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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,*a7yg t e+ o4elhk5+xcw4xe+o an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the dh* ekx+e44ta+5gw+ l cyo o7xeirection 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 paralleldvydf7 qju,x:) ,8mox*kvp -r , the_________each resistor is the same8v,7k xdrxqjd,u ov:pm *)yf -.

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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 ligkfy81fwz7-f icn 02yghtbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much 8 n-1z7wgyifcf0f yk2cooler. 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 LE f fj2we,;3m agxw/-hvDs. LED is the acronym for which one of the followingxew2 -,3;fgja/v fmhw 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-sectional area A. nhl4s/f2 *brj,w- zi*x/t yjqIt 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 bj,r*/nli* htjf/ q x4s-ywz 2old 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 twicr n0b. ewqtsdjb:hh k8mc )k w+:u8 8m.wagb1)e the diameter and twice the length of I. If I has rgwd mn)0.w s8+ rqhbmuc8.jet 1)8b k::bahwkesistance 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 material but has twice the diam)3d cmth3j9t n:a stfd.t7/rxeter and half the length of wire7d3x jt rs)hftn 3tcd.t9a/m: 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 (; uul3xuj2,c b aw1fcradius 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 materialulu1xacj;b( 32 wcuf, 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 Edyiu5y,v la):20e;bd w*fa pwoison wants to make a brighter light bulb. He decides to modify the faui0p)ol*we2dy,bw vy:f5;ailament. 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 e z-hyovzx zq q2-18q;are made of the same material. The length and radius of each resq2q ozx-1z qv- eyh;8zistor 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 resistare z: rb/6krl6du tj7*nce 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 c7ld6/r trzej bk:*r6u onnected 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 ditc ga;d5*-s3ns t2fc yagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most-s5tt*a cfc2 y;n3gds 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 three bulbs 1,xdxl 6mqac+givsr8 w72l 7iox( ws-03 2, and 3 - represented as resistors in the diagrams-qvl wlxg0( id2o+mx7axrcw3 78s 6i
- 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 circ1ztvkf/51nf *ptmk/l uit at the right. If the current in all three resistors is equal, which of the following statements must be trfpn5f1lzk1 /*/t vmktue?


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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 compose.xv) pteem )c6myo5 :zd of 5 identicalpv:ex6 o )m.my5e t)zc light bulbs 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 statementsccay .5gl2x (l is NOT true concerning the simple circuit shown where resistorsx (2agl y.cc5l R1, 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 aza 4z 8+:ylvquaj9j m1 battery. Bulb X is brighter than zjl:qyua18jz9+ v4mabulb 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 will pass through the identifi5sti y e- hi7rb;6(qs7zvdpasl 34h1oed resistor in 5 seconds once v7tsqe467 iob-srs(zih hal3 5 ;py d1 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 cf v e;njh7o(f.ircuit have the same resistance, which would dissipate n; eh7j(fvf .othe 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 accompan,2vko;p. d l+u .mxraoying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage Vxvkur ,+..load 2mop;?


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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.27: Three resistorssxk35,zff 6 ub-c 3w85xujpx f R1, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistan5 ukx835, zwx xp-j6ffb3fc usce 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 ar b:.r gbnw kxf/tbuq9 91g/hc(e connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dic1r q twb./9 kbg/x9g b:nu(fhssipates 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 tac(,zcedtb 2it7wsh 7:7t 5 frhe maximum value of the current under these conditions 7 wb(t:stz7rce72adcft 5h ,i?

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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 opera269bdc. xsbklt;4 e0t;idq vute at 120 voxd tbcb e.q ;u49dk;06tlv 2islts?

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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 dissipating 3ympx3yhgqp3u b8 11* d6 watts of powe8pd yupx3hymg1q*13 br?

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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 volt, 600 watt.pfz6k)hu y qdip(10kq:h:h(v” In normal use, the vzd:p)hkqfp0hku(i6 h (y1 :qcurrent 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 circ lzw-(3czp jh:uit containing only three identica:z3h -p( lzjwcl 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 resistorsosdn 0aqjo 7-hy t2b-1. Which of the following equivalent resistances CANNOT be produ-j2yqbat 70h1-d oosn ced 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 resistotw72w4/-d i ,4 ypjacihtco4r rs of different values can be connected together in different configurations. If all three resistors are 7c2tpihj rt 4o w4cya,wi4/- dused 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 is connected tc*a;by:t x rgez8aq 38y 66vibo a battery, a total power P is dissipated in the circuit. How much total power is daybc :6q6*zi8 b38e; rgyxa vtissipated 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 respu /*: ,snodojistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances sp ,u:/o *jndois 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 wheno ip8 h*czz txuuqe+(-+y9az7 operating at 120 volts. What is the minimum amount of time*ah8u-c (qio+9e7tpu+ yzzzx 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 through a 4 ohm resistor that is dissipatinghoktg54 3na8e pd hq5) 36 watts of p545 kn hp8h )3adqteogower?

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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 h27 0h (no6gos5yyx*kzn59y/owjp oonx *da3y eater draws 13 amperes of current when connected to 120 volts. If the price of ele*nz 6nay(j 9yxo5ys*oxo7/2 0gpw3 oynh5 dokctricity 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 c/3kmh1k 8jnx dost to keep a 100W lightbulb lit continuously for 1 year at a rkx3/hjd m8 1knate 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 t*f5lx93yi4au vgqsp ;hrough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of thqgi5 ux9 vf;psl*y 43ae 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 sr buat9vu( o 3*:52of pk5bblaix owns a computer 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 computers can be operating at the sam oa9:bork3 p5l2 t*vb5ufb(auetime?

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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 codp kg(vh +w,1snnected to four resistors to form a simple circuit as shps,h wd(k1+ vgown 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 resistorcgnhle1c+owspqs i4* u8 d)// s to form a simple circuit as shown to th/dhu o sq)i+/1gce8*p4snlcwe 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 amk+joxq 2s8nu-meter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperej+ -o8 k2qsxuns.
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 and8ex4 fb:n)/xyzrryiw ,y p4- ygk b9p0 three resistors are connected as shown. With the switch open aspw8k 0gz4 yxxfeypr9 r )b:i4y/,-nby 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 thre(:5lakx j79 0f gedjc,cc9tq fe resistors are connected a7 d:q0cetc9 j(xl j 9gfkc5f,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 to the right, what is the equivalent re4fft1dq .a7x(, tcbdysistance? Assume that all wires are ideal, the battery has no internal resistance, and fdf.4ayd q1b(,x7ct t 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 theed)j xpl+f l(qm;z*w4x tp+(d right with resistancppl;+ (xqxmdl4w f dz+je)*( tes $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resiffcj7/6 ka e4lstors connected in a combination series and parallel circuit to a volt46kfjafce 7/ lage 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 ide8b ;n.9+6qmu ygj/urc jj nr/kntical resistors connected in a combination series and parallelruny+c ; b/jq.r g/n698mjjuk 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 are iddd o vt.ih 0m;3zq(snfxt,81 bentical. Which bulb willx0vo i8n(q ztdfmdt1,;.hs b3 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 resistorsq0y-z ,n qru:zmqa*0/v wlq 4v are connected as shown. With t- qa/ l0 mrz yuvqz0v:qqnw4*,he 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 resistorrt2;:l h qvvq+s are connected as shown. With the switch open as sho2:q hlr;v+t vqwn 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 xm:6q tn.hn z3op3yv(lw 2wr8ammeter, a switch and three resistors are connected as shown. With the switch opyp3 8 olvw.(t z3:6rhxwnmqn2en 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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