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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 electriskp(* 1kp mmc)c current exists in the metal resistor cos)cmkm k1pp* (nnected to the 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 resip6obgcj 2m7jo 5 zdx3my 8 ha4wv7p*f3stors are connected in parallel, the_________each resistor is thw ap mj68o4yvdj*7bx2 7 opz f5h3mgc3e 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 thlrcr- a0; azgx;1bn -me thin filament wire of a lightbulb causes the filament to bz-mng;x ;laca1 br-0recome white hot, while the larger wires 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 replaced with LEDs. LED isl-x 09o j; q;(xszvqzh the acronym for which one of the follq0hj;x x ;v-9lzz(qso owing 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 length L and cpa5iv;j1 njow, zgy/q* omfx+qjim 3/ 7;,pea ross-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 j* p1m,/ xa ej;j,ip oa qw5;io3fy/gq+ v7mnzresistivity 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 IIb sere8 r*:r9tyj5x c:hsg/)h are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance Rbeg/hrj8r*h ec5 y9sr:)x:st , 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 h(2pvc(ktk zf+ as 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 ofc p (kz+2tfvk(

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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 lengt 2 z+i3o dz 2)hdxcdhsl,z6n1ph L and radius r. This piece of material is then drawn so tha2xi+ phod)162d3 hnd zz,c slzt 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 brighter7 6(k yumke1s )z *)jczn :w8dxdtp3yo light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce m nx*kj7ey()py8 :3mku dd ct z1z6w)osore 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 ther 9(qio6ok-my same material. The length and rad9qkoi6 m -yro(ius of each 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 ueb 33a,77tc3 jojastresistance R, are connected to a battery 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 connected in series to jbta uca7e73,t33 sj oa 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 yg e6k v(or7v.d0yx1f accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.0kv f7e 0yr .vygd6ox1(0 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, 4;po, 8a/joc-(p ybvrixc003nx h lrs2, and 3 - representb ;ch3 pp80-(or,racvn0j s4 lxy/ix oed as 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 a,i )jo vpvs-l7t the right. If the current in all three resistors is equal, which)p ojv,lisv7 - 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 vhz +np,lzp/z 6c4 *,ireh:4jrmg1gba simple electric circuit composed of 5 identical light bulb4r 4:m zpb,g+ 1cl/,i6pzg hz ehjnr*vs 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 followi2fnko (c5. eejng statements is NOT true concerning the simple circuit j.ce25n(k foeshown 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 connected in ser3 wow4gs:hsy -ies to a battery. Bulb X is brighter than bulb Y. Assume all circuit elemen ohssw4- g:wy3ts are ideal. If bulbs X andY 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 pk+t;7ku hna5.hv ;avsass through the identified resistor in 5 seconds once the circui5 s7auakhvt vnk +.;;ht 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 followiv7 f 1rk7*qdu7dzvryn8ju+8 p)wfk 6q (j(r nbng simple circuit have the same resistance, which would dissi8 *6pzfqd wjq+ yunkvr rf)b(u n8 j17d7kr(7vpate 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 -d6dq4ao ,g ;ue p(4rsz4qacnthe 6.0 Ω resistor ised 4zac,d4nrsg 4qa ;(ouqp-6 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 connectedfce3x e k(o:.y in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistan3fye ekcox (:.ce 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 are connectejg+5xg8pz9 pe)vpkb ;(m e8qcd in parallel to a batt9+b)885 vpk z(gmq;cjxepepgery. Suppose R1 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 120 volts. eanw/ bb aa1 (s(sk0:s What is the maximum valn(e aa/w0 (basb s:1skue 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 wattwqac7wh-qp6h(wpx+ z 6dj+;1/ nqgy o lightbulb designed to operate at 120 volt-zno(q+ 7p jq +6;wy6 h1wpxdgcqawh/ s?

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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 dissipatf3 yp;.e nqrfv l83nbf35jp0u ing 36 watts of poweny0p8l3e u.v ffrf;3 5 jpnb3qr?

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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 markuzs xbg,xas61;o8i w,ed "120 volt, 600 watt.” In normal use, ox ,18uxbswgs6i ;z ,athe 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 oeix3rq7 6ze-containing only three identi-xr 7 eq6zieo3cal 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 thec(xrpyhg3 6n/rg/ baw pp ,,*f following equivalent resistances CANNOT be prp/xhb*(/pwgp g y ,ac,nr6fr3 oduced 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 tos/m(4hiacxj -q5a bi /gether in different configurations. If all three resistors are used in a circuit, how many diffea/( iaxqcsji-45b/m hrent 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 batte wzfx vo yx,ejx98215g7uhk:mry, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connectx7yh2wjxf ,o :x8 1gzue9km v5ed 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, havne)+k3 z*btvying resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the follow n3e kzbyv+)*ting 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 thwhga, nhsm .:la -08l2am e2vqat it has a resistance of 12Ω when operating at 120 volts. What is ts2,a lm0h:a meg2. whvl-n aq8he 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 j -6jd n 6pcv3*fhuij .q3rg0vresistor that is dissipating 36 watts of q3-h3d ifgc0jj r v6 *n.uj6pvpower?

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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 conng 4 p*;/ylia gw9hwe8zected to 120 volts. If tlg h 8/wgipzwa9 ;y4e*he 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 mucs k app+4bu -l8wl/8uch would it cost to keep a 100W lightbulb lit continuously for aplp8b cu/l ks-w+ 4u81 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 4.0029d x:wpsn-vag :wyb 9 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the followivgp:x 9-s wndyw 92b:ang 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 jh s bzw2u 8si(k6x+g(watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 62(8s (izkb+wjsxh guampere 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 fbz7.jl cw lg adtd:/94our resistors to form a simple circuit as shown to the z t74al9 :dj/wdgb c.lright.
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 em69obs(onqfh0 :-u5p4c zr zresistors to form a simple circuit as shownh6ru 5:zzn-fs(qpbmo ec409 o 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 switch and threefe8e hy1oz:zt0 *,s ey resistors are connected as shown. W zoe et,:8h 0fyyes*z1ith 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 resistors are al ;-d 4ph8;6ic8i vf/m;u.dmxxwgik connected as shown. With the ;;8 fhc ikpd;v4d8a wlxum6g- ii.m/x 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 arc1bhx6 (hy( und three resistors are connected as shown. With the switch open as shown in the diagr y( xcrh6b1(huam 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 y5 afoc ;4cnfp9l: ghwwwr.,s c 7.9ogequivalent resistance? Assume that all wires are ideal, the battery has no wlc rfgno5ohy:sawg9 f4pc.,9 w7 ;c. 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 tuey8qt,b (:3zqmys ;a he circuit shown to the right with resistan;meb8t aqus3(zy qy:, 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 shows five identical resistors connected in +8rww *jvmeuryp r7.cn*x ,;ma combination sery*r8m*rwx,r7 cwv;npeju .+ mies 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 shows five identical resistors connecbuamr6gk s5(u96tix8 ted in a combination series and parallel circuit to a voltage source. (t ar 6g5xuu8ksbm9 i6
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.u9ftc) 6i xr3 dkiv4:d Which bulb will be the birxtdf4civ3k d6)u:9 rightest?


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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 c8*9,vvm rlqt, an ideal ammeter, a switch and three resistors are connected as t8c*vl ,9qrvmshown. 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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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 are con.n1.jneq e lc:nected as shown. With the switch open as shown in the diagram the ammeter cj1elq.: enn. 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 resistorl6vqmxl;sy .kl7vs 2+9tgg4r s are connected as shown. With the switch open as shownqky.6x+s ; gl 9lrsv 2t7mv4gl 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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