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习题练习:.Resistor.

 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 if um2euwfhk(,y4f 7v5n the metal resistor connected to the battkue w54fyu2fv hfm(,7ery. Which one of the following choices best describes the 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 para 9nuw1ejk v7f,llel, the_________each resistorvk n1u 97j,wef 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 wire of a lightbulb cau,ogh32qodt m3of/pse6h-1 pg u0 ia9dses the filament to become wsioodh o q/f h3u6p1gg-adm ,32 0pet9hite 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 ho fk68 (+i 8 -enohgzsu0j9szm 9ne:bxkusehold lights are being replaced with LEDs. LED is the acronym for which one of the following choices?ms( 9fskgz -b+eko8:9n0h n6xi jue8z

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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 l1kfe1m h8ta6x ug2/mpength 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 thu a1hemk28 gx/1mpft 6e 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 twice the d 01ksd/lfofl9bs8e 0jiameter and twice the length of I. If I ha8sf/0ofb 9lked js01ls 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 twic8pfth4ut /,,x u/b*rae 3 mvyfe the diameter and half the length of wire X. If wire X has a resistance y/4femxf/, bahv8 pr*3t,u tu 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. Ths6c 4t5yx6jgq is piece of material is then drawn so that it gt6 6s 45jyqcxis a cylinder with new length 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 Ediso1s(ysvtpkz5uo10 s ( tn wants 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 tz (s s 10tt5pu1(koysvhe 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 madex ikavq) cr - hdgjce76ykm7k96c;3n9 of the same material. The length and radius of ehjdvc 3k7 6 aimr6y)x9 cec k9n-k7qg;ach 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, uze6(+zn r1nm*pj qf) each of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is co reu+mj z *()6q1npznfnnected 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 circuit diagram has iby0zz q-+ks:y7fs9fd nternal resistance 10 9-d q ky7szzb:+sf0fy.0 kW and 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 cirlamupn)u 1 jy68 - imkhi,1u4wcuit shown to the right. The three bulbs 1, 2, and 3 - represente8pa lm)- uw4 i 1kjmny,u1ih6ud 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 allba+agwyhift77,3u bq :t 7u 0t three resistors is equal, which of the i7fw 7bb7q ugth:t + 0tauy3,afollowing 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 ci hvy+3m7dgh3zhj) ftzy,2dx4 n:m1c ircuit composed of 5 identical light bulbs and 2 flashlight cells. Whim3 dxf +2ig vhhyj43)tz:yn zdm 17c,hch 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 follihc-; mg9lvq- owing statements is NOT true concerning the simple circuit shown where resi ;hc9gmi -v-qlstors 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. Bulb X is b0 yaz6pcenegl: mdd)7w (f x0/ab2ij,righter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to the saey26 nx p( ia0 ):0jbemdg7adzl c,/fwme 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. zz6zf16 5 b kbg/*gttn3pvnb.yqz(u f+sb 2a identified resistor in 5 se5f321z6n.zab bnu bg tpf /g +vz zsy(*q.tk6bconds 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 the89qny o )3j4ay 7x6 cpiw*vens resistors in the following simple circuit have the same resistance, which would dissipate the g3cn yjx) ai8oe4vwns6y 97p*qreatest 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 7fqj)1. dp 8t,1quul vqtq w 5thn9a)y Ω resistor is 1.0 A. What is the po,vtqa fy9ph)q1wt8)5uqu 1t7lq ndj .wer 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 to aga9rw+1 z;cts battery. Suppose Rszw tg+ ;1cra91 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 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 connectedhoo o7 c3ho-.r 62azfr in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the crhr7oh3- 6o z.o aofc2urrent 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 oiuq ilk72x*+ q grz9v0uf,.frated 1200 watts and 120 volts. What is the maximum value of the cur79l u+0ivf if.zqqo 2 gu,x*krrent under 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 lightbul9yvmbhkqx 38 gdq 4h28()kimob designed to operate at 120 vok oym3 (9xm) qbdhhqvk2i88 g4lts?

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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 sr (qy wvr4xr.olx 372dissipating 36 warx2vw7r(. xq ry los34tts 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 press clothes is marked "12hm h8xxdit:8hpz- u6*iix qbx8+-)in0 volt, 600 watt.” In normal use, the currenz pnh 8xi ixhd6bhq x-8i8-+ mtx:*)uit 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 coq ikmw8n8b xtd2)f 4h,uld NOT be produced by a circuit containing only three identical 6Ω rqw id 2f) h,48bxnmkt8esistors?

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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 resdy, *) q7bdj5wrfg:w) b1he :u3fnbisistors. Which of the following equivalent r1 u *::wb,f) 7bw b)gnrfjyd hs5qdi3eesistances 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 values can be con1zdqhl.nb b/ 5nected together in different configurahqbn/1l.b zd5 tions. 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 totn ;,rxe3y uf2sal power P is dissipated in the circuit. How much total power is dirn uy,2x;fe 3sssipated 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 R1 and+n e ;o3pc*c1kwzx+1 wai3 7)m o- z(zfjajixx R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statementsxa; opc wzxei*f7jk1mazj -n +c)1xz( +3 iow3 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 dekkg- 78*jcllmj gre- wq/veus654 o+d-6pz h esigned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of j4jo lpmerev---7 uek/+ hlq6gzs*dkw c8g56 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 dissipating 36 wa(8cm/f p 2 n0nf 23ch3e7pmvk giv1ymbtts 8 niybp3k22pemfnmm 70ccv /f1h3v(g 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 when connected:zqqhd-38 vy wyeg,) t to 120 voltyqzwedvhy ,q3) -:t8g s. If the 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 106 ,xa79p0u y.mqpa/ 2p+ugpofq4 wme u0W lightbulb lit continuously for 1 year at a rate ,of. e7guaa /+yu2q pp4p xwmuq 60m9pof $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 resultsh)-k/0x whejcu6zy p rr-v) :i in a power of 24.0 W associated with the bulb. Which one of the following choices best represents ther )- h 6v/: jh0k-pwruexi)czy 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 oe0jo n1v- k4w xegj.gwvd,1hk (q.ui7f 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 ampere fuse, what is the maximum number of the computers can be operating at the samqgdviu4e. (e0g x kjo h1wk7 n1j-w.,vetime?

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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 h 4qu d(d:rzgv: 6qqk5to form a simple circuit as sgd4(qu6h:v zkd :rqq 5hown 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 re ql vg4b/h50oxtb8w*z sistors to form a simple circuit as shown to t 8lg 5hz x4tqbwob/v0*he 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 batterydajc:1rk,ffbh0 na,,, 4u ckh, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as a1c,k, buj4d fk, :fan0,chrh 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 swituq6ap nf0 2x5 /zlr,lp3mg b3ich and three resistors are connect upr,mln6a3p32zb/l 0 qgif5x ed 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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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 annt5v: 7lx 47k7fmuw tsd three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere: wmtnk7475t 7uvsxfls.
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? bw9y :m3;(vzdnlu ,d mpdzk3d*1jajb74 lmw 7 Assume that all wires a p n:l,3z7mbd; bdw9jlmj*dm awu( 3 1k47yvzdre 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 the i(u0. oqa;tzmright with resistancesq.o( z m0a;itu $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 r07vw7iatzsya z2pv tp82a 8+c esistors connected in a combination series and parallel circuit to a voltage sour8pcw2 avv 2+7za0 yp8sztt7aice.
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 show4ghlt8ei95c ebqf5, zs five identical resistors connected in a combination series and parallel circuit to a volg9e,85q tbi5lez4h fctage 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 circnl :nmjk l-gf 36;4f* z,zpqikuit diagram, all of the bulbs are identical. Which bulb will be th -6n;m4zlk:pf j qn,*lzfgi3 ke 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 ammeter, a switch and three reutrh3p0k1mjdss8 )i 9 sistors are connected as shown.3r1pmt8 0s)hdik jus9 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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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 swix.p (e4rsxtm ei,:5ht tch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.t:.h,er 5 exisxm p4t(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 s g*my lfp7 0ys-t71m l/jbc)whwitch and three resistors are connected m*-fhpb7j t/sc 10w7mg)ylyl 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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