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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 in i syr-9d e*3orthe metal resistor connecte dror9s-ie*y3 d 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 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 xb6 cif of*04gd;0x xlparallel, the_________each resistor is the samof*ilb0cx0 64x xgd;fe.

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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 lightbc(x79cipb vm2 ulb causes the filament to become white hot, while the larger wires connected to the lightbx9v2(mi cp 7bculb 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 with LEDs. LED is y*zv5 t4o00isv n55 vf,ernup56wy gfthe acronym for which 5 *ve,o0 0u45wtyfgzs5 irvfv5pn6 ynone 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 graphi xqgcer3)t k o3,rhb):te resistor 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 rattkxb,o3hq) crg :3e)r io 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-6:aeywzvl z*k h,yz4 made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II yz z:k 6h- zvya,*4lewhas 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 materialm 7i )p0d+aeaa but has twice the diameter and half the length of wire X. If wir+0 eiad)pam7ae 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 piece of materia eehz. 7g-2nsdl is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because odn2.ezehs- 7g f 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 bueqj k4 kg6*gvs1 ,5j34oeoktoi9 -2 f2qbxjar lb. He decides to modify the filami96ogov-2f 1j3g,5skberk j *t2jo x4q 4eqkaent. How 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 re vjvl fyzwhi(7)wje :3;yz(9a: tss2rsistors are made of the same material. The length and radius of each resistor isfrv:29 aitl;y:7)vywhsz3(jjzew (s :
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+:epupuzmtp : 03i7m e battery in the following way: “Two resistors are connected 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 ruiupm:7+pe t:p 3z0e mesistor.” 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 accomk+ 5r,c.)fa4uc:1 i8oiz gjjaxa8ls g panying 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 most rai gi uaclcj1 5+z,)o kagx8s4.f:j8 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 7g,-h tocpy0p1, 2, and 3 - reph gc7t-o,0y ppresented 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 cur*(,w1n pvz hntrent in all three resistors is equal, which of the followinvzt,*hnw(p1 n g 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 composedf-j9 f 0kk7p owuxm64h of 5 identical light bulbs and 2 flashlight ce7pm f69k4xwh jo-fku 0lls. 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 followific gdagvx/u 7)d+1b jm/u 35wng statements is NOT true concerning the simple circuit shown where resistors R1, R2 and Rdgjm7ci x d)+/5uba3 /gwfuv13 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 srams4: 5fqo 8feries to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. I:8af 5s omq4rff 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 id(4by)nrly,e dy4 qz3nentified resistor in 5 seconds once the circuit was closed? y43r,yq )(4 el nzdynb


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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 simple l1oisvz ph; q/jd6i(7circuit have the same resistance, which would dissii(pz l6is7/vho1;dq j pate 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 accompa6c4rb h1-dv mtnying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power suptc-1 vhrm6 4bdply 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 tob2ioi,8l)r x 0shcci+ 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. What is thox b 8il2)cis,h 0c+ire 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 an dn. 36)eo+ o(;tvt/btrdi +cfcyq: t l1pr*twdR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is +6c+qd*ofr:)ti1./bnrcet3; d( tytt op vwlthe 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 ra vg,4pgy1-y))j tpvakted 1200 watts and 120 volts. What is the maximum value of the current under these conditions?yav)-p1 pyj,) ktgv4g

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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 operat;5xebr;p8ua ,xh fozxm ;r+7fe at 120 vofo;;r+ h b7ae8x,m fzrp uxx5;lts?

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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 dissip79,;,l*s mq3lh) w ezcdrnuqnating 36 watts ofnlq*; eqznlm 7dch39 ws,)u,r 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 "120 volt, 600 watt.” xwk+ ua4b ;id(mc.9gd bnl vc x;a0k,.In normal use, the currecwxu;,0 +d4ac dx;b.ibmn9 val gk (k.nt 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 pa pe- :a8*hrv2dlps )lroduced by a circuit containing only th rvpp8*la) s :h-d2elaree 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 t8 /vtmi- u9m, br lxuk5/k*kazhe following equivalent resistances CANNOT be prodk b8ikm -/l5z xat*9kur,vm/uuced 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 resistorsd/xvh1 hn;58 cfq *fes of different values can be connected together in different configurations. If all three resistors are used in a circu1 v fx*fh5eqc; /snd8hit, 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 connectc)ra4f zk((+1nj m axg+ h-cgaed 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 us )camz r+(c+hxgn(ag4a k 1-jfing 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, havinrog f3 n3.xfosj78ai-ftwv3 9aq +q,p g resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances ip3r73 jqf f,8 na3atsvqi.go-x9 ow+fs 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 designed such that it has a resi 7df 7zzp 0y;hy25h*k pk*ttl6hr6wgkstance of 12Ω when operating at 120 volts. What is thyk y6d 7z2rlt0* thw5;*fpk7hkz6hg pe 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 thro*u3ccida: xxfh )2pp 5ugh a 4 ohm resistor that is dissipating 36 wau5* ah):c2d ix pcfxp3tts 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 w)lnr*wtk*pd 3ia m9 ra+t- (gamperes of current when connected to 120 volts. I-(m +ln** )gttwwpa3 rrd9kia f 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 100W lightbulb lit continut/)hey4wt 8zgously for 1 year z)w4/g et8htyat 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 -rbr n3rw5yk8 v (,cgs4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Whrn (w bk5s -crgyvr,38ich 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 f /.qrpzxo/ pb)amily 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 ampere fuse, what is the maximum numbe r/qbpopx .)z/r 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 conn fu :i.uqv)8e0. hdkdpected to four resistors to form a simple circuit as sho 8)dku.: heuvd0p. qfiwn 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 con5hoaw: khg (poo-y973ywh/s rnected to four resistors to form a simple circuit as sh/swr-h(a9w:7o yy ko3hg o5 phown 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 thrbx+nz:ak k) (see resistors are connected as shown. With t kzn(kbsa+x :)he 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 conelv-v- yu(ok m69j)7rh3ok hve,i1r4es nrs 7nected as shown. With the switch open as sr7l3kmsj e (kiev)o- r4v ehn7o h1vu ,sy6-r9hown 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 ammete4mu,8ldcbx et) u;4 x rv7v)atr, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reavlm8cd x bex ;trv),4t)74uauds 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 sho4hb*- v9ps yrxwn to the right, what is the equivalent resistance? Assume that all wires are idealx- rv*y psh4b9, 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 right i; bb 15z;ezk 5/4rl yeiwwx:c with resistanceswrc/xbk51 :ebelii4z y;;w z5 $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 * tpf,n0caux t;;f(mp6n5gid shows five identical resistors connected in a combination series (; f0*nncu5,dg6tpaf pm x;tiand parallel 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 resistwn yis+6wv; y 7h+.zfhors connected in a combination series and parallel circuyvh;h n+zi s.+ 67yfwwit 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 bu- e0huqq wt6ecbueh3v9i ,3 -slbs are identical. Which bulb will be the brigeec3h -uvi6e tqs39qb, hu-w0 htest?


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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 ideb1*e anc e0h8eal ammeter, a switch and three resistors are connected as shown. With the switch open as shown inac8ee 0 enh*1b 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 switch and three resistors are ,vigxtka:;g(v t )mu5 connected as shown. With the switch open as shown in the diagram theg gktm)v ixtu,5 :;(va 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 resistors arecbx v01ui 3gjm.pkci4;(h1f o connected as shown. With the switch oiijhg1p(v.o fx34uc10ckm b;pen 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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