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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 6i2t4r(dp:lfn/ ys32qezpm othe metal resistor connected to the battery. Which o6qi 2nrtl/d3ze42 :(pyomfpsne 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 conneuw3a s3/p7uc ucted in parallel, the_________each resistorps37 ca/u3 uuw is 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 wire of a9t yi3fb:d)etl-m -syb ::pfj.) z sjq lightbulb causes the filament to become white hot, while the larger wires connected tottj) ff3bb9) dqs::eps jymiylz .-:- 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 armpou9 3k o-b)ie being replaced with LEDs. LED is the acronym fou) 3i-omkb o9pr 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 length L and 7o9 9 noxkep 7*ovfv-mcross-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. Whatxvvoek 7-no9*pf97o m 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 v myldb/aqa9z/k-no1hla9. ;same material. Wire II has twice the div;yk1m b9dq//9.hl l nazao-aameter 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 but2v as61 j4fkeo has twice the diameter and half the length of2j fs1kv 6aeo4 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 cn zpp k;(10pa6p0qfv L and radius r. This piece of material is then drawn so that fp 0c (pnzva;q6pk01p 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 Thomasf/ + rt zxjpk ;l8d)arm1c :6plck0zq) Edison wants to make a brighter light bulb. He decides to modify the filament. tk: x8ldmpl)q)c; k/j1z+z p06frrac How should the filament of a lightbulb 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 made o /xjlmkv1z8kpu(*y79kuq/j1p .shb i r 7c ;qnf the same material. The length and radius of each n(p*lr7 kx.j1 bj vqp;mc qy/s/u 9k kzhi78u1resistor 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 connecu //z y7eech+hted to a battery in the following way: “Two resistors are connected in series. This combination o yze7/ h/+hceuf 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 acchd;yuu u)gq24ompanying circuit diagram has internal resistance 10.0 kW and the ) uguq24yu;hdammeter 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 rvfc;fste2 x(;zc- ;ec ight. The three bulbs 1, 2, and 3 - represented as resistors inc2-xceecz;v (ffs; t; 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 c(,8)xdr1d/y g0l5nzbjwlxygk z6n 7 sircuit at the right. If the current in all three resistors is equal, which of the following state 87yxd 56l ,krzzn(n1jglwg ysb0)x/dments 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 electricrvk8dft 63iq , circuit composed of 5 identical light bulbs and 2 flit 3rkv,fd6q 8ashlight 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 st .em8pk*qz0,btx gv4eatements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistancebe mk, e4tp*xv8 z.q0gs?


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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 series to a battery. t 1b;ik35+pugi gcxl3Bulb X is brighter than bulb Y. Assume all cil; +gkbitxugp3 3c1 5ircuit elements 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 pass through the idead uatf+j*) yhi 3/dvc )9if*qikm z3/ntified resistor in 5 seconds onzvh y+9 fdtufii3*/c3 a/ )*mdkq i)ajce 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 simpl 4d6(zup;c rrbe circuit have the same resistance, which woul pdrbr c(6z;4ud 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 Ω s gm/2hweg r 7a303q7 bjbq:uaresistor is 1.0 A. What is the power sag/u 33rge 7aw0 qsb7:hm b2jqupply 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 battyh iaml*m85 dn bgr;nn5wf) d34l3m7tery. Suppose R1 carries a current of 2.0 A, R2 has a resis)mf8b5w*n7 l5myam;dri3h nn3 g4 td ltance 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 connectewv(pq0z1 -)ffdu me*hd in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 diwef-pu0d zmh(1v q *)fssipates 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 raezp3nz):ckqi.m; 2rk ted 1200 watts and 120 volts. What is the maximum value of the current uqnc . rmz 2k)p;k3ei:znder 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 operate at 120 pbqga u/ i960a 6xbv+ka+/g ivuxk a bpb696q0volts?

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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 throu( rwbbr2pdqtbw +:o-.gh a 4 ohm resistor that is dissipating 36 watts owoprr-b(+:td .bb qw2f 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 usedua6l i/e3 ica)oqe3-v to press clothes is marked "120 volt, 600 watt.” In normal use, the current in )iu3e i/oaqa6v-l3e cit 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 N3cx,8lvb8jrv6*p ljbOT be produced by a circuit containinp x 8j3ljr 6vv*l,bb8cg only three 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 re om -l(cgw1z5qsistors. Which of the following equivalent resistances CANNOT be produced using all t1gzlom 5-(q wchree 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 dif3k* -a7*wsfvjzkvf9o5fx u0qferent configurations. If all three resistors arefkzvoufaj97x*k3 *q5 s0vf- w 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 battery, aiv (+sai :gp5e total power P is dissipated in e(av is:pg+5ithe circuit. How much total power is dissipated 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 resistan0aowo +l1o +tq:e/1ydlibm x 2ce R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the folloo10/iy1eb+dq wo x:2l+laotm wing 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 desv wo2159q f jpvqr2:zgi; ;, 3oerkvqcigned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it wouldf3 2 ; vp2q:rgr9o,v1vqojqc zw5k;ei 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 dissipating 30nqk* wg(g8o,,zz pbz6 watts of power?z0*gzn (wk,zpob q8 g,

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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 nz3e0( dhxpiz 6c1s;xconnected to 120 volts. s1hz(pdxe3xizn c6 0; 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 it cost to keep a 100W lightbu;p/bfggj w:i)lb lit continuo) wjbi;g fp/:gusly 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 through a lightbulb r o0o(ujqvgl6* esults in a power of 24.0 W associated with the jv 06g(o*luq obulb. 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 wat: 7lnwqb:hugift128yo f a;5a ts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is thea 1u:goqfa8b 5y nt2w;h7:lif 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 connectehap ut1k a /tsec61-:pwwly 49.fw*jhd to four resistors to form a simple circuit keu*-spt1 h 1cfl/h46pwwatj.wy:a 9 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 is connected to four resistors to form a simple circuzu62bd0noh ;b )y u7nnit as shown to t zyb6u)nnou bnd2 7h0;he 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 battera2,rpv/,isq my, an ideal ammeter, a switch and three resistors are connected as shown. With the switch opeqia,vmp/r, s2 n 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 9s+xf ;*px3rmml w8wdresistors are connected as shown. With the switch open as shown in the diagram the amfp w w+*m9xsd8lx3rm ;meter 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 batt6e 5aavzlgciq z+/o;:i f)djyk7p+i/ ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the 5 i6dij;/ic)++yo/7l apfzgaz q:evk 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 :ap8-ynko63 sml vi6pshown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all thvpmlk8y pa66-so3:n iree 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 wrj;mh.0m bj3the circuit shown to the right with resistances m;b0rhjw m3j. $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 h nf t9x+v 01sgfkm6o0shows five identical resistors connected in a combination f 9ok+fv0t h0m sg61xnseries 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 conn;niu4-j 5jn qgfr+/evlx5yj 7 d2zky,ected in a combination series and parallel circu+4xjryjz;d kny/jug 5,q le2 -n5ivf7it 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 circu5(5 wbx, ynk ;:jpdoh5y iwxc;it diagram, all of the bulbs are identical. Which bulb wily,w;kxho y5d;5:5b ji(xc wnpl 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 ideal ammeter, a switch and threeum*:ded6es u: resistors are connected as shown. With the switch open as se d6m* ::sueudhown 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, q8v,st i,i6d 19 pg1mnfgxj8 ra switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampexg1mv ,8i , f pd6t8nrq19gjisres.
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 switc,hlsn7xm dr -i6ky..sb +eyc1h and three resistors are connected as shown. With the switch open as shown in the dneki-+.d y7,1h6y .lssmxrcbiagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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