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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 cu8kt6*x7l t- tqqtw1 sc r,efc:rrent exists in 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 thrt6r, * q71ct: qte xwsc-f8ktlough 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 cov bgd7 +h/d1 qg4fzhq(nnected in parallel, the_________each resistor is qbfzvg +/7 g(h 1qd4dhthe 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 ther*dcr - q)ud* bxf *i17xitiz5 thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens beca*btur5qf czdxi1 r 7x* -i)*diuse

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.08: Some standardtfl s 3)d/3ksj household lights are being replaced with LEDs. LED is the acronym for which one of the)tsj3df s k/3l 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 qeqh ,f zz9rb4oj;j1 /q e xw2mzf bt-.f..i*rL 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 oe ffzb4qq 1j -;eo*,xr2.qbrm.wtz9/f ihzj. f 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 twicez 6u+d gd*5yhk the diameter and twice the length of I. Ify *dh+uzgd6k5 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 4q hyzggt3c3q qp( -f/the same material but has twice the diameter and half the length of wire X. If wire X has a resistance hfyg (3t /3cqqp4gz-q 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 o(jje lk185fz r. This piece of material is then drawn so that it is a cylinder witj8( ke5 1zlofjh 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 light bulbz+f8vl 3om;j bo m4zq8. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given voltagv4o 8mz 3zf+l 8ojmq;be?


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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 same material1 ; n)m hgdvyu1i/sk-d. The length and radiusm ;)1h -niyd/1 vudkgs 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 of1f 7(aklzv aign-xh-0 resistance R, are connected to a battery in the fol (az fh7-xalg10-ni kvlowing 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 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 thesey99 cy23( ;ksj wzby accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internalk (9cejy9s;zy b y3w2s 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. 2+tm:aj bb-x+s.m renbt8tvtg; ft* -The three bulbs 1, 2, and 3 - represented as resis+-8 + nb:2-.marv ett;tjxsgft b*tmbtors 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 th9,xznelox )a6z tu*c 2nz,z,xe current in all three resistors is equal, which of the followixz9l ze a)nx6*nx,uz,2tzo, cng 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 electrdwf o 33xwzi5 1f1v b6fprr3*qic circuit composed of 5 identical light bulbs and 2 flashlight6 3f5frp xr331bfo qw* i1zvwd 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 statements is NOT true concern0ov aty 4a pet8hm(64ning the simple circuit shown where resistors R1, R2 and R3 are have equ4(e 80atno h4atpv6ymal 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 connect(xu , 5w7xm6gwsblis/ ed 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 eachwi bxs,m( gu7/w65sxl 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 w-:hy.o kt 2 xpi(eaigr 78az2pcr7t, through the identified resistor in 5 seconds once the,ypx g72 (rte8ir :2tz7iapch aow-k . 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 followi(v3lmg+8da+c l)s kning simple circuit have the same resistance, which would dissipate the greates)mc+v8i +ang3kl lds( t 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 cirj /u/9d*z pdsf;:lbo8pwnl5zcuit diagram, the current through the 6.0 Ω resist pzn;*/wbf sl o d/dup58z9j:lor is 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 connectes ,v l w3 gnwr4slrzzkr32t2/*d in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. What is the vo * ,3tk/l2rws 4nzswrv3zg rl2ltage 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 and(a)m,rrlj p c59bypds- :w5j aR3 are connected in parallel to a battery. Suppose R1 has 2V acros arjb5ys)9,pwp(r: lmd-5ajc s 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. Whatd2 oz3hwnkf3. is the maximum value of the current under these condikw.2d z33noh ftions?

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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 op3y yis2 om03znerate at 120 vom3yosn 02z3i ylts?

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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 curr nsb9xl 3f urh00sf+b,ent flows through a 4 ohm resistor that is dissipating 36 watts of power? nxf9rs0bbf3l h+0,us

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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 isn8d(am/q wi o7olwe9u t;h 20u marked "120 volt, 600 watt.” In normal use, the tu8l ae/uhwwno;miq0(o792 dcurrent 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 2o4 p4rscclag,z 6 p+bby a circuit cont 2 s6ozbcp+p4r4,alcg aining 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 resistors. Which of they0x+qzu d us;( following equivalent resisyz0s+u ;dqux( tances CANNOT be produced 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 together in differenw ()bkh8b3mdct configurations. If all three resistors are used in a circuit, how many different values of total resistance can be produced hb(3bw )8mckd?

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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 connhtf)j) whlmiq0-5.hxod,:v2v1 kx rb ected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuiklfixh.v1d)j,wvob5r )qh m:x-2t 0h t 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 in pj7qd- 2l5n3u- wulnm8t yn xm4arallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the res nn 8ully7x45d-mu mwtnj2-3qistances 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 whpvc8g4* sy3b ken operating at 120 volt c8b4syg*vk p3s. 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 curre3z5b8igesb h s y/jivtr(c 960nt flows through a 4 ohm resistor that is dissipating 36 watts of58czv6syb( 0i3/rjs ht9iebg 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 current /fnu8b5zug)jp i qp+6qi2mk- when connected to 120 volts. Ifjf ibn/6pzi5qg8+ u)2- qkump 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 w7dci p.v bg/i+ould it cost to keep a 100W lightbulb lit continuously for 1 year at a rate oicb +7/.vgdp if $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 cu*t/ad7m ;kgtg rrent of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which otmg g*td; /ak7ne 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 agk0n0-;ed8 uayb h* w giq+juai3 cr+.t 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum number of the computers can be op+ykaj*.gg e0-nwub 0ci3a 8 ri;d+uqh erating 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 fo0pu6no pjt/l6x( pztm8 :)zwj4b l8eg ur resistors to form a simple circuit as shown to the right.jnoppwj:zp88 4 6 t lg belz)(u6m0t/x
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 r;-kz l) yac/ccgdmo .)esistors to form a simple circuit as shown to the rightgoam/ )cyz.c dl;-)kc.
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 am 5m;o6 *yfd0pdpdf: uzz-k,/nifb1 yj meter, a switch and three resistors are connected as shown. With themydy5 fuoizfdbk-jp 6,:nzp10*/ ;fd 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 c95 6a(/vpp6v6fn rour jlh(aw onnected as shown. With the switch open as shown n/ap l6((6hj v p5af or6uwr9vin 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 an9cnq *pte+kwvco:5r ,d three resistors are connected as shown. With the switch open as shown in the diagram the amv9n:*otq wpc r+ck ,e5meter 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 show0d tc g*+jk6 hace3w j1fk, 9x,7rlmmsn to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, a, j kfk7 m0, ht+gxwclejr 9s63d*c1mand 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 with res fu+ gk)+(+vep)khjpqistang)+ (pvhu +k j+e)kfpqces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resho 7li u,j0 g+txyc0,txbik /c0m(g5q istors connected in a combination g5,/g t +c( qk7mxhbyo0ijclti0,u0x series 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 connected ir:fuj )hye*yk-h275/ k xpv bjn a combination series :fhj *27bxyye- /h)j kp5u vkrand parallel 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 diagram, all of the bulbs ar+.g84sfcrkop3pu ;cuy, 7ajq c :zd r-e identical. Which bulb ,dp rcq o c;p+a3k7ry-gc fu.szj 4u8:will 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 three resipn wr6q kzjq( 6 ldlsys+06 9w)7qnpf3stors are connected as shown. With the switch open as shown in th9 )rnjl +q6dlspp6qy0( zqw f3s7wn6k e 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 idl1a:x0ro4 tzj9yf o j8,x4d+as1jy ammeter, a switch and three resistors are conne:zx4idxfaa o y81j1jly r4+tod,js 0 9cted as shown. 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 idea +svg;yd1,yoq l ammeter, a switch and three resistors are connected as shown. With th y+sy ;1qgd,ove 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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