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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 sqxh*3;xhc51g q kz7ucurrent exists in the metal resistor connected to the battery. Which one of the following choices best describes uc3 xzq1sgx75h k;h* qthe direction 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 parallel, the_________each resiq9k;f7nz fa hr y:/vh 99(djcqe,;fwpstor is the same.r yfz:fn/ p;9j,99h7wqak qfdev (h;c

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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 pp:ipgmdf,v m) , 4dp6lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulbg4 ,,m :vp)6pp dmpdfi 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 replaced with LEDs. Lp2 51w /a43oyrmagh2uf96 xmr kw1hztED is the acronym for which one of the follo r1oag5mhrp31mwyx w 6 f2/uhk9 2t4zawing 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 uwusm.y96* q7r-e -cnmp+jl.o az ,zk graphite resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it e-+.aj moyzwc ,nuqzrl 9 -ps*76um.k 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 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 twicec1 ogjn:k,.-v0j,zsit db+ej6h5b n c the diameter and twice the length of I. If I has resistance R, II has resistandbkv6 hgo z,5j sj:c+ctin- . ,n01jebce

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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 diameter akyh6t rf-n v1 yp89: boryg)e,nd half the length o p9y6b-eg1yy:vk,8nrroh f t) f wire 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 vv9 )n/ sl 2l(bqkzuuc)j46e uresistor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new / 4 sqvk(uuue cl))9j nzv2b6llength 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 ldwh:9;;zfy,6bi iend ight bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in ord ;hi;6nddify9,zew b: er 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 cylindriceu4c4vkp)-/s * cet onspv,bcl 694sial resistors are made of the same material. The length and radius of us*p4o4ps -kts4 i eccn6,be/l9cv ) veach 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, lph;ks2m1 u ;.hih1e heach of resistance 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 resistor.lpu; hk1h 1he; ih2sms 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 accompan+ 14+htl;rfh) n:f5zvyyt vyy ying 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 reading is most near)yry4l yv t1hz+ty5 f n;v+fh:ly:


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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 bullv wrme2cf (x8624rf-n7cvv +5um :s iu/hqlwbs 1, 2, and 3 - reprfnc w6re x vw/v(f4i22rs umv 5qlc-m8:7u+ lhesented as 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 the current in alekp4 uzugg u*q/ );8ph4 a1icyzt5m hb(77m bal three resistors is equal, which of the followinage( h*71uicpqbh zm m4uakp yt/bug8z75;4) g 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 repres4q8mlilh uxxyf 0h( c4h-7f;jents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bum4 x ;uchq 8h0jhy4if7l (xlf-lb (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 the simple cs4ylt5dj 02xg ircuit shown where resistors R1, R2 and j4dl2t 5 sgy0xR3 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 anzj dfee7j k 8xts;/zu/xzzu l6 ,j9:4kdY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X a76/ jl euxz ;f8,zkk4d xj/:ezztu9sjndY 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 id;f;c ag5i 7uvwh+b b3ventified resistor in 5 seconds once the circuit was closehi b uva;b+5vgw;c3f7 d?


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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 hkoe4i6r: nal.hdi) 8t9jm xo/ ave the same resista69hxm )aj4k/ . reto:ond8iilnce, 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 accompan: zufevi* k(x-w()zupxxa -g v kk-l3 q)8l*zeying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is 3kvfkeux *pg iva*)-lw zzl-u)q-k(e(z:x8x 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 connected in seriew1wx e :(7wokjs 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 vol7wkj( 1wxeo:w tage 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 arebncdva *8cx21 connected in parallel to a battery. Suppose R1 hasd2vcx *b 8ac1n 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 0v;jll1qxq ;dbha/ gym;r -bot 5sd1ra5n,l 1s rated 1200 watts and 120 volts. What is the maximum value of the current under t ;r 5l amvt,1 ;dqb1 1hsqnd l-rb0o;jxa/5lgyhese 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 operatefk6ol eju(83e at 120 leo6 j3( f8kuevolts?

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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 dissi59ps4kpx2eyg;n1 5dj 3 idama2p) wpopating 36 watts ng1; 2jdyokpa5sp9 2dx e)a3mwi5p4p 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 gzp 9nx i:zf5e. h8y7oto press clothes is marked "120 volt, 600 watt.” In nezph5x9fi y :oz87g. normal use, the current 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 prodb. n00jdt/i; )r;:yu so0mw ppdpyi:muced by a circuit containing only three identyry;ujp0 pmb:o0 d0m .t;/idnis) : pwical 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 the followingwshno5( v)*h 46gkhqp equivalent resistances CANNn)*h5kvophs ( qhgw64 OT 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 d+ h1z,c. bnepcan be connected together in different configurations. If all dz n1+ehp.b c,three resistors are used 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 conn9gqd6;mmm. q -1 byk2mfo,zj j /fqcq;ected to a battery, a total power P is dissipated in the circuit. How much total powerf12 69m;yd,g-m.kmj/fqbmcqqqj z o ; 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 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, h(bbzttng*igrz6*d2q 6h h255r1xv na aving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements abnbxhg*2 rzg1 at hn6(rq6d2i5*bvtz5out 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 designe+,cbz 8q,nrk kdl:c6qd such that it has a resistance of 12Ω when operating at 120 volts. What is td,kznl q:6+ q ccr,k8bhe 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 current flows through a 4 ohm resistor that is dio4wx3xgo9 l99ckcd sz3n/s )7+ pk ccmssipating 36 watts of power3k 9mcco 9/+ wclod34nx7c9sx zsg)p k?

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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 am8e:oepi8 n)3xk1yj moperes of current when connected to 120 volts. If thno 8mkoepx8)ji3 y:e1e 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 would it cost to keep a 100W lig-mlfji0 cd+h i n:;*wb(xtlp1htbulb lit continuously for 1 year at wm nifp*0-j( bxdl :t1lhci; +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.ui +r 2rkyw 6qx/ih(x*00 A through a lightbulb results in a power of 24.0 W associated wit(rhy6 u kr+i2/ x*qxiwh the bulb. Which one 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 fami,d(kkp tk -/deb :qf e9v4izd5ly of six owns a computer rated at 500 watts in a 120 V circuit. If al4 eq,zvped f(: tik5kdd/ k9b-l 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 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 re-4(j * asgogpn-ermq 4sistors to form a simple circuit a g4 r4poeqgsman-(-*j s shown 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 form a simple circung0scqs*pl : ie-;t3hit as 0segh-ctnqi;:ps 3l*shown 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 ideal fh0bi9ip ,u75wf/ds.btrz n 1ammeter, a switch and three resistors are connected as shown. With the switch open as 5nb7pwfs /dui.zf01hb ,rit9 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 ii e,6/se*c ra0p..gxy ;mdugl deal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads /x .s.6gegcl*i;um da ,eyp 0r2.0 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 resistorns*i;i843r+d nztfh:yb h,c ts are connected as shown. With the switch open as shown in the diagram the am;8yzdnn*i f+43ht ,cb rhtis:meter 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 resistance+qxn(71umwxb )y5 o ndtf d5f7? Assume that all wires are ideal, the battery has no i 5 qb7nxwdu+ d(mtxf)f71 yn5onternal 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 of the circuit shown to thesho1*x/ 2nca c right with resisaxc1n co2 h/*stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connec6a3heqvuw *8p ted in a combination series anduepa w *36hqv8 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 identicay6 :sz3.b( oumsn)c7-uji6xias4v -is gjec, l resistors connected in a combination serieg4n.u 6sii:m)u -c(ei o,v x- scsyjjbz36 as7s 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 the bulbs are identical;jq;p9* ef rkv. Which bulb will be the brightestrf;;j*qe9v k p?


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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 anu ca5 85jtvh 9hsact2lwv /)f4okq)v6 d three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.jav chu h/5 852 cv9kq)4ov sltt)a6wf
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, an,,pn,v :dn-trazxr2 switch and three resistors are conn,ndxzr n:,r t2apvn- ,ected 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 am wq6a4/bj uyox uzm3w 5c**oa.meter, a switch and three resistors are connected as4*m/w.b6 y*j 35azcouqwaoxu 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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