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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 eler +l7hbeww+ /:ldk1z. xgu(b wctric current exists in the metal resistor connected to the battery. Which one oflb dx kgh(/:u w.+l7e +rb1zww 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 connutq vj643:k: gnkh(vv ected in parallel, the_________each resistor ih v( t:4nkjvu6:kvq3gs 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 :yu :q wivyp),xp gs6)of a lightbulb causes the filament to become white hot, while s6)i gp q pyvw,):uyx: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 hzp)dpcjgv, .f,av+t.jr 1 b3)rmlg* tousehold lights are being replaced with LEDs. LED is the acmr,t.l3 )vvb* .jgzc+f 1 d)gj,ppar tronym 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 z 5laswc(l2bs 3nxl7.graphite resistor 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 resistivbwlxl ssz.c 7n25 3(laity 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. Wire II has twice the m o:nj./c k7 vuowzu3(slgb5* diameter and twice the length of I. If I has reu: nsu/* l7vzbcmoo(.35jk gwsistance 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 materil*ud:qfp4 un h0v ee3h -rx;b-al but has twice the diameter and half the length of wire X. If wire X has a resistance of R thenvhd0 4nue phfxl*ue bqr ;--3: 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. Thid ,1fhn,uo3--hf xdxs s piece of material is thd x-xn uhsf,of d,h-31en drawn 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 wan9 gtgm d+b6d3*)ptevkec, hd)ts to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order toke+v)hg 6*9dd, td)3bpget mc 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 jut*,icoe/x q cy ;:lgqs*/:csame material. The length and radius of c/q;oi te:l c**/ucjgx:s q,yeach 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 resistance R, are connecte6uefu ,jm ,bt3d to a battery in the following way: “Two resistors are connect6ume ,ut,fb 3jed 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 accompanying circuit diagram has internal resis49 u,/pnwrnrvtance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter rea4 pu, n9w/rrnvding 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 righi n mitz46/wkpxqrrg; .: :qu,t. The three bulbs 1, 2, and 3 - represented as rxg;4.,k : 6 u:qwripimrzqtn/esistors 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 at the right. If t4tfhwta 5:*h.s22xvr) oktjkhe current in all three resistors is equal, which of the following5kwk s.thhx2t4:jf)t*v2 oar 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 electric circuit c/w5dr4qw)o ) pc/qi (a;dm1svq-meoy omposed of 5 identical light bulbs and 2 flashlight cells. Which bul io5sa/vowqq )dd)myq rm41;(p/w- ecb (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 iilp -co: b*(,3litgm 2nq+v,yxyh -o ,ncc ke;s NOT true concerning the simple circuit shown where resistors R1, R2 and R3(pk- m :+yo2 ;lltic*ix c 3bnyqvcen ,o,-,hg 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 series to a batt/uz (eg:fmx0x(w: as,e:rc j sery. Bulb X is brighter than bulb Y. Assume all c ,ma:e:/xzux(e:0(rw cj gfssircuit 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 paeql 5zcso30/xp8165y fwcci lss through the identified resistor in 5 15isew c83xfy zl/cqcl p650o seconds 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 circuit have the ssz h:9asxzsai viye0-mlo ;mw3rn4n /h ;6x++ame;hi+lsn:-4 na h0o+xaw3ie6sm mzs;9/z rvxy resistance, which 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 accompanyingz3n .tl9d0lah circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What isdh l n9azlt03. 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 resistorswsupe/h95qa8u+z ph/ R1, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0euh5uq89p/ ws/ a+ hpzΩ, 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 3kwu1g h ge8qu1)*lytandR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipateswgtu1gqkl3 1u)e*8h y 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. What is thexi+c i+fg2k.:skexc 1 maximum value of the current under these conditii1c + .xfxsck2:+iek gons?

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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 opr4o05 qqw (vyqt5oe: hc a(scdl,l5 jey 9s)-uerate at 120 voycatsc5 e ho,owy(5e59 )vql jdq(:r 0 -slu4qlts?

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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 p9w kvvm,,c; cmm0 t0jthat is dissipating 36 watts of po,kc0mvj vpm;,tw m 09cwer?

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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 fu rqx+*6a+ egto press clothes is marked "120 volt, 600 watt.” In normal use, the current in it iseuar+ x qg6+*f

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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 wif5z :us/nb4 fs1ow cds,l55resistances could NOT be produced by a circuit containing only three identi/,ns415iffb: d uo5w zw lcs5scal 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 m 7) jlro;we6eksi;k/ 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be producek6;km/ eislrw;)j eo7d 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 nikp ihc.972i4q( ldhwlcc 9:values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be pr.w 9pc4icq d2( ckl hn7h9l:iioduced?

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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 -u+6:apc hwxb P is dissipated 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 the internal resistance of the battery is zero:+ ubwx6a-cp h.

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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 resistaf0 q8 z,8uddbxfs k qg0z4k)q2nce R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the reskgdq )2 8fqkd,x4zfqz08sb u0 istances 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 desi9me l)5hss3 l+irm:h zgned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it rs5l :)emlmhhszi3 9+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 tuw :-jkq kd1jk7k9vs- *jx5v through a 4 ohm resistor that is dissipating 36 wattsvvw:k-- 1kkqj9s7uktxj*5d j 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 13 amperes of curu)ay8dvot. giof v.rw7+./hy rent when connected to 120 volts. If the price of elewug .o8/fvotdh yr.+iy.v7) a ctricity 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 1su/ pcgf: a(suk8j *q)00W lightbulb lit continuously for 1 year at *agscj/(p u8fq)s :uka 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 resula tyjs f+hrk 9a8n0 2lx:ee)i6ts in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbulbr6lja9efe xs:8kt 0 +)yhni2a?

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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 watts q:q5oh6 t3 xj98fkk+cx5 hslvin a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, whaqx3k 8ftko5sh qc j+69l:v h5xt 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 four resi;qol9 irh6h+3(qje1bt 0 reae stors to form a simple circuit as showli3t jr106hh9b oe eqae rq+(;n 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 resisto 9ayln:v(nm cwxx8 8zge(6 wm0rs to form a simple circuit as z8 wlm 8wgcxn(m(n09vex6 ya: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/s1asz(bn* hf ammeter, a switch and three resistors are connected as shown. With th b s/nhafz(*s1e 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 resisto,vlq68(g ptbg uzu1t.)p;thn rs are connected as shown. With the switch open as shown in the diagrauh.8p b(u6,;p)lzn vtq gg1 ttm 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 thrk63 5ahua9g,g tp xw3sw5kgr9ee resistors are connected as shown. With the switch open as shown in the diagram the ammeter readkws ghagr 6u5w9xt ga9pk533, s 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 thyqmk(9 i1ai0+;3ajl( mdo hhfe equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical r;j3qi moham(hd(+9af0 ki 1 lyesistance 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 o5k) pgg5sregn1*t 3-)s pgvb qf the circuit shown to the right with resistances perbs*gg)gvkg p1)q5- n3 st5$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identich hevx-o7m ,9qal resistors connected in a combination series and paraoq,x h 97vehm-llel 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 connected inqr9rp56d*k bnklb 5w; a combination series and pa5rb d n5*k ;krpbw6l9qrallel circuit 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 diagrkslsiap6rh e:099 pw u85 k4vf34le fbam, all of the bulbs are identical. Which bulb will be the brightestf kuseif6rl0 e:59 pwhksv 3 4p8l4a9b?


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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 three , ad0lt-cy aus0k1rq* resistors are connected as shown. With the switch open as sh q aday, s1u0-*0rlkctown 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 rewckf z7rou +pr/: y+j1*f3ftksistors are connected as sh f zkr3c:/wk+yr *+otf1u7 fjpown. 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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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 1sz t:30 q g zze(.z60yoto0lqwox *khand three resistors are connected as shown. With the switch open as shown in the dia*g.yqoz zh0z30o lkt1s z x(0e:qto w6gram 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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