir qyf (a/0 u(f 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 ma8jv jsypx79m)rked "120 volt, 600 watt.” In normal use, the current in it mpysx)vj78j 9is

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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 resistancesl01am39 g,z iepcj9ki3t jfm1 could NOT be produced by a circuit containing only tzjg3m 3, plcfii1tk9a me91 0jhree 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 elk. 7c( /x-fo hlf,css5rrh: aquivalent . ,cr7-/hsrl:c5fh alks fx(oresistances CANNOT 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 connected together i4-tcdzdyxu,)s .7ix xj h9ex ;n different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be );4s.x jx9i,u xhdd -c7 tzxeyproduced?

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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 c8 j 6ti2o ve.cv2mq60 rto1cgtotal power P is dissipated in the circuit. How much total power is dissitg root1 jv e26cc6qc0v8i.m2pated 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, having resistance R1 and R2, are connected in parall4:72y2+u hmkvge rw fcel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances if hv guecry: k7wm+422s 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 w;33gj yp wh;qsz*.xfahen operating at 120 volts. What is the mingq;p33axz j wfs*.hy; imum 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 re,qdhm a/4pxz;4 cseawjr) ,*tsistor that is dissipating 36 watts of powera; * s,et r4jz)x4dqa/mhpwc,?

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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 cucb 8b;u+ume n .0qdy:krrent when connected to 120 volts. I:muq8 cn0be; kb +d.yuf 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 it cost to keep a 100W lightbulb lit cd7rl qu9tvvuc 1 )qw;0ontinuouslt lv)01dq 9c v;u7wqruy for 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 throiju sfdn05:,wugh a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of 0 d:i5n,fjuwsthe 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 rated at 500 wattjxf)kn6k5/hjtxq 01vs in a 120 V circuit. If all computers are plugged into a single circuit protected 1 /xk) h65jfx0 qnjktvby 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 ciyptqspv v.z-g0z1nqy 6q56 :qrcuit as shown to pqt .gqzsn-61 y56 qv:qzpy0vthe 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 +xq kry(7yh)s to form a simple circuit as shown to qy7ks(hy) rx +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 thre8 /pwlt di5i6be resistors are connected as shown. With the switch open as shown in the dib twli/5dp8 6iagram 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 sl(w:hlrc;z(1 1oe*t k zwy9qbwitch and three resistors are connected as shown. c l1tryzl*whzo qk9bw e(:(1; 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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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 resi6iiek ;tj n;npu-n ,d-hm2)z) /xugwh stors are connected as shown. With the switch open as shown in the diagram the ammeter rea6/)e w z, ju khg-nptx n-;ihnm;i2du)ds 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 6 -s,u 0usmza.jnxr4 fis the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and as0 m u.xr,- an6f4usjzll 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 8n4ipn d g0le)(q1sy)c b4pgd circuit shown to the right with resistancel10pigd48d e nbgy(s) q4p)n cs $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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/yt lb/) ng0bx in a combination series and parallel circuit to a voltage sourcen)b lx/ ytgb0/.
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 resis+in5omvd:nq kk3)wq( c5dw -r o k1dh-tors connected in a combination series and parallel circuit to a voldk:d-cv5n w3od+qqnki ( o)- h m1rwk5tage 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/ cvz.rok 1ft. bulb will be the brighr .ck./vfzo t1test?


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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,:tg5h 1u)tv 9fi b*jdr(0inn j a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads b) itj19fj(ng:h*u5 t0n ivrd2.0 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 sd3sglt9 x*) cgr.sy((tp y:mnwitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 23(y9gss*ty.g :( x nmpctld)r.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 0 0ybrd hbpp ip)nlm-y0jr6j2 o 6i-z8three resistors are connected as shown. With the s0y bmnj pj6 lro0pz )db60h28-- ypiriwitch 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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