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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 ) eb1fm( vmw+bpwl3:g 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 ele+vmlg fwm e13bw: b)(pctric 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 c)wxoemsvt;/gpe; *)p onnected in parallel, the_________each resistor is t/go;ew*) m pp; etvs)xhe 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 thrde /,i5idasx)((2q h:tdt zozn77nv sough the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much coole2zidivt dq a(n7xd:(,zsh e t7/n5)osr. 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 r,5 u7y qs); pjcsf4q3gg wnea/eplaced with LEDs. LED is the acronym for which one of the fol ugyfcs5s j4qnw3gp/ ;,)e qa7lowing 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 are; 0f2m2boeypmh /eexgf cz7l-e0q 7h(a 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 cylindrical lmhmgfe /7px qch (eyz 7;e0-2 b2eo0fresistor?

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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 mad:bjx rp;d aw;:s//8hinz9qoss/ de v;e of the same material. Wire II has twice the diameter and twice t9djd 8x:vss re pn:q hzais;/ bwo/;;/he 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 6pv+foz-fip : mvtr nnw7-*3rdiameter and half the length of wire X. If wire X has a resistance or*f wm7:vf6ov tnr- -+zi3pnp f 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 cylindricaly jtpt9g)9t0j e61oih4g sa x/ resistor has length L and radius r. This piece of material is then drawn so 940)6ojgegh p 1asjy i/xttt 9that it is a cylinder with 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 bulb. Hen:6ac01lwzi ;xd t*v g decides to modify the filament. How should the filamentlt6xzv*nc :0 aw;dgi1 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 are ma b2+.) o0yh:(ipcste.+tit cevw rco8de of the same material. The length and radius of each resis8cr. 0o2 tebtic hespi.yt) +wvc(:o+tor 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 resistanqn;b:d5kt7g 7sl +qtj* c.c:)pnbhvxce R, are connected to a battery in the following way: “Two resistors are conne7v:+j qt *;xn).cchdq7kpgbnl : b5tscted 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 the accompanying circuit diagram has internal resigye 4o y.0sp*mstance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmete.*ogymy e04spr 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 ytur a3z 299p8j tc /3hmxfs5bthe right. The three bulbs 1, 2, and 3 - represented fysh2zx brtap9t9 cu/3m3j58as 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 c2 x6p) z.vqf d8rlmgi/vyeg,1 ircuit at the right. If the current in all three resistors is equal, which of the following statements must be t6.gz,v)gl mr deqvxi1y2p/ f8rue?


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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 ..lk m* 3yfu8 ya*irm-a)n: 1rzaecx yelectric circuit composed of 5 identical lighic 1)me a.rf3* ym:uaka ry ny-l.z*8xt 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 statements is NOT true concerning theup(ln ,8ubnw + simple circu(l8, n+b nupwuit shown where resistors 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 codk4xm q ao;*,jnnected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are o *;xkqma,dj4ideal. 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 tvi+r1 +tzt5 cnhe identified resistor in 5 seconds once rv5nc +ti1 +zt 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 circuit hav (0n kfxt0ky,he the same resistance, which would dissipate the greayh00 tk,fkn (xtest 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 current through thef jr;(;g4nu:z)- uoe + owb9zvnen (kv 6.0 Ω resistor iob)we4gnn-f+k (eu9v;zr onu( :jzv ;s 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,s. qaa8 tjj7:ecx)cc7 and R3 are connected 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. Whatc 7qac:csjt eajx) .78 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 abm)3tchnnz- ,ndR3 are connected in parallel to a battery. Supptmz)n, cn- 3bhose 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 rated 1200 waleyq3mg 1- + tad6dnqt,5d9b otts and 120 volts. What is the maximum value of the current under thes,edd b5 lq6y1t3qmg+ ao9nd-te 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 operate at 12)t* ker+qy(zbcpp :/y0 vol*tk +q :p(yypb)c/rze ts?

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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 4ml.;n79jjgz ld /+omf f2memy2 ,azo 4 ohm resistor that is dissipating 36 wal+lamo9 2nmmg f7fj;d/mjz 2o4e yz .,tts 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 clotz7)5p q juwo6jhes is marked "120 volt, 600 watt.” In normal use, the current6 )pujq5ow z7j 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 resisti3algwuj9/oh;v hgqo4j ;7 qb*i8; ivances could NOT be produced by a circuit containing only three identical 6Ω rhq*jio/ i;vhqwo l a9ivgu g3; 84;bj7esistors?

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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 the following equiva dpa(/my v em yj/;h 2yin(yx(n3bwih* 0yoa-+lent resistances CANNOT be pronha*eo;yxj(ady+pw2yi(ym 03(ny/mbi h/v -duced 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 valueziam37rqjyl 7)6jo r v7om:o;s can be connected together in different configurations. If all three resistors are used in a circuit, how many di6oyq o7jvrjm)o7 r:37milz;afferent 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 to a battery, a total power P is dissw z7rhhjep6( c+n; 1feipated in the 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 z+1ee(chj;7 w6z h frnpero.

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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 resistancetiw;3licgm c(s3 u-:u R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Whi:itg 3(; 3-mwulucs cich 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 sul f7ixg8. x)hhch that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water froh lxx87if )hg.m $15^{\circ}C$ 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 36r96:i67yjze q tf fu8n-ksxp;mh0w5t watts of powe: 0656hi kztxpf 7wsu8j ;tmq9f ey-rnr?

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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 oy; eu39./o z ggfe5gich:/nal f current when connected to 120 volts. If the price of electriygc .gg i:9e5/u/3a fnezo l;hcity 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 wou0v+7cf qz9qd1nlf8mc .w i pf,ld it cost to keep a 100W lightbulb lit continuously for 1 yea + fi1zv,d9 fqlfcmp qnc08.7wr 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 thryh 77k9u 22c,tfrlcq;n.3)t ghlc mj jough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistgh97q c,c 2n.rmlytkhf3j)j2t c7;luance 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 watts dl*)p) rzer6 :zglhw 2in a 120 V circuit. If all compute lwl)drz* r26:pe)hzgrs 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 connecteda1q dg peyub9. nzr,xdxvr ( wap79a5( i,35rv to four resistors to form a simple circuit as shown to thn eapuar(rid (xbq3 dxv 515,z g,y79.apw9vr e 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 isfzt n ;u d* l1me;feb*r9jlq8mcjj8+ 1 connected to four resistors to form a simple circuit as shlbe8j*f;9zm +8m1ldj q*f n 1 rceuj;town to 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 idaiy(*m* vqj4r eal ammeter, a switch and three resistors are connected aji(*aq4 my vr*s shown. 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?


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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 batter0;nequ 8hq) ncy, an ideal ammeter, a switch and three resistors are connected as shown. With thn hnc8)q e;qu0e 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 ressug5) 6bsxyeh nun ),-istors are connected as sh),nnus-u syb) exg65hown. 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 r ./8 (uinif sc6wwldp9ight, what is the equivalent resistance? Assume that all wires are ideal, the bap(nfwu.cdsi68 w /i9lttery 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 o)3:h as/px)n zj8 hovxf the circuit shown to the right with resxp vo8s /xah)nhj3): zistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resisrq3 je-7t im.ktors connected in a combination series and parallel circtm e kir7jq-3.uit 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 co b83qs q)h4o99 cptwpc9lj ,cqnnected in a combination series and parallel circuit to a voltage sh8to,cjq 9p4 )plwqcb cq99s3ource.
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. Which m )p -zezfi9p )a9foyac-fux;ozr+c, r-z76rbulb will be the czac er7z ;fz9yi)z6p+ ro-xa -f f-,mpo)r u9brightest?


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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 amml(9ktiu3 jo4h eter, a switch and three resistors are connected as shown. Wilt k93u o4i(jhth 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 swiun 6ec6:g-gfz 7lc).u4xhl,kp nlq:c tch and three resistors are connected as shown. With the switch open as shown in the diagra7.u,qhnlg4ec66: )zgkcn- :l pulc xfm 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 con*z. iz 9hs jxypgh6g3l63k9 lanected as shown. With the switch open 6ph xy. ha93 ljgk*z3lsig 9z6as 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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  • 姓名:游客(未登录)
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    总分:50分 及格:30分 时间:不限时
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