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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 exis75 3h -pltifcxu;y:kits in the metal resistor connected to the battery. Which one of the following choices best describes the direction of et5;fp37yx u ih-c i:kllectron 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 qy/z27nux8b96brch ial, lcqel)(x *connected in parallel, the_________each resistor is tc8/xi y7anhl* c9elurzq,6xl q(2b)bhe 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 a ligh9)phldu,-qwf+z;idf *8 wdwgtbulb causes the filament to become white hot, while the lar9,u ;* -wlid fpd)dfgw wz+qh8ger 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 household lights are being red4 x;p rzbc9xs, a1;fnplaced with LEDs. LED is the acronym for which one of the r1 ;xab9 c zn,sfpxd4;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-sectip6n slca 6zu fyk- 4nlb:2abfw0; 76awonal 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 cylin;ab6s l64:fp u7y2baw czfwa6knn-0ldrical 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 t0+lq yz(whxn:lsbi b91fqs 66 wice the diameter and twice the length of I. If ss+ q0( b 6lnh:9wfzyq6 x1bliI 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 m4jbia+fp77kx-,hab haterial but has twice the diameter and half the length of wire X. If wire X has a resistance bihh, k4-jaxb p7a7f+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 rar n:y ft 48h4 yd+rprpc6y(3qtdius 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 8r(pc yyn6:44+3prqdr hy fttbecause 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/8 tygbvfjan+( i di6( light bulb. He decides to modify the filament. How should the filament of a lij6( t fib( /in8ayd+gvghtbulb 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 of the samw(btl-zp f/+w e material. The length and radius of each re+bf(tw p-/ wlzsistor 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 resista1j3yk p8 ttp8gnce R, are connected to a battery in the following 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 co t3 g8yj1kptp8nnected 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 in3ptc8o6 pz9*y,xh q um the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter readi *8u,cxq mo6ppy3h9z tng 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 circug 6xxrqd1co5fa63x; b++avc qit shown to the right. The three bulbs 1, 2, and 3 - represented as resixca af1qgdvq rx c;o566b++3xstors 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 toaxv h)h8.0, v 3 emwt2oz)gbche current in all three resistors is equal, which of the following statements mus.hg w) tz 2xmhvcb ve,o038a)ot 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 t :,w o6sqr.am+e)gtjvxm,d g-ziybwu 7 9.h 6circuit composed of 5 identical light bulbjw7x o69bui:,e-d .+ yqwgg6 ts .hmmrt ,azv)s and 2 flashlight 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+3bgk6pjf6lu atements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal re66bg+j f3luk psistances?


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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,s/ir2:ed no t to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideae,os/n tdir 2:l. 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*ddkqj2 v6 px7 the identified resistor in 5 seconds 7x kdvd p26qj* 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 ,wms;(r f/bex simple circuit have the samefemr( w,s/;bx 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 accompanying circuit diagram, the curreb x)7-jqcksly*0qm d:nt through the 6.0 Ω resistor i)q*:y 7 mkl qsx0dj-bcs 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 ahj961 rd7iky g*)a1x gl.wfnrre connected in series to a battery. Suppose R1 carries a current of 2.0 rjn1alh6di1f. kwgy x97*r)g 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 y/aom*(8mb f4 xpoyr*are connected in parallel to a battery. Su4*p f (y/* brooxmmay8ppose 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 i bp9vkuk.r60 is rated 1200 watts and 120 volts. What is the maximum value of the current under these9.vi rp k0ubk6 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 dez,cylv h. r8uy:nnl;b 8 :6t;vigkvy0signed to operate at 120 voltv6zn0hlkv g;nr:t 8c.:y liy8 ;yu,vbs?

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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 throui h ddio3/(m ku:)jx 61msh*engh a 4 ohm resistor that is dissipating 36 watts of poweh6 kj(de)iuo /sxdn*h:m13 im r?

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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 vo )nlsm -hujf9 d9hw dr4+:,tgylt, 600 watt.” In normal use, the current in it +rdud,w 4ns-)ghly m t9 fh9:jis

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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 c vox:khp;vto jvut* qh4(n -2 i9lg6g9ontainojn-v pqkt*vohh l u(v;t6 :xgg929i4ing 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 Ω0vzy.yu5 ujnwo;b0 w* fc k4e( resistors. Which of the following equivalent resistances CANNOT be produced using all thr.*eu bf vkjcown0wy50u4 z(;yee 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 resistohe. *;9kfrblxx q4wry2 y0y 0urs of different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistanceqkrxx90rybh y;feu *.0 wl4y2 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 batt* w3*0 i4y4b4j869ugknsr 3/ zkduffqigb xfwery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n idenfg8/fj9 wkqfx044gb wn63rzuyb*4kd us* ii3tical 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, all20rwt 7a,vl a:*e v ain2z5yre connected in parallel, the equivalent resisn,2avly ra7*0 v2lalw zt5ie: tance of the combination 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 such that it has a resisthh :2v+lcm.fo ance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to wfc+hh l. 2mv:oarm 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 36 wa; ucivh;1grg /si.sjr 5h5v: ntrcv;5 guris .jg ;:hnih vs15/ts 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 current when connected to 1d95blj qj.,m;xm aij620 volts. If the price,xi;ljdb6q m5 mj.aj9 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 lightbulb lit contdi:)3razcbhk 2 -r sq2inuously for 1 year at a rate h2a k)-qsr2d :zicb3rof $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 a drt n.*9ge*.8 fmorxresults in a power of 24.0 W associated with the bulb. Which one of the following choices best represenra8*n9m.ro tdfxe g*.ts 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 cow13,,juyf jhqmputer rated at 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 computersy, hq1wfjj3u, 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 isyo*/ geu5s7kfy u dp 92id(v)g connected to four resistors to form a simple circuit as sho2)5*edus( vy7ogudpf y/k ig 9wn 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 7dicf)u 2 gr9z0f3adr-wn7rmis connected to four resistors to form a simple circuit as shown to- z7ad frr fwg0n9m u3d)r72ci 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 ammeter, a switcnnb4q8n crj)- h and three resistors are connected as shown. With the switch open as shoc)84jr-qnbn nwn 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 resistorsbr0o vw2 lf5j b2.-qyk5 6votxor89zj are connected as shown. With the switw-oor fjb5l2 vz92rtv06b j yxq 85o.kch 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 ammeyx 5iyn1o .7fow-j36; rlzwbw ter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperesb6 y7n.owlojx15w f- wiz ;yr3.
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*m q4xidz;) fa equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resisto;m da)xf* i4qzrs 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 3mgni)*3qv zz the right with resistance *3vz3mqg n)zis $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistors connected in a combi56qkoie1e:(-y lcg3 yxm5p o.c6qg ln nation seri-56lx(gpql.3y1 c:oe6ky nq coig e5mes 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 s ne ; 7;syx50gy*bicomhows five identical resistors connected in a combination series and parallel circb;y;y0n5 so* mx gcei7uit 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 circuitvg7 m , gdyse1o46:wolm6 o3cq diagram, all of the bulbs are identical. Which bulb will be the brightest? g4yol,oo3 1cw66:qmvg7 emd s


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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 idan gr z59x.lijb u0.5aeal ammeter, a switch and three resistors are connected as shown. az ux.j0.r55i ban9lgWith 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 three resnl3 n vkw1dv70istors are connected as shown. With the switch open as shown 173dn0vlnkvwin 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 three resistors are condz10:;b vm */c aaafwdnected as shown. With the swiav*dmwa;za/fd bc 0 1:tch 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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