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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 eliqliue id( 8un4e6i8pf e g w19w.yh0ysg66,hectric 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 of the electric field 8ys l9 8e4nue(f6hii6yq6u1 ,iw.w egd ip0ghthrough 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, the__h)78tq)4up3shq zsr d _______each resistor is the ) )p q34huqz 7st8hsrdsame.

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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 filamziv5i)encz9 t yux1(3u dh(.pent wire of a lightbulb causes the filament tuz(x59yvp u1dintz3(i). c eho become white 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 lig7sc wp nn;x;h5hts are being replaced with LEDs. LED is the acrony;sw5 xp c;nn7hm for which one 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 Lk u snk4 gpku/,n73rv;;n.dmh 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 the new resistivity to the old resistivity of the cylindrical resistodugmrh 3k nps.4k nv/u ,nk;7;r?

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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 maur3p- wkqw8- c mn48wxde of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resistance rn83c-qkww 4wmu8p-x

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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 mg/bil.zi6e6etf2i1 of the same material but has twice the diameter and half the length of wire X. If wire X has a bz6e. iim g/ l6t1ef2iresistance 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 xw2ks7;lzydz a2c)v 8 material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material 7;2ldw28 )zaksxcv yzbecause 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 bs1vd-c 9vjq6y ulb. He decides to modify the filament. How should the filament of a lightbulb be 6-s1dcq vvy 9jmodified 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 ma7 7tl2ybv 7ab--wggmd terial. The length and radius -ydlwg7-2 ba7vmg7tbof each 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 yf yo:,l*)v 1tb /eosvthe following way: vb,sy):e t1 f *yol/ov“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 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 cw62sr iseeubt .0 2ty1ircuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The biyr s2w t.e06se1ut 2voltmeter 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 tom(3i b1)dbtew the right. The three bulbs 1, 2, and 3 - represented as resistors i1btied (w b3)mn 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 att7 l*5w6zch lb2u+ jtc the right. If the current in all three resistors is equal, wh*c57lubcl tw2zj 6ht +ich 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 cgzcp er zw,4ia)f77pw,uqb77omposed of 5 identical light bulbs and 2 flashlight cells. Which b ,wf qrc7ipwbz)pu47a7ze 7g,ulb (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(y4 ph tb k.7f9yxjsh2ue concerning the simple circuit shown where resistors R1, R2 and R3 are have equal (h79p.y y4fhxkt bs2 jresistances?


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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 bri ,22k yuqxc cp0:1ei z0gd.ouoghter 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 choices eydu0 cgzx u1: pqk2o ,ic20o.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 couloms:bgt7 b0gs bw7e/oq ,bs will pass through the identified resistor in 5 seconds once the circuit 7bt qsgsw:7 ob/g, e0b 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 fol2ts6x2ha.nv rqojww0 v71 4xa lowing simple circuit have the same resistance, which wouldna22qxax71w06orv shtwj.4 v 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 circjb:uunx ar 7x7hb j65-)ws ir:uit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply volnu:-us)6 7hbija5rwrx x j: b7tage 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 sec aab/kd3::k7h) zdozries to a battery. Suppose R1 carriesk z:kc/ :7odda 3)bazh 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 akw phf*9h:nnbfkj9 c7p4qz7. ndR3 are connected in parallel to a battery. Suppose R1 has 2V acros49kf*q7w9:pjb z. fchp h knn7s it, R2 = 4Ω, and R3 dissipates 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. What is the maxim0l y6*xt mvxg:um value of the current under these conx0 y:m6x* gtlvditions?

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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 resjz1kj/.x eunqvic8+; istance of a 60 watt lightbulb designed to operate at 120 voli; n8jqzjk/ e1x+ u.cvts?

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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 tha z b (*-ws:x5jjigfym:t is dissipating 36 watts of powerx -m*:zb5 yw:f(sjgij?

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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, 6006 x0ko1x+uwbdns u56 a watt.” In normal use, the coudw xukn0 6+ax516 sburrent 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 pcq,67s7ngjz wroduced by a circuit containing only three identical sg 7 jqz6cwn7,6Ω 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 ckq x9is ).:;wozb7h wthree 1.0 Ω resistors. Which of the following equivalent w.ox)wc k7:iq ;9z bhsresistances 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 connected together in diffegsdg 8-cdx ,r.d, f5ssz5to/srent configurations. If all three resistors are used in a c5dt,c 5g8s-o gz .d d/sxsfrs,ircuit, 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 tote48wu+50 wlilxt h y1dal power P is dissipated in the circuit. How much total power is dissipae8 uh4itwd 5w+0lx1 ylted 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 R2, are connected in paralrzvg.tn:72m;8 hh zma(8jdsnvm .a 1 rlel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the hrra2znt m zj8g8dv.h7(1a;:.nvs mmresistances 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 resistanf66rn/ *gb6j k9daok v:k:jycce of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to wa:a66kj9rk/y d*kbc6f: jng v orm 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 dissipatinv zw(w rl)-s;:x9c-yxwoq ki8g 36 watts of powersww)o(z-v li:;r 9xycx 8q kw-?

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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 tpoq )vj4+jfj3a38b rxo 120 volts. If the price ofrbj8) vpfj3a4j3+qox 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 ligh5tp 62 li0mbt continuously for 1 yearg50hpm 6btil2 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 results in a power )5a*pm jbqf3gs1r ni7of 24.0 W associated with the bulb. Which one omr jbsn p5)gf* 1a3i7qf 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 tcyuk -d 54w5w120 V circuit. If all computers are plugged into a sin5wutyw5 -d 4ckgle circuit protected 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 toni rl6d)r25vb four resistors to form a simple circuit as shown to the rlvn dbr)ir5 26ight.
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 c/ j76f+;qk(lpht wmt tonnected to four resistors to form a simple circuit as shown to the rightwjkf qttt(; 6m +/h7lp.
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, eas3qv (c-8adan ideal ammeter, a switch and three resistors are connected as shown. Withaa8 qed(vc -s3 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, an ideal ammeter, a switch and three resislg inf+1+sd,rww2p -4one -d ytors are connected as shown. With the swit+idw- fdsn1elw,4g-+ ynpo r2ch 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 resistors arb1 4fsp9n6vmhqck s8eefb3a9. )z -vee connected as shownqsceh 9813 fambf-s4zkn 9)vvepe 6b.. 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 tod cm,+q7:jx g :huezl+ the right, what is the equivalent resistance? Assume that all wires aj gzh,e 7:+: mquclx+dre 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 right with r9-a/4xp ,tzsxf o wza4:irf d6v18qvw esistanc wz oxavia:ts1f- 4zw9,8rpv x/d46qfes $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 3h eb -vac-l1uz8 ldqa wf8yh o9g:uh(a*b. c2five identical resistors connected in a combinatio3h8*8a: 1h9ab b2 zelhua wqc-dv-o (.fgu lcyn series and 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 resistors connezxgjss uk:687 h hgp0j,7csvf 0m(vl5cted in a combination, zulshhgs7ps:86vxvkf 7 j cg0m50j( series 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, all of the bulbs are idenwy7bq)b,v n .ntical. Which bulb will be the brightest?wb .yn7bnq)v,


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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 ammeth. poh ly,q0;wer, a switch and three resistors are connected as shown. With the switch open as shownq.0;plhh,y wo 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 ammetea*4wxmesl.i mz9mc:3(1: p dd ai:zvor, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the am:i1m. 4:al3zi mepz:oxd* va9m(wd csmeter 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 are cobn:l ryibi 4p,2 51crtnnected as shown. Withp i1i4r tc:rb2yn l,5b 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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