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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 metal resisto 8wrniq0qwx:21af5 g zr connected to the battery. Which one of the following choices best describes the direction of electron flow through the resist:ga0rzwx 18 qnwf25qior 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 p cote . 6kwad4.ov3wf-arallel, the_________each resistor is6.4tfv-.3odwowce k a 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 thro nan rb633uml80axdc.ugh the thin filament wire of a lightbulb causes the filament to become whlnb38cdrx u03 a 6.namite 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 lights are being replacge4 bdk7czf 1th1))f se2(fnjed with LEDs. LED is the acronym for which one of thck)jfes4 nfg hbz2)f 1(t 17ede 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 cros: t,0 br5x7n ndr.dtfss-sectional area A. It i xr t50s,tdbrnn .f7d:s 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 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 sa8py/ - cx,tl-gvfgx.mdr)f6 jme material. Wire II has twice the diameter and twice the length of I. If I has resistl-drxjytvf f, g-gc./6)xp 8mance 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 0djqr tu dhg854:cx):a n; - yxac6xnehas twice the diameter and half thenu4 nxc8a:x: e-drg6qdh y t)a0 ;jc5x length of 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 resistor has length L and radius r. This pwv,-os2ic(*pjjr xu(cme 8e7:f xea 8iece 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 prcx87wj 2c((8* e vjp,iueero- ma xfs:ocess?

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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 mak srqbfh30x3q/e a brighter light bulb. He decides to modify the filament. How should the fil/fq 3r0xbs3qh ament 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 made of the same materiiwh6v fmk 0xjim*,3n. al. The length and radius ofmhx* inkf.6i0w 3, vjm 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 resistance Rd9;cc eoviyz,ux.n5; , 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 th i;uon,ze. c vx95d;cyird 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 c 6lp xo/kv8s2mircuit diagram has internal resistance 10.0 kW and the ammeter has internal resi2svm /o68xk plstance 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 show apm7lcfax-5z f8sl+7a hf75bn to the right. The three bulbs 1, 2, andcazax7+hml 7f 7l 5ba-p5sff 8 3 - represented 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 c886rnpb .3)dyj8upichjpy1 (za e 2e)l pd5ceurrent in all three resistors is e5e.u (1idyc6 ylhe8b3j)p8pc j8p)2 eap nzrdqual, 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 at r+jhz (tm))rme5m: 0e 1frk pihight represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whi0r1m) (hktm: z i+rp)efm5 hejch 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 fcmnm c h(;)m8zollowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have eq (zn;mc8mhm )cual 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 connected in series to a be, o9k.-x;njb j57w qqwc4eyu .k avs*attery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in paralc*njxqy .k w7sbqae v,49ke.j;5-u w olel 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 coulombrpyb: 8p86 dkks will pass through the identified resistor in 5 seco86db kpy8pr:knds once 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 simp bq1j6v5hi.xp le circuit have the same resistance, which would dissipate tpi xbqvj .56h1he 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 q 12xf3hpsrp *circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What i 1xp2fp*qh r3ss 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 connectedv8hky-u )o l4g3ajjue 4pws83 in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6y3a joj g)ks4uv 8h483eul -wp.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 resis(:tunklgxj2 ;s 1fvmr( . emf-tors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 =1ev( (x t.lm m :srufjng;2kf- 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 ratedcuo;7 kf3 at)qkppj6x;t c5p9 1200 watts and 120 volts. What is the maximum value of the current under these conditionsf x5tkkc) p ppc o3u6;7aq9j;t?

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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 wa c2:aa;+qv ljfax wl34tt lightbulb designed to operate at 120 vol:;2v 4lw3f aaj q+lacxts?

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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 /:p9wp uy9wn/2fu1+ ww bb,gns+dv q k4 ohm resistor that is dissipating 36 watts of powf/9 nyp+p b/q 29n+w :wd swk1,gbuvwuer?

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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 is marked "120 volt, 600 wk0 x9kwv t8lxd, os ,:1kjhnyh+u25 jyatt.” In normal uowkls1 ht,y,02yhknjkxu5 8 9d j:x+vse, 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 ubrp8(n : 5zijj9nxio7if. /n could NOT be produced by a circuit contaj 9o nzxj.nub8p57fi r(i/in:ining only 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 followin o/c4h,v6spjkkh uv sq: /6/eeg equivalent rech:4/ ,vkqssue/ve66/pj kh osistances CANNOT 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 va7roubkv 3nec6 /4k+t slues can be connected together in different configuration7+n/kkbet v 6os 34ucrs. 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, 1uj 1,* q s:w.swggi.mac5 kkaa total power P is dissipa . 1w .:,m5iu gsjawkcg1kasq*ted 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 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 R eeq pxae75i drb07:ke1*yu6s1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resist1sb 5d06xyaeiuere* p 7e7:qkances 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 ded44yukuz*0g y2weog0ep2xx2 signed such that it has a resistance of 12Ω when operating at 120 volts. Whkwy eo24gxd24uu 2yx00p g *zeat 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 currentqlm7k8l y (ea5y kq*r; flows through a 4 ohm resistor that is dissipating 36 watts of rl8la(ye5* q mkkqy;7power?

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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 ngbw:x8 vt. 6;pux*8o gwh9lhtax 62oconnected to 120 volts. If the price of electtnt8h6 op:xx8g.uvlx ww9o b;*h6 g2 aricity 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 cospg.i ro-;3csa t to keep a 100W lightbulb lit continuously for 1 year at a rate aoi gr.p;c3s-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 curren* py2nhzn1dhx;lg7lmx;)l f+t of 4.00 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 thephnl1l ;mnd hxz7+x2)l;*fyg 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 computr3yde.8-1sl(gu -acqmpp)n d er rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, wh(es r1-)luy3-d a8 gpqdpmnc.at 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 resistorsch 8q1uc8;/ w,l f8zao vpczu- to form a simple circuit as shown to the right.hz8oa;p / qv-w18u8cfc u,lzc
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 jcnhacvej5 n07t3 7a5 to four resistors to form a simple circuit as shown to the rig3 aan5v7cj05 he7tncjht.
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 ajt6951gzt nk eh e, auw5-j3rideal ammeter, a switch and three resistors are connectetj 63e kaztr h59ewagju5n-1,d as 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 battery, an ideal ammeter, a switch and three resistors are xlo-e+gm 2bk*h,a dgxi ,a1u4vfcz7 3connected as shown. With the switf ga3ce 7ivzk,ga,4xb+lm u2-*x1h odch 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 id 3o uz;i(ogk7peal ammeter, a switch and three resistors are connected as shown. With the switch opkp( zu3og ;oi7en 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 resista yl-( n ;3f* uvzej4yjx(axs)bnce? Assume thasyuj(evz;ly j a3(f n*x-) 4bxt all wires are ideal, the battery 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 of the circuit shown to thewa lwsw+t .plp*o5xk , .w4d2xr5na- n b3cw:q right with resistax-,:ws.l 3w 5 kplw+tc2rq.ao5d *4xbnnwp aw nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combrq,2:ymq+buje3f yc5 ination series and parallel circuit to a voltage sourfe+bumc,y5jq 23yq r :ce.
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 m*pt4j6q dw z5five identical resistors connected in a combinationw tj*pz 4md5q6 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 circulot8yt dqpedv b)+456 it diagram, all of the bulbs are identical. Which bulb will be 8 dd evpt4qtoyb)5 +l6the 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 ideal ammet9e6dmts; 2l2jqdlea )z e joikn9*w ,,er, a switch and three resistors are connected as shown. With the switch open ade)i9zj nd;,ewaol,tm ks*q26j9 e2 ls 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 idemjc ,.jo:g,ju /f kxx5al ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.mjgx:,/xuoj, jf k5c.
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 cbpkvskt i67jcdo/82l l + ,h*qudm0p/onnected as shown. With the switch open as shown in the diagram the ammeter readsk d 68l*p7hjbou stkl,vm+ q0ci d2//p 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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