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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 que5 u4hf6nv1 electric 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 resistor and the die5fn1hqu 6uv 4rection 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 rebzli l29(0 kzdlc lft3kh.) q)5yx-glr bu-q6 sisld0kbq z)qilz9-.f(y56ul)l-g c2 h lbxk3 trtor is the 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 wirel64 vgm-ydw ib5ce4 6f of a lightbulb causes the filament to become wh6 bw y-i5d glvf6cme44ite hot, while the larger 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 lighmf4(tm q-k ouv94q jwk :,t4umts are being replaced with LEDs. LED is the acronym for which u :4m,v (9kqtj- umm4q4tfokwone of 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 length L and cross-sectional onrtwyz;e 0ne+ b.i/8area 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 ne e; e8rbn.+ywoin/tz0w 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 ma6 ud(bhq x-p vwsb:.q:terial. Wire II has twice the diameter and twice the length of I. If I hp-(dv bsh6: qwu.qb x:as 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 diameter 0/ ksoj4a:nytand half the length of wire X. If wire X has a resistjk0sot/ya n:4ance 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 ha h9stoq8b1xk 8x:+3m3mz sax as length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. W1sb8oq ta9z hx3mx x:3kms+a8hat 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 cq)tmko167 qelight bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulbqecotk m) 7q16 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 sc1y j6,vfv-f -y xu5agkm+g0 lame material. The length and radius of each resi1v xf- u ,g-+0ky5fcygv ma6ljstor 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 resistance R, are connected to a battery iwv j+,xcf 423 bl;islv2fmxl 6n the following way: “Two resistors are connected in series. This combinatioslvj bxv6i4cfm x2w; 2+fl l3,n 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 accompany 6stku5vv9 2mq tp-gczfp0w+0ing 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 mosg s0pp92t m6c+f0-v z kvq5utwt 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 kpf-ah umsot 4(1z; ;/uaq,seto the right. The three bulbs 1, 2, and 3 - represented as resistors in thk,zap/(4;qssa oue1 ht muf;-e 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 theuvx60m5lfk(v(,:f f .ru khte right. If the current in all three resistors is equal, which of the fr v ff0(,6mlf eu ku.5v:kx(thollowing 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 re8as*dqfn, 5p hpresents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight* a,dq 8sfn5ph 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 t 96py2vah 4lvgrue concerning the simple circuit shown where resistors R1, R2 and R3 are have equal res6 yl 4gp9v2havistances?


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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 ak6axbuuji4ap 9 +9s 2are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are c9 usjua4kab6 2 px+ia9onnected 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 identified resistor e0rvryl nl l25f/w)c8 in 5 seconds once the circuit was closeyr)/ lnr 0f8l 52vwlced?


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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 + h*ehhcsbh7(9tb n1p3i j pa) resistors in the following simple circuit have the same re ht 3ih1bp)nch( aj7+b*speh 9sistance, 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 cm)d3 qke l/+gmircuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supplqd l3+kmm/e )gy 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 series to a 0md,l ) z8su zetiu(h5battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance 8tz(m ih)s5,d u0zlueof 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 are connejslqo22 fvhig 593t *pcted in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 diso9i2s jgpt3*2fl5 hqvsipates 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 120ql13iuti/+r+s0zu 27y 8gj m: fitqwt volts. What is the maximum value of the current under these conditit+/mi g2u 7j qi38ry0zwqt lifu1:ts+ ons?

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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 resistal*--(l g(;z hhl x5dm9hteka unce of a 60 watt lightbulb designed to operate at 120 voltu- (at;mlhl-9h*gehz(x5k l ds?

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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 flosc)j4n6 l(x ypws through a 4 ohm resistor that is dissipating 36 watt)(xy sl cpn6j4s 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 pr wdaq4 1jsz0)num ;r(yess clothes is marked "120 volt, 600 watt.” In normal uyz); 0qasrdwjm1(4nu se, 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 produced bye)k ; 5,r9;do5+jmmaox yi nyo a circuit containing only three identical 6Ω resistora+ooje),9yi on ;mrmkdy5 x5;s?

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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 equivalenwi2sn :djsgq:t/(npa c+s 6c,t resistances CANNOT be produced using all threetjs6gc/ s(,i:+s2cw p qdnan: 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 can b51purb;eqi /3nhc( cpe connected together in different configuiub h r5pncec;(13p /qrations. If all 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/pgf h6wg(ikwd 804z d resistor is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same bd0(g pwkizf84dh / gw6attery? 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, ha/ayc r oxxuy*50i.z2f ving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is correcrya5fixzouc *x2 .0y/ t?

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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 whek /:k/gwf r26 lfgkgv,n operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of wat fwgkv6/ flk :g2rkg,/er 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 th z-ac: 9g eyla4a0ht0mat is dissipating 36 watt4lt h0eyz:ac-mag 9 a0s 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 wxbga30 dlis61 b,)irc hen connected to 120 volts. If th b isli)dacx g3b16,r0e 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 lightbulb oh23im,(rm3uz6 to ullit continuously for 1 lr3t(3u ,6zmohumo 2iyear 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 through a 0oihsf6:3 p/ 7 qissc yt;):pqd0hri vlightbulb results in a power of 24q/pi0 hhcof;q6sdyt:si s7:r) 3 ip0 v.0 W associated with 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 family of six owns a computer rated at 500 watts i4df txw*lj 1n2n a 120 V circuit. If all computers are plugged into a si42tj xnfwl* 1dngle 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 ree m p0sa +pknqw4(3;pisistors to form a simple circuit as shk4m(w;e+s0qipn a p3 pown 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 connecn;pl,*hif/ *j6auoy d0n 4:catzaqw -ted to four resistors to form a simple circuit as shown f:;jz*hlwya0d nco-,a46 *aqipn tu/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 ammeter, a switch and three resistor4d5,d wmxo ,dzs are connected as shown. With the switch open as shown in th m,xz4 ddow5,de 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 amme57s0o wtzwui .ter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rea0uwoz i75.swt ds 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 nw+qjo: s0h, :iaxc xqinp3y5i) l40 zikl(k:switch and three resistors are connected as shown. With the switch open as shown in the disi3o k,xl0i+ qiaizy n qw:l):nk50 h:(px4cj agram 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 resistance.ph*n o1 :khsf? Assume that all wires are ideal, the battery has no internhosh*n f1: p.kal 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 the righ1 llo.;xyzi7j t with resistances;7.jyiol 1lzx $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resish/mb) ucaf2p0 qf9g*/ aqaoq 2tors connected in a combination series and parallel circ/f/ gab2a hp209*mc aq)o fqquuit 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 bel92n)xwhm q:gfpz+j a2f60 u noow shows five identical resistors connected in a combinationon2fw a06fqu9+ h)xp:m2 gj zn series 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 bulbsa+jzy8h4dp ap97 9tih are identical. Which bulb will be the brightest?9 +7a yipdhjht9p az84


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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,0+l +m9et: q)t.t mgbklorf 0d a switch and three resistors are connected as shown. With the switch open as shown in thl)rb.me0kfmt 0+:o 9td q +tlge 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 th - yv7qxq0lg m3idgzhl:o;cv:+6 a9 klree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ama+oh7ql6 clm -0ig;39ylqz k:: vgvxd peres.
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 rdmhv ; v9n+kqgk j)/:tesistors are connected as shown. With the switch open as showntj )9vh;+vn qm/:kdgk 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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