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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 i eloeyw) she3bq11g:) n the metal resistor connected 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 t1e)1qe yl:w go3bhes)he 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_________each.voe-pa(5 kal resistor is th-e5ok.a lp (ave 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 f l v a yp:qq2;xcxq.rm8c3v0;v4 vf+cbilament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to theyq+ :cc 2;lx.cvmq4b; 8fa prvvv03q x 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 is the ahi u7x1;1qif2t/ane n cronym for which one of the following choices?a nu1x1qif;7/2et hin

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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 resistoyz:5d /z c0w4hyf t;f sbxvs+uwq)s*;qx3o n;r has length L and cross-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 resistivity to the old resistivity of the cylindrical resis ;3 qw4+ h qssdyw;oxfn/yfzz05v c:su *);txbtor?

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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 matub83: ;wpk/l vtue *(vagk9tavzd v-,erial. Wire II has twice the diameter and twice the length of I. If I has resistae k9zu(a-8, vk: t3a*vgp/ vd;wtulb vnce 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 5v bzmcva6n d,2c+l 2lsame material but has twice the diameter and half the length ofcclv5md 2v +lnzb a6,2 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. This mse2n k,c7 2rv(bksr+piece of material is then d ec27,nsb(srm kk2v+r rawn so 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 li(ceot9;nda(c um 6rw) eikd8(ght bulb. He decides to modify t(6matkiw c;u e8)(ner 9oc (ddhe filament. 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 arep9ur sz fq-:x.,,an:edfs2 zr made of the same material. The length and radius of each resistor is: :n:euxzs, z2-pfsf, rrq.9ad
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 resistorw6-b,7 torpuhtb zf;l,as9 8u s, each of resistance R, are connected to a battery in the following way: “Two resistoruh8 ws7tlpt-6,u ,ob9zf ;rbas 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 accbkoa- 8v r/y:zps 9.1ddx p2ucompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 2u b2ryka -/d.xdop9s c1v8 :pz5.0 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 c+pbwx xn 3st e a-a20u5dh3np6ircuit shown to the right. The three bulbs 1, 2, and 3 - repres3 w +ns-x6bn2pae p0xut 3adh5ented 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 ellsxg (4;3sl iwectrical circuit at the right. If the current in all three resistors is equal, which of the follw ;4slxgs li(3owing 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 6x8e28ezqon pbhse;/lb1w 4jelectric circuit composed of 5 identical light bulbs and 2 flashlight cells.2p bw he4bqs/e n8oe z1j;lx86 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 7v, 26/borifaf2 rtuk following statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are haai,f o62tfb/ rruv27kve 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 atsarr.)qm 9q:re 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 eac q.:asrt rm)q9h 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 bf9k+4b vdn5 q will pass through the identified resistor in 5 seconds qdn9+bv5b4fkonce 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 simplzu( r5a3jeh y bv8qv8r5n7pkajk4 . w*e circuit have the same resistance, which would dissipate the greatest power?qvhkra(a8w *38.r7b55j jv ue4nyz kp


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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.r cyj szfifr2 2zp5io:d;d) ),0 Ω resistor is 1.0 A. What is the power supply voltagy:z zfps ir;52d ri)2c ,j)dofe 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 uf6nypjnn 04r 9qt6a/R3 are connected in series to a battery. Suppose R1 carries a current of 2.4jnfn66 y/p uq ta0r9n0 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 are connected in parallel to .un(kk: o5ak/8f b:zyovs x4 ga battery. Suppose R1 has 2V across it, R2 = 4Ω,5 z 4./ ogkvkny8uox: s(:fkab 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 1j n-7dphmhftt m( 4ksk l45gjg+:j -6e20 volts. What is the maximum valj+(4hfhpj 6tng -t5kl-j mm7e4s gk :due 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 watt l. g(x0ibsdhf)ightbulb designed to operate at 120 voldi)0s(gbf xh.ts?

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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 d gc7 ,3 )eg y)o7ca,yjeprv1bpdhpd7/issipating 36 watt p7hoay/)pejv7 1pcrc g,3bddg, )e7ys 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 marked "120 volta5:-k.zrcx8si zw3)e5dyk sfb2 r/ j i, 600 watt.” In n/df bkz 8z:-a rix)yi.ks55j r2 c3wesormal 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 by a circuit czys v0atg.. *bontaining only zsy*0.g tab.vthree 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 rwfi*2dwi5 n7,i,nbb kesistors. Which of the following equivalent resistances CANNOT be produced using 7i*bnkb2in5 w,fwd, iall 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 p,kix8 b7,i*h c oj3kbof different values can be connected together in different configur8kpki cx*j ih7o3 b,b,ations. If all three resistors are 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 iu .z arpv +yw8smr8g;.x/r *ygs connected to a battery, a total power P is dissipated iv;g/ *gp.8yyarum+zrx w r8s.n the 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 resistance R1 and R2, are connected ina;0x prgbor2( parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistan2pro;(agrx 0 bces 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 resistance of 12Ω when opee4p) tqf51 kotrating at 1t)1e qpo5f 4kt20 volts. What is the 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 throul.vg: -v 5+icw3oead bgh a 4 ohm resistor that is dissipating 36 wattwi.o53gevd :cbv-l+ as of 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 1efj2vsx0(. ausgt0 7 z3 amperes of current when connected to 120 volts. 7gszxvsf(.t 0ae0j u2 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 li2uwyfresomct -l;4cc60 5o (nghtbulb lit continuously for 1 year atmy2lrc ou0n5s ;6e- wc4(o cft 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 results *idm/s9pbpe ).aw(a u in a power of 24.0 W associated with the bulb. Which one of the following choices best r(u/peip a*dabw9m.s )epresents 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 fam :kevhbagc; 4hjl*77p ily of six owns a computer rated at 500 watts in a 120 V circuit. If all computj774*lbpeghh:c;av kers 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 battery is connected to fou2h e9ye:kioh6 r resistors to form a simple circuit as h 6ihye9o e:k2shown 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 for .svds,v-3d3dba6lhqp0ix 0 pm a simple circuit as shown to ths-3 0pvl6sqi .0dhx3,vp badd e 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 afy8kg9 /s.3dsa;mp*;u guvix nd three resistors are connected as shown. With the switch open as shown if83s *aku;ygm./9divs pu;gxn 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 ammeterd:y k +k-)we n t+timo(m g1m*af22spr, a switch and three resistors are connected as shown.m(ipe*drtsmg2n:m1kk fy o+-t 2a +)w 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 resis,n o7z0l i+zxrq +wby1tors are connecl1+ozn z+ bwyqi7rx,0ted as shown. With the switch 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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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit shown trp5k) i dzsv 2)raf(+go the right, what is the equivalent resistance? Assume that all wires are ida(5 rg rdiv2spf+zk)) eal, 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 lcf*6mefs j ;(eg)e +lright with resic);+ l6lesme fjfe(* gstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ior0u*6vy:l)wuoa r g o-*+lgfdentical resistors connected in a combination series and parallel cirl:wrruo6f a-*+ go vuyolg) 0*cuit 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 connected in a combinav 8cq*h8ab7letion series and parallel circuit to a vov *lqc e8h8ab7ltage 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 identicq*fc rmoc kc17jq nqm/-;f 1w7al. Which bulb wi71/o7cw cr*;j knqfq q1mm fc-ll 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 ideq(gqqgeoye+5ek5z /0 al ammeter, a switch and three resistors are connecty5/+goe q(kqgze5eq 0ed as shown. 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 t)jq59 rh:rn n,es0os1 f4f zvuhree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampereszhfqe0sv,s9:uo5n ) 1rj 4nrf.
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 battptp 2s6jo:(pm xw:ttux/5o)ly+de ff yig/(7 ery, an ideal ammeter, a switch and three resistors are connected as shown. With thxpex:d + upmw26/ ylt5f) (:jotg(s7iop/yf te switch 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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