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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, anhl: gj(ed 0ss. electric current exists in the metal resistor connected to the sl(gdsj0h:.e 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?


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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__v6b 9bzlhc l6;y/hax0 _______each resistor i/96hlbvcab0hy6 xzl ;s 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 filameneg+oga*fa0 v n0cm0f1t;ijs5t wire of a lightbulb causes the filament to become white hot, while the larger wires1va*ejgm +sc 0;gifo 0 naf0t5 connected to the 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 r rdcghk8(/kmh1yw +vctd6 ib; *ru;v(eplaced with LEDs. LED is the acronym for which one of the folhdcy/tdkw(ku*; brh rg v6 8v1;imc+(lowing 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 y9)bwu)00wbp jff6vl resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it u06l)9) wjv0 p fwybbffirst 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 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 samebyl+3p+ju;y51f kf sg material. Wire II has twice the diam k gy3jffu1;+5 yls+bpeter and twice 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 of the same material but has twice the diameter a)09wwloqlp :fnd half the length of wire X. If wire X has a9w q:o)p wl0lf 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. This piece xs ci/t ljil,xluqpz/a2 4;37of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this mx7u t;42a/3zl, s xcqlili/ pjaterial 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 brig5;3x ojukhh -nhter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modix5ohjun h-3k;fied 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:qyo3onwc4/q n5s;3bq rpcx2 length and radius of each resioqqqc; n234:w/x o3yr ncb sp5stor 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 to a battery ingl,:qb uv:2z v the following way: “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 thisgbqluv :2z ,v: 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 tht7ib xm/ mmvlg;3.jp1e accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammetep mgl ;t/ijmm1vb.73xr 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 right. The three bulbs 1, 2, 93 a8t9ckhefbjxwy11hsr89k and 3 - represented a1cye3j8hh rb9 akt fwk819xs9s 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 circuap yhkhm)s men47,, giqq9j610s2yux it at the right. If the current in all three resistors is equal, which of the following statements must be trs 7j2qy m0emkhsaphu,1qn4,xyi )g9 6ue?


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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 circui ha;u6tf gj8ro2 o*h*tt composed of 5 identicalo 2 ftaoth**g;hu6 r8j 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 statements is NOT true concer vw.4 z9+mqawkf5: kfdning the simple circuit showdq.+:w4w5fk mkzafv9 n 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 conner*ym.ic kf.lf7.q-34df wuu- 2 ep ntected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X e-.7p.k*t .nflud2c rifuqw ym e3f- 4andY are connected in 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 identified ree wj)bh+f32 ywwg/le- sistor in 5 secfbeew-wg2 l+j3 y /)hwonds 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 nmo2cz/vr;q: simple circuit have the same resistance, which would dissipate the greatest p/zv2;qmcor: nower?


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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 accompanyinlga,qsr 4y1cz2rs36 mg circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What i1sy,sz l4m23rq 6grc as 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 i ur46c4,1 mjv/vw kssln series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of s4 wk/cljrv,v6um 14s3.0Ω, 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 connect o--.b(f e1oxgoyj0kiqc26 h med in parallel to a battery. Suppose R1 has 2V across it, jk ihoo. 1oqy2-6ebmcx(0 -gf 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 120 volts. lgikb .b- ;2zd(l9sr08qlxwg What is the maximum value of the current underq b28dblxwl .90z ;-gg r(lsik 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 designed to opb y3 ipfndm/64erate at 120 mi6b4 ny/dfp3volts?

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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 xs07.a2,kdui z; bdfqlsm( t14 ohm resistor that is dissipating 36 watts of powerzb m,;i dlfq.s0sk2x(7uad 1t?

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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 p-/ar4 yl,,6fcju rn nsress clothes is marked "120 volt, 600 watt.” In norman4,rl ,yfsruaj -6/cnl use, 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 byymq bo9w) t;r1 a circuit containing only three identical 6Ω y);wob91 mq trresistors?

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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. a-y ft1m0d1yhWhich of the following equivalent resistances CANNOT be produced using alf-atm10hydy 1l 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 in difg1o*kx :+j 9.3l4wuiqqbdocxferent configurations. If all three resistors are used in a circuit, how many diffe41w3 jdb.*ck9ig :xlox+ uqqorent 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 is ou:-rgutn 4d.x)uayr 1j4y5udissipated 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 :.y441utjuond5rax)uuy r-g 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 h b7b5x*0 ;k2 c(kgzaquc .gxeR1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following c;*c. b52qgx0(7zgxha ekbk u 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 design-r rw,1 dw; fqlpd(7 s:ltw4baed such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg 1fqdtl 4,bwad7r:w wlp ( ;r-sof 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 res-nv 8 +eftgf tp.9imi2istor that is dissipating 36 watts of.-+m 92fpitin8fgte v 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 13eqj5:1rl dhb2 amperes of current when connected to 120 volts. If the price of electr5e:rl qdh12bj icity 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 /a v+gd dp(e2zhow much would it cost to keep a 100W lightbulb lit continuously for 1/va d gzedp+(2 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 through a lightbulb rhr73w, x 1lmqp0e.p:k a3hbhlesults in a power of 24.0 W associated with the bulb. Whrq0h ,hpm1 elb3k3hax p7.wl:ich 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 o duoq n,025ofnf a family of six owns a computer 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 ma20oqu ,nodf5 nximum 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 cirovlh0b 28:a .p s4uasccuit as blv u 8s.4paohc:0 sa2shown 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 batteryk.z3d h4 dgc9*mws. aq is connected to four resistors to form a simple circuit as shownd*93g qc wks.hm 4za.d 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, ao8/qb a/9aldf switch and three resistors are connected as show lb9ao //dfqa8n. 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 -6ml9l c )syol+(ts+gvx4wzz three resistors are connected as shown. With the switch open as sho(c6lv tlz glssy-+49+oxz) mwwn 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, a 2 43gc icggzmlx2( rf,vq6(mir4gft5h-ft2e n ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rrgfhx2t 56zci4-mi( g rf,qcl(24m g2vt gfe3eads 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 equivalentkmfff hpf)b-q*,, uu7 resistance? Assume that all wkbq,u)f,f7 p uhf-mf *ires 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 rs2/oo6njd5 e right with resistr5n od6js/e2o ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identicalhp 1ep lw8a26u/hw;dur)ep ): j: hcyb resistors connected in a combinati)6 u1deah8:clp)j pwebu:y2 ;/whhr p on series 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 sho ;zs98q 6:s ;ewhp ftdrjxc0p8ws five identical resistors connected in a combination series and parallel cirdejpqf8hswc ;6xr8;t9 p0 zs:cuit 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; xeehraf2actdpp:v.. b7 ju7srx78x6if)k: of the bulbs are identical. Which bulsvurxp8. 7cee.;dh7f r pa)i:jxt:fax7k2 6bb will 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 idj byh25y * d fwuft2i,h,z7s1xeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the dia ,2i fhwyhtd,j2y *zxs17bu5 fgram 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 t69,l4e hsu l/fwkc* hshree resistors are connected as shown. With the switch op wfhk*u schsel 69l,/4en 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 anpvymu2n, .nz/ d three resistors are connected as shown. With the switch open as shown in the 2vpn/y .,uzm ndiagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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