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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 electricm7pn+r,-w6qz6 r oalc 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 direction of the electric fieldnm- 6a,lo+wz r7rcqp6 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 iny yyh7x;ej4; hl53krg0 lyhqrtml ;,5 parallel, the_________each resistor is the sgy 7j hmhkql5lt53; ,;04; yleyxyrhrame.

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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 through6j*qrfm ch71w the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected cj6m *wfhqr71 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 replaced witho us c 8batab0cie 1z7;13xqy. LEDs. LED is the acronym for which one of the following choices?xo.ce;t1qyz a8ca7iubs01b 3

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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 lengti(pmm9wqf2gn uix.q p v767q9* saz(l t4j7 nqh L and cross-sectional area A. It is to be placed into a circuit, i7tijlpwfn pm77u9a n vq(.qs (*9zm6q2q4gx 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 same material. Wire dh9em hcd.27n II has twice the diameter and twice the length of Ihch9e.n27 dd m. 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 t;6r+-o6nnv +mhg kn l18tu vrlhe same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would h r+6nov-1 8n +vrlmhnu l6;tkgave 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 Lswv+ /bh -iid ek:5bk/ and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What k/svki 5-b+diwh: /b ehappens 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. He decides tn6lbrxgs8b pip3 39,jo modify the filament. Hob8p3rnb, jx3 gslp9 6iw should the filament 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 material. The leeh- /5ao ijrl.t3)ytjngth andtr-oah)ljj .3iey5 /t radius of 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 R, are connected to a rkar5jj) 6d6yz8k v5obattery in the following way: “Two resistors are connected in se8kdr5 )vk6 5o6zajyj rries. 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 accompa ybsddbi, )ibxa2 bv4j4i0q**nying 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 ij2ivb *0bdxd* b si)iaq,4b4y s 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 ris6z8 xlfb5nzb* w s9p6 ;v:mydght. The three bulbs 1, 2, and 3 - represented as re:l vd6b9zfsz;s *yx8wbmnp 65sistors 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 elec;ko,dq3, t*bq)8o xz x5 dovnitrical circuit at the right. If the current in all three resistors is equal, which of the following statxn; ,8o*ko)dx,ibqzvt qd 53o ements 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 5 ix7msc3 :fzq)o t/i uj2dentical light bulbs and 2 flashlight cells. Which bul z:oi/c3 u)s72jtqxfmb (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 statemvso/o7qs-:f4 lf(hpy ents is NOT true concerning the simple circuit shown where resistorsl(oq /7ys4-hfsf v:op 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 connected in series to a battery. Bulbaotcm;b8b.2bte:4 * cpp u(jb X is brighteua b e* 4:bb;ptpbt(cmcj82o.r 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 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 ide(l4v sxbz)+v0-t0gs der 4hw mkcftkn0 n+2j3ntified resistor in 5 seconcs0t +mv4n0w()beghtkj4v -20 3rd l fsznk+xds 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 s99: s.kruk0xblr5)mu stu yy0imple circuit have the same resisxm5 0us ku )l. ryskyb09:r9tutance, 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 circuit diagram, the ckqmh6b5zn h *cxtl*,7 urrent through the 6.0 Ω resistor is 1.0 A. What is the powerh,kzt * lb6nx7cqh*5 m 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 resistorsx qe*9: oiwa*ctc79- gtdy6qe R1, R2, 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. Wha7xog:6e9cea-* *tciq w9ytdq t 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 resisw hc z9l/stc+ .m2;dprtors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is th.s2wzc9;c dtpl+/m rhe 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 wattk.g-xsl slz)jb7. jk )s and 120 volts. What is the maximum value of the current undeg j.lj z)-b)sxl7.kskr 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 r(3 jc9ayk td5zesistance of a 60 watt lightbulb designed to operate at 120 voj5(zcakt y d93lts?

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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 tha p3xifis-h 1e-t is dissipating 36 watts of3 h- xsi1-efpi 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 usq flctrh,c2 cu-jw+ 3l90+a vdwp;i7.iold8ded to press clothes is marked "120 volt, 600 watt.” In normal use, the currentf+d;8c q3rcolll9w +-07pt id.h uva2,jidc w 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 followinh **k4fu6h2 ule gco5mg resistances could NOT be produced by a circuit containing only three iden mc45fhoug 26l*eu*hktical 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 foltq*6o7xqr8tx )m4m grvc vr 2+lowing equivalent resic4)xrrq6+o2t v *78 mmgqxrtv stances 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 valx12 zjd5;dqoj5h95 twq yz6tzues can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can 2jxz d55y9t1 ;tzqoqjz d65 hwbe 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 oy dh38hp1phzd( 7 pz: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 resistance of the battery is 1:hz h(7ppdyhd83z po 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 R1 and R2y,lroa.t yb 0+, are connected in parallel, the +lryb,0at.o yequivalent resistance 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 81rh7ex. nu nsdesigned such 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 from uxnn e 8h.sr17$15^{\circ}C$ 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+f-gf)skr2ef dissipating 36 watts 2ferfsfg+ -)k 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 drd0b9b 9 a-erit*xf0nwaws 13 amperes of current when connected to 120 volts. If the price of electtnaw9bf0- i*de0 9 rxbricity 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 wr*c- ew 2voz nnnvj64+ould it cost to keep a 100W lightbulb lit continuously for 1 2c6vvn4 n+wnezo*j r- year 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 lightbulb bn62euwb bt 11rfz; 8nkvd/o, results in a power of 24.0 W associated with the bulb. Which onb/ 1tu1nfn68 wb2b;evkz d ro,e 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 odi8w a40du bp5wns a computer rated at 500 watts in a 120 u pa5did04wb 8V circuit. If all 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 resistors to forml.py c;9, atls a simple circuit as shown to the ril 9s.c,t l;yapght.
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 ;jjec( a pgls dan6c f0,7h*g:hha7w) connected to four resistors to form a simple circuit as shown t;70e aa g7hdjg) fh:,lwacp6s(hjnc*o 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 resistors are conr* 2,gd.k-n nzi j.jsvnected as shown. With the switch open as sho.gj knjn-rzi*,.ds 2vwn 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 resistop, oy1yka e)huk2 1(afghn)j/kd f .i8rs are connected as shown. With the s 21f)p aa.i /,fe(ykohhudykn1jg)k 8witch 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,56 ky i(.qcf;wd.4 znap3kuexh saq 24 a switch and three resistors are connected as shown. With the switch open as sqkaq dcn 4f3z4a62pexh y(i; 5k..usw hown 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 circu/m8s amo t8br,it shown to the right, what is the equivalent resistance? Assume that all wires asm8ma,ort /8b re 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 show,j /u qvo8xux/e we6y5g0-pfen to the right with resi 58eju-uy/ w0xv,geq /eo6xpfstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 conneccbx* +2b; *tpb* ycyxxted in a combination series and paralx* yx xp+ *b2tyc*;bcblel 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 identical resistors connected in a c 7 ,pw4wne hyiev7-:mcombination series and pa7,-pneiem4wv:c 7wy h rallel 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 circuigyzxs/bmiw/ * a08r p;t diagram, all of the bulbs are identical. Which bulb will be the bright//y8 *mgbwxsz ;i 0praest?


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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 i7.u2lmv i mqx.gulin/;745 gjhct hx;deal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 .x; gix74u5.hl/i ;7u v jmqlnhmgtc2amperes.
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 andj eiy*v 3pf5q9 three resistors are connected as shown. With the switch open as shown in thj 3ef59qvp* yie 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 three resih y/bpmz b;ke*2xki6.je. d2 trng2 3fstors are connected as shown. With the switch open as shown in the diagram the j/i.k6nb bd f xp2*hr.2gzket3mey2; ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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