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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, 5aa,s8 n twwc*an electric 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 stac85,a *wwn 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 parallel, tfl7r5kn);dwv/s * v zf/dcm8the_________each resistor is the sa) fz5k;wmts 7dncf 8/r/v dvl*me.

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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 causes ti*bjttf4 r u21he filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens bec1 ju*r4f2tb tiause

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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 LEnn0f 3xct)v l0w2cwc nz wi9x+nn/h 9(Ds. LED is the acronym for which one of the follnc xh 0 c)nn23 9iw/9wv0 f+nztxlnw(cowing 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-section*9lg z df9i-caal 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 the new resistivity to the old resis9dl* ifgca- z9tivity 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 2y ep :mwmpq(bxr5-p*xg)q l0 has twice the diameter and twice the 0bmwxx5p-lp2q(py:* m r)eq glength 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 has twic /;p i2hwpebq1q/uja;e the diameter and half the length of wire X. If wire X has a resistanc q;pubw;qap/ 2ih1/je e 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 materiat3n t2e3jaz,yl is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this mat3e a,2jttzy3 nerial 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 wan:rw*zl ;of59kljzy- xk :n) ufts to make a brighter light bulb. He decides to modify the filame-w*ko)9 yflfl 5u:r xzk :n;jznt. 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 cylindricazxf ;i p9(v,2hachx x;l resistors are made of the same material. The length and radius of each resistor is: x;z 9phf,2axv c hx(;i
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 m6 e -,rjqrde5resistance R, are connected to a 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 resistor.” What is the equivalenee6 drj-mq5r,t 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 d ikyem9g p0w r)lq.8k9iagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The agrqw9lkpy i.k)0e 9 8mmmeter 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 circuit shown to the right. The three bulbs 1upt umj7 ks 1,r,;.if7*cdvyc , 2, and 3 - represenucji cy r,s7,p;m .v7u dftk1*ted 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 currentfvz54p:v5)jh os 6 . zxsb+ja7ick8as in all three resistors is equal,jb:z)5iz8ha67k. +f 5s ap4xsjsvvo c 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 represent6w-y/p (+( la xdpgrjus a simple electric circuit composed of 5 identical light bulbs and 2 flashlight-ru+j /pwpag yl(x(6d cells. 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 following statements is NOT tr+ z0q+q*9r s9rvuhv8f )-yj btin2xl bue concerning the simple circuit shown where resistors R1, R2 and R3 are have ur rfb -+89v 2) *zxtybnlqji+shq 90vequal 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 seri:wtg3,zlo hm 1es to a battery. 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 fm3h:gltwzo, 1ollowing 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 7/- b6u)yo efs+llkp 7e y)41vjbfe rx through the identified resistor in 5 seconds once the ci74ev b6u- l+yl/refofpe s x) 7b)kyj1rcuit 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 follo8lll i70.w9 ,tj1lsy*elqvbt wing simple circuit have the same resista twybsvl8t, liql9*le70.1l jnce, 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 i*(tadyfbdu6u ib hr0b00m/p 68gb( wcurrent through the 6.0 Ω resist6a6y irtp0gfbbubb( *(uddm /i800 hwor is 1.0 A. What 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 R3sf8,le-9bbo n 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 dissip ,8lb9bs -onefates 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 resistowd.q8 qz. b.0** krcmp)diujjn8;81er j uauirs 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 the currejjubr.ic. .*m r;8pu1 zied)q8 jwuk d0a8n*qnt 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 vol+g )r0sc3 hwvcts. What is the maximum value of the current under these conditionsc+) rw0vhc3g s?

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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 df dkoj,p6 3,ohesigned to operate at 120 volt oko6d ,jhp3,fs?

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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 dissipathom5 *kvuli irte6;35wr6;w w ing 36 watts of pu;lvh;wi wmitw*6e 5r53 6ko rower?

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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 ixl/ :gft4qq)ak8 9 .pkicqzhv 6i2bg(s marked "120 volt, 600 watt.” In norix.9iqa b)8g hp4f/vkgz 6:kt qcq(2lmal 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 cimm w); v7qxng-(-:rsycyxbd t.0; ahrrcuit containing only three ident-.cbnm;7)mxwx:yt q0(yg; a rh- vrsd ical 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. x q.) zug1up:pWhich of the following equivalent resistances CANNOT be produced using all three resistor)1z.px qugp u:s?

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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 connected together idjuf dgzta7(* g)o0/a n different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be produced?a dd0ju*(g 7/foz)ag t

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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 power P 7(t)zxw )8 o2suzszg wis dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the samez( 7zzo2) 8 uswxgs)wt 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 R2, are connecte.0t5p.nnb p t)bmi d+cd in parallel, the equivalent resistance i. tdb5)cbppnt 0n+m.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 resistance of ) sjbt e67mcv0kp *ro+mhaf(/ 12Ω when operating at 120 volts.0crt / a*omem 6+7 pkhvfjb(s) What is the 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 thro8z -s82kq iujw : dkdkd09rkz4ugh a 4 ohm resistor that is dissipating 36 watts8k2 z-qduk i4j9dkw08kdz r:s 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 1 *2-hfg 8qd zgcmzj).qqse w-420 volts. If the -qz e)gmq4f jcs-.hdq z2wg*8 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 kee;y.5sl4 bjy wvp a 100W lightbulb lit continuouslyyv5yl. 4jsw;b for 1 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 resupxki)m3(sa if*5kcsg p+a;yn+h2z 8 ults in a power of 24.0 W associated with the bu 3u ny* h+mz cxgap2;ps5s8)(i+kkifalb. 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 ivav ;hmb81-e+k -ol afn a 120 V circuit. If all computers are plugged into a single circuit ; -lokav b+f- eamhv18protected 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 form a simple circs-tk6m5khaz j//9e pnu+t mqa b/ *9vxuit as showz qbu/*e9maa tp/6kshm5 -+k nxtjv9/n 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 simple c5duhya)mdyw+7vn5 t(d/ojr . ircuit as shown to tuw)yy+vatd5 hn d/o7 dm j(r5.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 battery, an ideal ammeter, a switch and three resistoh7kp2 vqb+/s jrs are connected as shown. With the switch open as shown in th hj/+p27bsk qve 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 pz o7gqp+-8d fare connectep-z8o qfp7+ gdd 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 and three reswxakw.5,i1ofg b7, nd istors are connected as shown. With the switch open as shown in the diagrw 7 w1nd5a, gfkobi.x,am 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 equivalent resistb9 n5nhqg zn8/z1 llg1ance? Assume that all wires are ideal, the battery has no internal resistance, and all 1g zl15nzg/8 nnbqhl9 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 tdcl+pk.rhs 47 dc m.3zhe right with resistamk7. 43pc zhcr.ddsl +nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 in lvb,j vc-.f fqq:b(x4 a combination series and parallel circuit to a voltage sourj(vbvl. qc:,-bfq x 4fce.
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 comb8r-r9 6ahvk+ta h9iakination series and paral9a v8 arti6k+- ahhr9klel 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, all of the bulbs q ;jas+*trl+f n+p +2:lx rhfu1gzaz+ are identical. Which bulb w+f :+f*a 2+;hl1+zx r tzpjgln u+srqaill be the 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 v .(:ql2:uhbt/qupe i+/y 3mhhy c9sqand three resistors are connected as showetu2/y hqy+h: 3( / iluqcm9hbsvp:q.n. 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 switch and three resc ypc (vcj +l1r:uzk;(istors are connected as shown. With the switch open as shown in the diagram the ammeter rea;c(+ upv ykrccj:(z1lds 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 thg25wm7 +nln) xgl ex)eree resistors are connected as shown. Wimln5gexg )wl +2en)x7th 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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