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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 the metal resist ef*h*qp/9 qlror connected to the battery.qfr qel*/9h* p 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 resistors are connected in parallel, the________pm.1qn/r /i +u1tu h6 k+xfai5 je+eh.whtkr1_each resistor is the squhj+ktr+ h.5 e/ 1m1.fwx/nt+a ur1e kpi h6iame.

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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 a lightbulb causes the fil)nst/ gntig-k07ltj 0 ament to become white hot, while the larger wires connected to the lightbulb remain much cooler. T/k tltnn ijs7tg0)0g-his 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 withcbkdb .o 4br1)6p*-f zl-cg os LEDs. LED is the acronym for which one obo dcbk6-1lrf*bg.s)c4zp- o f 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 cross-sectionspb( b2 ,) il/35cs3ctyo ywz pluw65gal 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 Lswu(soig c3ypblpy3ct26b 5w ,)l z/5. 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. Wir5wz-qx1z7zzxz t g:c/e II has twice the diameter and twice the length of I. If I has resistance R, It :1x/-zgzwzx zzq57cI 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 the diamaa/ z/t50tdk j7,nww seter and half the length oas/awt5, wjn/0tzk d 7f 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 resistor3m27vcfax ub 7 has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material becab xm7f2uvac37use 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 Thomvvm uo5..,8wa pn gb5xas Edison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lim5vp,wb u a8 5.o.nvgxghtbulb 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 res2ip0j z5dtngaw/7 1jl istors are made of the same material. The length and radius o15ji7pn j awgzt /0d2lf 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 resistance R, are connected ti5 eclmk3lg c;y;i46 to a battery in the following way: “Two resistors are connected in series. This combination of twmilce cki6g 4; l;3ty5o 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 accsfe 9oi 9.n4fhompanying circuit diagram has internal resistance 10.0 kW and 9 oh s9f.i4fenthe 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 thraf/8icaopj 9zl/u 4;hee bulbs 1, 2, and ;ua8z lhc/ 49j/oapif 3 - represented 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 at the right. I2 js qpp.,:jquf the current in all three resistors is equal, which of the following statements mustqq,2p:u.p j sj 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 composeruuwl8n .,c9mt+ 4zbwxu )(y ed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bul.,xe wrmt u8bl uuy4)cz9( +nwbs)
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 concerning the simple 9 xaho m,ae:;ncircuit shown where resistors 9e ,oam;:a hxnR1, 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 series to a battery. Bulb X is b .*vn:o k,xdjs7vo) lxrighter tx,ovl*: ksxn7.o )d vjhan bulb Y. Assume all circuit 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 cq4audyw1b;l4h)4co.n / wklwill pass through the identified resistor in 5 secondsk4 )l1hww n/y4a. 4 qccld;oub 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 t,cz(zc wgn, qf. ;r e2kjo7gi4he resistors in the following simple circuit have the same resistance, which would dissipate tjgzq7k.; eo( ,r,ccw4n2 fzighe 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,3 ):4 y-t9bcmqjz*zc ujcjdc6 the current through the 6.0 Ω resistor is 1.0 A. What is the power suqc*uyc-mc3b9 jz)j :4jz dc t6pply 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 ljojf9+ xk6nj/mx-7 lyy6 v8 qin series to a battery. Suppose R1 carries a cxo-+ fx8ll/jv96yq ym k7jj6nurrent 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 are co)+t t.sd;odyn.m ,hrznnected in parallel to a battery. Suppose h+mtnto;y sd.z,.)dr 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 rate c+aa,haym: 59lxqe2hd 1200 watts and 120 volts. What is the maximum value of the curreha2hx+qmacy:5a9e, l nt 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 6q;0 mvp/r2 xzu0 watt lightbulb designed to operate at 120 volx0qrz pvm2 /;uts?

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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 thaqgltxs4lk p)+i7*9twdw+rf 8 t is dissipating 36 watts of i tdfpxwq* +7+rls8kgw49t)l 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 pressmac)k 1fu0h cp/ exfd3. 2ymr1 clothes is marked "120 volt, 600 watt.” In normal use, tcy.e1rm fmp2/f13 khu xa dc0)he 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 cired-lf4s e4m wx:e;+jm9o m1w lcuit containing only three identical 6Ω resistors wes: l1 m-+fmlweo49 mexd4j;?

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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. mj1(2we*w3/mfb. nq9 ap 6y hdgo5h-degb:am0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using aqdah5mjmm. 9ge:b2g d abyp/ -w1e( 3 f*6wnholl 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 together in differen. ym3 n:naz-kot configurations. If all three resistors are used in a circuit, how many different values of total resistance can be pr3nmza :nk .o-yoduced?

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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 resi; c .(ijid4otqstor is connected to a battery, a total power P is dissipated in t;.c dqi4(toji he 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 inwd +;pvzo 7 r+i4z)kpa parallel, the equivalent resistance of the combina4wpi) rdza p ;+v7z+oktion 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 suc8 eng+, it7nrsh that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time ts7nt8+ig rn ,ehat 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 fllk;z-u m2 hf8zv /jq9sows through a 4 ohm resistor that is dissipating 36 watts of powe-lqmsj ;u2/ 9zfh8 vzkr?

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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 13x* ntfi7bgwr7ay 1jf+4 +sw3a amperes of current when connected to 120 volts. If the price of electrgb nasw+i+1fjx7 ftw347ya*ricity 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 mu w,b c2o cydtuem2is0::c .ie:ch would it cost to keep a 100W lightbulb lit continuously for 1 yeac0wtcic 2::,.doyesub2: ime r 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 results in a powp+ zl2scvu.0g/ b 7ax0prtsa /er of 24.0 W associated with the bulb. Which one of the following choicea+rz./s2p u lb07/ sptx0a gvcs 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-agt su:8ns* pts in a 120 V circuit. If all com -tusapg8ns*: puters 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 four resistors to my.(6ds 8b2tibvoe :l form a simple circuit d(tlv m . :s6bbi2y8oeas 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 - bk oary;s6ov j ,d/i89nbc:wconnected to four resistors to form a simple circuit as shown to tyor;akoi/b 8dvc nbs9j 6-w, :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 battery, an ideal ammeter, a switc/vmkd +e u0:tbh and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperdk0 utm+/ b:vees.
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 j1j z w f;rsx*j9-r1na lze(k,switch and three resistors are connected as shown. With the switch open as s ex1kj nazl;*1-wsrj r(9 ,fzjhown 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 resist* bp;m 3cy0gnrg.y 9ffors are connected as shown. With thn fy*pbgg9;ym0.fc3re 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 to the right, what is the equivalencr t to-hsr8q*; os;4et resistance? Assume that ah r;-4qo *oct et;s8rsll wires are ideal, 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 right wipsion+ c 0muzr285d *yth resistanc*ynpid2zo0+5 cr8m us es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistou/rtk; czrra9 6ayk/4rs connected in a combination series y /c6u;razrakk49/tr 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 fiawmb*,mv r9v (ve identical resistors connected in a combination series and parallel circuit to a vol,(9vrm * amwvbtage 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. Whi(g gdj9x-hyh0ch bulb will by0hg x-jdgh 9(e 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 three resistors arjeq t hvmb euna, vy:c5*2c)30e connected as sn)5jha2y*c,bc vq v u30etem:hown. 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?


参考答案:    
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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 re.g p8oqpbtn78iht8 0e y8dwk)sistors are connected as shoh7 tdow) yqpbe888i8.tnpgk0 wn. 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 and thdxle1k1pw 6)z ree resistors are connected as shown6kxwl 1d1pz)e. 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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    总分:50分 及格:30分 时间:不限时
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