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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 ea6j/5zyti2n s6v:v wj lectric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the res j:v26vi n5aw6yzs /jtistor 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 connecte9vn03ehvlqr 3.-s lyk8:o hi ed in parallel, the_________each resistor is the selhv -oqle9yh8r s:03ki3v n .ame.

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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 light nu9xan ;q+nsmf uk7)3gl5jj( bulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooleram3g 9s( ) jfu5k+;7jnu nxqln. 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 0tj7554i: s c35 leml uagdeb2cqvu1e LEDs. LED is the acronym for which one os mlt e1iv5e25c30 jquulbade4 :g7c 5f 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 lengoa2hdw(w 2 bwor+:es 5th 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 neshw 25orb2aewd(+ :wo w 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. Wire II has twice the d0pu ij1cu :1qviameter pq0c1u u:ijv1 and twice the length of I. If 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 the same material but has twice the diametghr bt:v6-otgeeqz1 9aq6+- e er and half the length of wire X. If wire X has a resistance of R then wire Y wouleve9 g tazg1 6qbe-oh :6qr-+td 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 re aromz3shx dc9o7qe-2s0 -as/sistor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happensco7x mq2 / er-3dasa0ohzs- 9s 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 buly iatq/ ,mwehkbk-* 3;b. He decides to modify the filament. How should the filament of a lightbulb be modified ie;wbaq ,kk*t/h3-imy n 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 resisto bg:kxzw.5xzb bveg: mc+z:.x2mby *g.*v+h ers are made of the same material. The length and radiuscmxz +y:b.+wevx 2k::xg. .b*vzh *5eg bzmgb 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 of resistanb3,me6,ugx pp y;xwn+ce R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connecpx6mnu e3,+ w ;x,bpygted 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 accompanyiz6 msd/d- t6z/jv(pntng circuit diagram has internal resistance 10.0 kW and the ammeter has internal resi/pz6 tz n/-jmds6v t(dstance 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 thr xe3lcq4(f,cy hk,4zkee bulbs 1, 2, and 3 - represented eclcq3k4y4, ,(kz hxfas 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. If theg1gj*p wn.e f) current in all three resistorn.gw)jf1 g*e ps is equal, which of the following 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 a6vosm e- ap(g(vtbs+8t right represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight ce (saem8v6tpg(v+ so-blls. 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 fyr/ lu bmq2 z;.ap:dv po(zzw(0 94kbqollowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are h/u:zq 9b(bd;zmaqy.w(4 przlo0 pkv2ave 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 zy 2swx 8 y:dgr,j;gh5X andY are connected 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 each other to the sam5y;gz:xg yj8d s ,hw2re 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 th0es;w 51eu.kp sm3x xjrough the identified resistor in 5 seconds once the circuit wa1.xw ;me3 xuje pkss05s 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 folw*0iu 0g6q nujlowing simple circuit have the same resistance, which would dissipate the greani wu0 60q*gjutest 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 diagrc1f7s2( 1r r*le ijwnjam, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply(rc1f27ilsw1erj nj * 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 c w/makq7we gd9 pocw* .-/nl7fonnected in series to a battery. Suppose R1 carokwacqefn w97/gp .l/-m7d* wries a current 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 aryya9 s9p9r: gb)6a ryte connected in parallel to a battery. Suppose R1 has 2V across it, )sa9p brry:y g6yt9 9aR2 = 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. 3b4v/s ok6 wurqjx.:y What is the maximum value of the current under these kb.u:qxr63wvoy j s4/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 designed to ovxvx.eyi,+efna6l 73dw w( 7aperate at 120 va+7wdvef(x3 y7va,l. 6xwe niolts?

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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 4.*k4 cnbd2s/(o kvgq+aw ttjr 3xd3 kthat is dissipating 36 watdq . 4svjkgk2dt3x tao3*nk /b+ c(4rwts of 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 press clothe/cgk e +;a g(rel.bg .fy+sq6ws is marked "120 volt, 600 watt.” In normal use, the currentgfbg/ rl.e.ck(yaws6 e; gq+ + 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 circuit cokpmhvxmy0 p-x 6+ 9gf7ntaining only three identical 6Ω resih9+gpmmy -0xk6x7pf v stors?

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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 o baebxs+( ..skt+bb/ht-og/g f the following equivalent resistances CANhg/-gt .e+(+skb o /b.bbsaxtNOT 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 duces ei*)5s+dorte5whstt; x)rg4 r6z (/iv, ifferent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total res ei*6ogerxvtstz55r4h;se w ci(d)/u rt) , s+istance 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 battery, a total powerv2.k1pma yzq*j -ss21lzd0xf P is dissipated in the circuit. How much total power is dissipated ld1 2s.qz1af0 kxmpzv2sjy* - 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 anpl; t(x , oypfygm63;r33 k sgqbh84rdd R2, are connected in parallel;p m3 3k;3(6str qg, ydxl4prghyfbo8, the equivalent resistance 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 +m3w e qnnjo ,yfz ,i1onlrc44h4n2+fdesigned such that it has a resistance of 12Ω when operating at 120 volts. What ishn4nioqfe4 2o1 3n4+ + mcryl,z fjw,n 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 currentp eoj u3fsa :*xhg vvuh4*r4), flows through a 4 ohm resistor that is dissipating 36 wath*u34uf aj )ehos4v,rgvx: *pts 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 connec d170jt1dib; o+ik cpqted to 120 volts. If the price of electricity isjq1 oic k+tpd0;d i7b1 $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 u(rxewt9yo7e04q ssmi s8 ()hlit continuously for 1 year at u 9 4r si((htsw 7omeeq8y)x0sa 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 gyelmhrzix9d, 5* (2s A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of(l*2 rgezm9d s, 5ixhy 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 fam bom)h7+;g gsyily of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged intohbom 7gsy+;)g 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 fc/2)eqrka:gl /+xdvu d,q2koorm a simple circuit as so)gv/ qcl/q+ ad2dxrkku,2: e hown 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 resistors to f,s (y 2rbq5ll6xmgihng24 / bxorm a simple circuit as shown to the right. lr 24nlb5,yx hb6/xggq s2im(
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 batteuo az8xk7)9ndm/. ihgry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampereua7 )9hnkgoz8 id. xm/s.
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 a;xlx5y+zlus y 0g56zd5(zl wygp7k;rre connected as show +;xdg( l;r pk7w0szgzx6 z55y lyyl5un. 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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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 resistors are:p2:k l7af+zov) ryx q connected as shown. With the s )xv2p+y7:kqzaof l :rwitch 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 re:31 7m6jdq 0u3cznpdzuz*uteb+7 phj 0adkg) sistance? Assume that all wires are ideal, the battery has no internal resistance, and all th+p3c01 7uh 3 uq: mdp*zd)zj7kba6e0djng tuzree 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 x .w 9a nywpx0mnb4n3yi8i+x9the circuit shown to the right with resistancnb0x x4+ymiap 8ny.wn39x iw9 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 resistors connected in a c eb 42e 1:*c87,iw1dd:- lyd;creibmkhzg pqyombination series and parallel circuit to a voltage7dye4;q8,1m e2-kd:c lhbc zeg:wibrdp1y* i 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 in a combiciuj78 6 o8nuunation sei7uuoj68cun 8ries and 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 th xsz;e79fnf: a0uq2nwe bulbs are identical. Which bulb will be the brightestq92 ufsx;70f:n ew naz?


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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 idealqjd /2s+q tg..emkgq:s*;r;rn7 hey t ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads e+n sh7e* ty:s/rq; g .td;j q.mrkq2g2.0 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 ammete5dtlp *.0mdlrj xi 1z8 02ulbmr, a switch and three resistors are connedxbi l8z t.rl01m l5upjmd*20cted 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 ideal ammeter, a switch and three resistors ark;2 e/xqk5 xsce connected as shown. With the switch open as shownc k5qx2;e/ksx 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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