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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 curreze . q0tqul1ks)h;1mbnt exists in the metal resistor connected to the battery. Which one of the following choiszmqql u1 ) 0ekhbt;.1ces 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 are5r8jo h7hh 1tz)qrs/ a connected in parallel, the_________each resistor is the sam o 75qhza8rhj hrs1/)te.

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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 mz.d:ar;6xotb 5d16zikan k+: hy/j ha lightbulb causes the filament to become w m1+5hakta;o/6 zjzdhnkybrdx: :.i6hite 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 replaced with LEDs. LED is xv -eaa:o):fj1a/v sx the acronym for which one fxa:vavax /o):e1-sj 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 graphite resistor has length L and cross-sectional area A(d9ir crlb+ afxj*ok +/b dvf*bx 368y. It is to be placed into a circuit, but it first must be cut in half so that the new leng bi6fb 8fl*a+y9(/dxov3rb j xc* +krdth 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 madehd -cjs1( q;zt of the same material. Wire II has twice the diameter and twice the length of I. d ; hsc1-tjzq( 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 the same materiu. fz*1:4gq grkj,nrk0 qs. lial but has twice the diameter and half the length of wire X. If wire X has a resg1u, *qzjq.ki4 fls:rr n0g k.istance 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 sivvj,h*2c/gu6y+/tl8 fl :gxb 3ckmL and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happ,6gluy /g+vlimk:8bx23 cch*/s jv tfens 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 brighterxxmu+6l8 (sch: jbqgo8;p q 3x light bulb. He decides to modify the filament. How should the filament of a lightbulb be modifip;hlsxqx+moc6qxgu b3 j(88:ed 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 resistc5p: /e1k ymdtors are made of the same material. The length and radius of each pck5m/dty :e1 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 battery in ,i,aoajo o 0.h5)uoctthe 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 resistor.” What is the equivalent resistance of this arrangemeoaoi ,., t cajhuo50o)nt 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 . nm5 th;ugtlc0na0i -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 ma0lit nng.th0 5m;u c-ost 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 tih3n,)3 ,n nvrpjx)in t*b*f ohe right. The three bulbs 1, 2, anjbh*3nn, tfri3v,)o ixnpn *)d 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 current inx854sp izqh, tm5;jupyn xp2, all three resistors ;t2qppi54u 5p8hjs x,yz,xnm is equal, 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 right represents a simple electric circuit compa (lvs2gjeo-/ osed of 5 identical light bulbs and 2 flashlight cells. Whica2 vg/oj-e l(sh 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 followq nc d)ty.kr 72;:ktucing statements is NOT true concerning the simple circun)dku.tty7c rc :;k2qit shown where resistors 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 ser0odisx 737k utkose ):x x4 f,0heog1yies to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connectedg fuxd o3k1s7i)oe:0 e s0xto, ykx7h4 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 pass4b cykyhw khfrw6.0*/ through the identified resistor in 5 seconds once the circu/y y4k6h 0wb* krfchw.it 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 resistorigz/z.3mq + 1rde ugy:s in the following simple circuit have the same resistance, which would dissipate the greatest po1dgy+r/3ezum z.gq i:wer?


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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 re qui0;ug8 zwt:sistor is 1.0 A. Whu8;t iw0gz:uq at 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 to a c skn.fr5obx*(3ua,oqpc+1n d3 7rmlbattery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W kfbcc o5om+n.s73n 1p 3*rq da(xr u,lof 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 *p a54x a9fe7u n2klu5)a:bujr7k hy qandR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the)bfy nkrjuua ex557*a2k4h p 7la qu:9 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 watts and 120 (pc .t8s;j ye6 0pomx6vs:dqsvolts. What is the maximum value of the current und ss qpsj.opxvtd (e6c:0y86;mer 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 w6:x09pdjvx)p9 bt t7d9.ot 9e3qg 9vf nj cbsbatt lightbulb designed to operate at 120 voltgbb9njp )tc9 ttx73s v:o6jdqbed999 v p0xf.s?

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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 thaly6 dr i.hbnnhrm685 4t is dissipating 36 watts of powerndi .lnrh66bh 54 8mry?

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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.” ej .5as c h+j,c-3uhuo kr9)dwIn normal use, the current 3 ar c+u-d5h, usk).eow9hjcjin 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 NO )rpil9;s afq4T be produced by a circuit containing only three identia9rpil fqs;)4 cal 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 following eqdg,0 csxm,dg /2/gmjxuivalent resistances CANNg x,m/d,g2 g mdxc/0jsOT 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 differcog e98+l:k- jzsect -ent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be producg:c-j ske o8ce9t zl-+ed?

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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 re*o c5 romay3 b.ybgp3 +b1.emisistor is connected to a battery, a total power P is dissipated5.goce+mp. a1m3ibo* yr3 bb y 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 R1 and Ri . 4/jskedb7fem-kbnpf(g :+ma2wl 62, are connected in parallel, the equivalent rei k7pj6.m2k/ es(gea:f-nb d4m f bw+lsistance 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 designed such that it has a resee 6 sg6kud*r7l0c gg8istance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of8 6grgk *ldge 60esuc7 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 ehlaq ;:l/n n9 4e03iju uiz;zis dissipating 36 watts of pow34z;9 nai0hi/zu e ue jn:ql;ler?

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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 connectecw voub/6x9 *lz7xve; d to 120 volts. If the price of electricity is o7 x u6vwvb/xz9 l*;ec$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 kee qt3f.bt27l ukp a 100W lightbulb lit continuously for 1 year k2btl.quf3 7tat 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 lirr 94w/zdmrzwda:h-4 cxt:l - ghtbulb results in a power of 24.0 W asshctrxz-: r4zrdw:d awml4/ -9ociated with the bulb. Which 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 family of six owns a computer rated at 500 watts in a :k* )oin,fopeuk pqhew/ew*75x -1z8gkgcd/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 ca7 w8gxpkooce-kn)1wq/ f,: e5hdegz kpui* / *n 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 resistorsb 4q 332r i*y+tbt c4hrle6.iqxetx)k to form a simple circuit as show 2xq* 3ct r3trbbq+k 6i l)hx4ei.e4ytn 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 resistors to form a simuzfc11t kou(m kz3m+(m4y : uaple circuit as shommufkotau: m k1y(zu(c+4 z13wn 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, anc t5-idt b1kuym56 vc :j4d+fksws;r: ideal ammeter, a switch and three resistors are connected as shown. kk ut;-rc 4t w6 ssmydi 1vb:5j+5fc:dWith 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, hu .rtl8wx59wan ideal ammeter, a switch and three resistors are connected as shown. Wih. x59w8l utrwth 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 and three resis j zs(np )((8bte2venotors are connected as shownen (2j(bn o)(spzv8te. 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 is the equivaud*3 3e0bm;pgvs4oah lent resistance? Assume that all wires are ideal, the battery has no3 3 ae4do0pvshbu;*mg 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 ofyimn k8ls a 0+c2(xd4c0uhl,t the circuit shown to the right with resika+d4 cnl8y2slh,t0 0 cm(xiustances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 iderrnky1i -1zm0k6mb2rg5d ) jxntical resistors connected in a combination series and parallel circuig65r-r xkr)0z b1y dnjkimm21t 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 dx i; d35 x4szm)lugi;five identical resistors connected in a combination series and parallel cis);i; uig54x3dm ldx zrcuit 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 vbjk bjv* (vx:b-99xm of the bulbs are identical. Which bulb will be the brightest? -9v 9m(b*xj:jbbvvxk


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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 * i kz8o6v81ml sa(i0+jwnw zvideal ammeter, a switch and three resistors are connected as shown. With the switchiv6*alk w+s1vz 8ijnz m0 wo8( 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 ideajv g/zy6a7 aavwogwm 2k-)d))z br78cpq -u5rl ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter r-r72)d vr ya6kogq7jbvaw) -c5z m8azu)p /gweads 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 rei ,8qbi ,o9o 8ban7z/pclz x(yi1za 5usistors are conneczi(bl,iiby1/7a9 u8zx nzoqc,pa5 o 8ted 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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