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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 the metal resi - k;v:84rcjf u.jsgkhstor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction o4hjvf k:rskc. ; j8ug-f 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 resistt-n fmr(8- j rkqm9)xc y;.nghors are connected in parallel, the_________each resistor is the sfy r -h.8kqrc9njm)txg(-m; name.

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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 wire4i(y1ie bvuf - of a lightbulb causes the filament to become white hot, while the ui vf(e-b1y 4ilarger 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 8g4l/4s u6jhmzxp0w yis the acronym for which one of/smp jz6w4h4l0y8 gx u 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 grapu nrpi44vjvexbw:gn3 0b 0i6 2hite 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 ge6i2rbv40vpb0n: xni3u4wj 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. Wirxm bismt5, ajrw) *10 /qt0brre II has twice the diameter andttrr*r bw x)bm,s/am ji0q015 twice the length of I. 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 material but r zve 5:3ap2 czos,-tyhas twice the diameter and half the length of wire X. If wire X has a resistance of R then wir-2av5sp ,c3rezoyzt :e 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 resistoxkqb 7np 1(29 f)drzbtr has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2Lz fd1pb)qt9x2kr b7 (n. 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 Edison wants to make a brighter light bulb. He de1/qhsru 8lp2xuwngy w.e k8 rcz-4 0yk fx/5+lcides to modcrry 2 / pwu+hlg x-8uxw58l./0yzk4efk 1sqnify the filament. 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 resistors are made of the same material. The length xu:j3uhjv/ koe9z 1o6 and radius of each resistor isok3 69 u:uo1jj hex/vz:
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 c+wa:gdtv w2e-ye z: /bb5)xt j d47mpto a battery in the following way: “Two resistors are connected in series. Thmx4 cg2 j b tv:wd/a5e-yp)7b:dtew+zis 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 accompanying circuit diagram has int1g/g rn rtxuu le8:z.h t/r 4fb;s(a7jernal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter readit1 larxz/.r7bgs:r4 j; (u/8gfue thnng 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 shown tov l: rkv b2;7c14sqnwb the right. The three bulbs 1, 2, and 3 - represented as resistors i:sk; 1l7r2q bcw4 vvbnn 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 elz60o tc sr9bceg:;m -nectrical circuit at the right. If the current in all three resistors is equal, which of the following statements mec cn-6sbzrt :m g;09oust 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 circui k(4ib)fv+koh+pz u v pe9;ec,t composed of 5 identical light bulbs and 2 flashlight cells. Which bulohfzepp evc;kk+i+(,4 9b )vub (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 statements is NOT true concernxb6rl5f5 -gc ring the simple circuit shown where resistors R1, R2 and R3 are have equal55 6xblrr cgf- 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.hw k,1lnashz0- 9(js ww2f qi4 Bulb X is brighter 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 choicewq1 wszi04jhfs,2hw 9 a(knl- s 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 wnp -*z2zxrn(o:11 rfyzmpa(fr7i a a:ill pass through the identified resistor in 5 seconds once the circuit was clofzn( rpyaa :2ip1fm17 nz*-zaor(r: xsed?


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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 resisto0 vq5(qseyeuezs1o jn 972,puy i 2u9hrs in the following simple circuit have the same resis9pozvyy7 q j,e2uq 9uueh 5e20ss in(1tance, 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 accompan 4 ae41atx)z hi,punx:ying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage a)4nxu1, z pext4h:ai 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 resistodav zys0 yq/;b79ku,o rs 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 s/ 7zv9a y0qbudky,o; 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 connected in prb5:3ma qg;p-fcc oev. o5z-qarallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipate:v;qp5qefzora-b 3c-c gom.5s 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 rated 1200 watts and 120 volts. r 9 , y;3gmc)zbw90hrzx*dl rk What is the maximum value of thl0ycgh ) ,x zzrb3kr9;wm*9rd e current 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 ligh)v m , b--d+6ezgs5pk4pfzwxotbulb designed to operate at 120 volts?go z5wf ,)m4p+dz6e-- s bkpxv

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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 isgutk7/()gs x o dissipating 36 wa 7ksx/utg) og(tts 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 us:oh)2 4z snknc eflddv,.04g 4 ixpgn:ed to press clothes is marked "120 volt, 600 watt.” In nodl, i:z4kf d.pn42nvgx:nhcg) 4e 0sormal use, 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 could NOT be produced by a cir kpc -/pcp3sv. nx5g/ecuit containing only three identical 6Ω pegpc .ksn/53/v- c pxresistors?

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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 thdgun,.ihxd +- j9:ym eree 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced m,+ .gjd9ye-hd:nu xi 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 lt;lq91jmu 2-ikallr3 7e d2n connected together in different configurations. If all three resistors are used in a circuit, how many different values of total9dauqlj r7i2lllm n1;3tk 2 e- 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 resistcsan l 4oxi)bga6+:-h or is connected 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 using the same battery? Assuma) b x6 h4c+gn-oali:se 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 R2, are connected in pah;2svvvswt2 f/g;rt8hly + 3l rallel, the equivalent resistance of the combination is 5Ω . Which of the following stltv/ 8 vrh ys;2+htf;2gl3swvatements 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 ou)tygg2l98g rx2u a.it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it woulo)u2ta 8 l9.yggu2 grxd 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 thkwi.+45e7 (j xp un bv5h+ggbsat is dissipating 36 wag5(xivbh4n7eubsgkw. pj +5 +tts 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 to 120 volqbw/awb3/rdq v 4;vg 5ts. Ivb;4 w3r vbaw//5 qdgqf 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 wou+vxyd+:nrr;vh6. byl ld it cost to keep a 100W lightbulb lit continuously for 1 year at a r.+ln;rx+ yh6r byv:d vate 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 results in a po,, ijxap/k*- 6p+p uwxqh* kodwer of 24.0 W associated with the bulb. Which one of the following choices best-,xkiqhd6wjk p pxp+,**/ou a 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 a*pwn )jq 8esy8t 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fusnp8wyesj*)q8 e, 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 r7 ux9e8eo w 9o8ctjc81a ,pbmtesistors to form a simple circuit as shown to w, 7a91o8m 9t8uxotb e cp8cjethe 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 f k0y r4qv0 y /uferut6:nz;z(aorm a simple circuit as shown to theenk vf4 ;q zy/(u:0uy60tzrar 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,clge; ;v ce+5o a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amml+ ve;ec 5gco;eter 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 resistobri jrm6xdeo;u25 j+)rs are connecte j b2eimr+;6ux5jo )rdd 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 idefeyu(t34yi;,0e 7,f )sa.,rqmv8hw m ozip k xal ammeter, a switch and three resistors are connected as shown. With the switch opo0;w ey 4iazxe8 smq y)7,i.,(fhpk mv,tf3uren 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 ygp 7 2nik)f+m5gv*jtis the equivalent resistance? Assume that all wires are ideal, the battet+kj nmpigvfy2)*g5 7ry 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 with y-co/dzt7 r,w resistances -dy/co, 7rtwz$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 iykrro (c v8p(wy(geks2-4u - ln a combination series ay2 (rpk sk-(gowl rcv(-e y4u8nd 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 fivk 3,h1 u ojx,dqc4tcr1)fp 8nve identical resistors connected in a combination sej83r x4qc1o1,)kn d,v hutpcfries 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 circuit diagram, alppfn((fuim ;jk3di iu1 6tr., l of the bulbs are identical. Which bulb will be the uir ik(1n(f3mi,6;pf tp .judbrightest?


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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 amm+ crj0y gahn/hc(; no,pol7 .deter, a switch and three resistors are connected as shown. W;d/h hrgaonc p7oylc +0. n,(jith 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 switch and three resistors are conn8ki4ns x79yfp )w/roh ected as shown. With the switch open as shown in the diagram the amm)so fr48hxy 7ni9kp/w eter 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 ammete:0dbc7i nyo y.r, a switch and three resistors are connected as shown. With the switch open as shown in the diagram nd :c7yy.o0 bithe ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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