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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 exists3n ok dcf2r0x58fkdv4 in the metal resistor connected to the battery. Which one of the following choices best describes the direct2kd8c fk fdx354onr0v ion 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 lfg+ 9aw-3lbvare connected in parallel, the_________each resistor is the sam9 wglaflv+3b -e.

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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 th d- w:,(bjw*onuwm.rhr g4y15 fyvpn+e thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain mucwh5p:bwrd,rm vn-4y.gj1ow *n +uy f(h 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 li:w 0ex;d1 rcjzghts are being replaced with LEDs. LED is the azx:0wc; jed1r cronym 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 repessy shxa1 l f-)5-ny0 y/fcw zo:q5(sistor has length L and cross-sectional area A. It is to be placed into a circuit, but it /z-fcha-psfsyxo 0 (ny)se5q w 1l5:yfirst 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 same material+j4 ipe p+*z 9saqnpu4. Wire II has twice the diameter and twice th9p+zs4jq*+ i n4upap ee 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 th f n:c1u8gun ctl i4xwa7tp8;0e diameter and half the length of wire X. If wire X t7itwn88l un cga: fx0c p;u41has 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 resistorac3idy0)gdj 9i ;d mp0 has length L and radius r. This piece of material is then drawn sodda3 jd )0pg;9my0ii c that it is a 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 Edison wants to make a brighter light mdv0wek1ihw7 z3/uh0r 2x 0hy bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in orde hd yhu7i2hrke 1x00/vw30w zmr 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. T pv)orn/+wjo nyd9y::f+j i3 (z(rzsmhe length and radius of each resistorysj9o(+/() wnn fzovm + pyrji3 dz::r 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 k39qg;v py j,wbattery in 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 qvw,93jg yk;p 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 internaat)4xj+ )f hjzsgvr2x+, sne+l resistance 10.0 kWh)ts jnr42jsxxfe+)z +v+ga, 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 compound circuit shown to the right. The three bulbq4vn -n5lqld( ypd00 ys 1, 2, and 3 - represented as resistors in the diagra(pnq0dyvy qn- 4ll5 0dm
- 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 simp,u9ir ds1bo*0 ue(t txle electrical circuit at the right. If the current in all three resistors is equal, which of the following statementu0 d*x tb(ure 9ito,s1s 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 circuit ,ksvxv7rx ;8m composed of 5 identical ligh7vv8xmk r,s;xt 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 c8hu q 92uj:ipoc 8ec6i19bysy59euwroncerning the simple circuit shown where resistors R1, R2 an8cue998ucwh sije21 yipoq r5u9y 6b:d 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 lightbulb:aaod;z 2v2e-*ozbck: d a .rps X andY 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,r d;:cza 2:v2.o*ob a-zekapd 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 willi)iydejor52 tzd/ vx/ kte*/6 pass through the identified resistor in 5 seconkdjey5 /ti/x z2v6/itd)* oer ds 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 circui6s bmdsjyxi/d6g6ya /mn6: 4i t have the same resistance, whij4adbn6/y6m:dsxg/6y 6 s iimch 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 current through the 6.0 Ωvcna 9x-m0poqcv e 4:1 resistor is 1.0 A. What is the power svc9xnpv 0eqm o14c-:a upply 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 a battewr6s:1y,m yx 0.mt2ci fxga,j ry. Suppowcmyg0 ismyj.f t 1,,6 rxx:a2se R1 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 +zg,dk6x( jvmog.xrk bx*j0 8m8*wvc are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is dgxx k0 x+j.j,mgmb vcov8(*r 6z k8w*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 the makoq ami9. h7f,ximum vao7kqahm, if9. lue of the current 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 wde0eo 5scq(;l att lightbulb designed to operate at 120 v (cdole05q;e solts?

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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 diy f02h:3 skw gie6whw8ssipating 36 watt wh8wek:60gh2w ysif 3s 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 mal ,0bylu 9,fdbrked "120 volt, 600 watt.” In normal use, the current in ily0 fb,dbl, u9t 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 cir,y ph vl702el5 eiu.qjib/y*jcuit containing only three idenv /j0y5ehyb.ljp*le i27qu, i tical 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 fo 3ww5qin4a sr-v+t0 xvw+3jjnllowing equivalent resistances Cwnwwavq+3nv-jtr jx i403+s 5ANNOT 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 +cjkmfn vss2 3,m /)yu8*o nbtvalues can be connected together in different configurations. If all three resistors are used in a circuit, how many different valuesc b2nyvs3nu mj/ks+ o,*t 8m)f 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 ax1g*0csybkj k* uw : 9e(zlr*c battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical*s wceczl *01j(krxy : ukbg9* 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 resista1i0h j0 dem2ahnce R1 and R2, are connected in parallel, the eqj20 hidhma1 e0uivalent resistance 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 +6vwvk z *d8 njljrk3 a)6n89vtoebmz.t4e/p resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water from 8l3vtk a wj+ ve bnkz j/etm*z66)4p8r9d ovn.$15^{\circ}C$ 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 th0u j-.4;aqvp c saqhm9at is dissipating 36 watts qcuhmj . aq-va0s; 9p4of 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 wheroma wsrg3)-8 q3 0xxuk9+njpn connected to 120 volts. If pq n+uga)msj8k x 30-or3w9x rthe 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 w;.e8.oea f jhmnm0 4jzould it cost to keep a 100W lightbulb lit continuously f. je48fmoha.;0j eznmor 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 lc -,ttd1dj9nthrough a lightbulb results in a power of 24.0 9j-n dd,ltct1 W 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 a computer rated at 500 wat9mc+ od cuj0.wts in a 120 V circuit. If all computec co0.mj +wud9rs are plugged 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 battj*6u- qfvu,d5a9iy hgery is connected to four resistors to form a simple circuit fjd,9 6h5 uyi*ugaqv- as shown 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*iefd hf8,ythed uc (7db8k(tvu2y 89 is connected to four resistors to form a simple circuit cyu(d,9 (vd 2 tfft7 bk8h8 ieudyhe8*as shown 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, a swi.: gfe1 f rc1 rfpf;/jd2zx, ,e:nb7muj4nb uitch and three resistors are connected as shownbnx1 cpm f,ue:,2i /r:gz;fedf1jb. nfj4r u7 . 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 ammeterciyha-0fg 9/t,c3 cm e2d op4e, a switch and three resistors are connected as shown. Withipah 04ey92- ct dco3fe gc,/m 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 tc1* je0fny9ae5l z+h 7ou z9h( bhoe.jhree resistors are connected as shown. With the switch open0h95of zyj he ahncl9b * jze7(oue1.+ 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 circujxs zyyz.b3 w;ru+;m 7it shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battey7 wxjs m3u+z;;b.yzrry 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 right f(v/nm+ xlq*1o x g3ftwith resistan1n(xxtflm gf3 /q+o v*ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 showsur: b x15qk6pkuj08 2bgc d*ej five identical resistors connected in a combination series andek52b0j dpuq:grcjkb1 x8u* 6 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 fivecgtqf1i:8lhxp; q9 p a* a/(vw identical resistors connected in a combination series and parallel circuit to a vog1 t/fqh i vplxpac a8(:q;9*wltage 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. Whichipxvvkvuv7 qd5y ;p3- v;v n1(+w7 smo bulb will be the brv7q; psnxvvmw;ov (-+v71p yv5 d3ukiightest?


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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 ammetecyvq9uog( 6;yl cm29 mm19t uqr, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammem1t9u9yq vgm6o (2lcmu;9cyq ter 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 battearzx5 0u .stnk vw:g)3ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes sn.035 wtu v:)gkxzra.
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 aj a/yvov0b 8i1 9(0cdzsq/v aand three resistors are connected as shown. With the switch open av08ic0zaa(oy/vds91j / bvaq s 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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