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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 exixf 0 dwwvy, tvsz5 oorn(c jtt(hp5.84 d/d,,xsts in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through,,,(/fopwzvh dt .tn0yd c 5x( 5sj8o txrw4dv 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 inm pmy4-gt ltos)10 k8vpy3vx1 parallel, the_________each resistor is the samexyoyt 1pv0vmkp14s 8)3g-mt l.

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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 lightbulb causes the filam:- nuvc,qg u3pent to become white hot, whilg,cqvnp 3u: u-e 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 hopb,z*( pvw p8husehold lights are being replaced with LEDs. LED is the acronym for which one of the followinb8(pp vh,wp z*g 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 resistore qs z(:5o jeu2-kmj(r has length 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 new resistivity to the old resistivity((:o-se 52rez kqjj mu 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 zo (qgc/sa/r: made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resistaos /q( :cr/azgnce

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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 o 2ykhq ;znxw8gh:9,ocy. rzi+ i4r/sand half the length of wire X. If wire x hy +iro :rwi4n .82oskq/9ygzzc;,hX 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 hdwg6m /c/h vj*as length L and radius 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 material because of this pro6/d hw*/gcvm jcess?

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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 y72g6p0q d/nffij*aj to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the ligh60nd *f7q/j igjp2faytbulb 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 same material. The lengthckrvb 4wa:xeod(:6.t and radius 4rcxe (6dbt.:wkv:aoof 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, ecov5) a gls(:dnf2 gg*ach of resistance R, are connected to a battery in the following way: “Two resistors are cc)vd :o2 g5f gagl*(snonnected 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 circhhq/:nj(; fxq2.ozucwt.nb .uit diagram has internal resistance 10.0 kW ahn(fqw ..cz;u:jb .thq2no/x nd the ammeter has internal resistance 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 three bulbs 1,+maktrwy:d n6/*zi; q 2, and 3 - represedn6+yrm*kt aqwz;/i :nted 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 electrica9cfkimlf ;y0mc0 :-ygl circuit at the right. If the current in all three resistors is equal, which of the gly m0fm0y c9:-;c ikffollowing 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 represents a simple electric circuit composed of 5en4* 0vx: bz.zeodhzju5y1f; identical light bulbs and 2 fl1vz bz5f xyez.:u0 j ndoe*h;4ashlight 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 the b 4(-ff,zcahw simple circuit shown where resistors R1, R2 and R3 are have equal rw z( abff4hc,-esistances?


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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 a battery. Buyk+ ,tabzc 6 i(dian3-lb 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 same battery, which one of the following choices best representstydza kinbi(6ac3+ ,- 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 in (p7n+*i/ vtq, ohwa 3k3sjx xx 5 seconds once the circuit was clo/hip *+3, kwa 37xt(qxjonvsxsed?


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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 thg(ii*)fqsrfxtk, p,6m -imk.r.:k txe following simple circuit have the same resistance, which would dissipate the greatest r f.xigkk*sp,x(im ,km6 )r-q if:t t.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 the 6.0 Ω rf6 i3gyc,o*ov esist6*i,fc ov oy3gor is 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, and R3 are connected in series tp n;t;vsfm +6uo a battery. Suppose R1 c utf;;psvn+6marries 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 are connected in paralss:*tku d/./nn eh2xb*bx/ vv lel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in R3 ve.*n *hb/du/nk:b2s/xxv ts?

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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 wattccp91:i ;*;o xxec(rvb g z(has and 120 volts. What is the maximum value of the current brec*(; cac9o :h(g;i v1pz xxunder these 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 6 4t;)arsfxxls0z4l sat 120 volt;6x0 lzsss44 fr)x alts?

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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 thatavr2-;3(skyqi 4vo-wyk/wv e dxz(mb83d o/t is dissipating 36 watts of power(d3ym- a// veikzwo8 4dv;-y(3 ktsr w2bv qxo?

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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 vpo 6jdrh+28yet3 l s-is marked "120 volt, 600 watt.” In normal use, the current in it 8+dy2 3sr6-hepjl vtois

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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 follo4qgo lmc- x/bz0nhd r:5n02oxwing resistances could NOT be produced by a circuit containing -b0xcn m /ohdn52: zl o4qgrx0only three identical 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 follolw +a7 tvnx7xinn29 o,wing equivalent resistances CANNOT be produced using aotvxnwi 27n 97,x +lnall 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 can be connected togethfv o6w j327qfker in different cok7f3wojq2f6 vnfigurations. 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 resistor is connected to a battery, a tot,evf; 6g /sqfoal 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 battery? Assume the internal resista ;,f6e gv/fsqonce 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, havin3 q. ri- wcj;b:piogw3g resistance R1 and R2, are connected in parallel, the equivalent resistanc;or3 :pcwiq i3g.- bjwe 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 design*hc z:teisl6y5k i82(h br k70 sxhpt-ed such that it has a resistance of 12Ω when operating at 120 volts. Whax 0ry 75cip*2lb:h-h6hsz i8(tk teskt is 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 current flows thr:*n2se(kx wpwk uc *p/ough a 4 ohm resistor that is dissipating 36 watts ofp: /wnp*2su(x*ek cwk 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 whwv; h9rmq awx8o90 ow*en connected to 120 volts. If the price of electricity is w q;oxr99 0vhoa 8wwm*$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 w atu*8ioi jpt3t5:5blightbulb lit continuously for 1 year at a rate of it5i:tbj*3p5u t wao8$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 througmbu3v-dl( plv9+h)e l n, 9eveh a lightbulb results in a power of 24.0 W associated with the bulb. Which one of th hu9ll mdv evl-b)e+v,93e n(pe 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 fam6 p)0qzcx2 ;+bz iv v;mew3pgs7b6vjge 8tg 4hily of six 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 6cvztie0bevw8g b3+m6hg z)p q pg; v;74x2 jsampere 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 cem 4(iozwg 93:bthael8lul /1onnected to four resistors to form a simple circuit as shown to the rig 3l1g8 oh(w4l b9umilz :eea/tht.
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 resistor ,0;l2cgfm8 xv9 +.qazi fotuas to form a simple circuit as shown to thaim98t+;c2fv uq. zo a,fg0lxe 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 idm5:ldj jb b66seal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readmjsj6: dbl56bs 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 ammeter, a switcpb-y bwaes0:*ajc 8 a.h and three resistors are connected as shown. With the switch open as shown in the 0sa 8ja:p*cb yb.-e wadiagram 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 amme5w ce2w;yeytfq62;bpu (jag 7ter, a switch and three resistors are connew ;yy b6ewtqp572ajc ;f(eg2 ucted 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 i ysz)x vat;ifg)u f hxs* f2l,./+yzn4s the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three ) +zun,;ha/4y .vz sy*xfft )x2lfisgresistors 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 resistq 3pmz 0 iffzk/.m4; 88qaudktance of the circuit shown to the right with resis0k4 8di3pk8ztm ffamz.qqu; /tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belouqas*4u2x xz7g6xk7d w shows five identical resistors connected in a combination series and parallel circuit to a voltage sousxka7*dgu6qxx24 z u7rce.
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 rem,l9pr , 7eq4og ivi2dsistors connected in a combination series and parallel circuit to a volt2ri7v g, q4eo lpmd9,iage 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 b6x1gv sq*w-w wulbs are identical. Which bulb will be qw x-sw61 w*vgthe 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 ide6a qi04 0djh*p3p aei3-rd blual ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagrar6pil0*u 4d33i j-qhabe d0p am 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 resistors arfz )d47b h x7r7q3xozfe connected as shown. With thh7 37f 7zqxxrz)o db4fe 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 thrdnv ebv0uy 6 82tn))ayee resistors are connected as shown. With the switch ope)yv )0te8n6yvdunba 2n 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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    总分:50分 及格:30分 时间:不限时
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