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  1. Because the bulb filament will easily be oxidized under high temperature(about 2000 degree C).While argon is an stable noble gas, it will not form compounds with the bulb filament, so that the bulb have a longer service life.

    分類:科學及數學 > 化學 2007年09月20日

  2. ... AMOUNT OF CURRENT OF EACH BULB (總電路電流=各負載元件電流總和) So That : I=...

  3. ....在SERIES CIRCUIT,,,2 個 BULB 的 VOLMETER READING 同AMMETER..., 1ST Branch 的 BULB 同 2ND BRANCH的 BULB ,,的...

  4. 通常呢啲科學實驗用嘅細燈泡可以喺普通嘅五金舖度買得到

  5. The bulb will light up. Let's assume that the electric cell is 2V per cell. The point that the larger electric cell connected to the bulb should be 4V and the point that the smaller electric cell connected...

  6. 1. If the resistance of each light bulb be R, then we would have the following equivalent resistance in each circuit...left-upper position has been by-passed, leaving only two bulbs connected in parallel. The circuit diagrams for the other ...

  7. Bulb B1 is connected in series with a resistor. The resistance... as the source, the resistance is the same. Thus the current and the bulb brightness remain unchanged. 2011-04-08 23:19:53 補充: Also, a 12v...

  8. I suppose you are referring to a 100-watt light bulb . 1 watt = 1 J/s, hence 100 w = 100 J/s 1 hour = 3600 s, hence 5 ...

  9. 1) First of all, the bulbs in Christmas tree lights are ...to the relation P = (I^2)R, all other bulbs will also consume a current much less than 0.5A. ...

  10. 1. Since the voltage rating of each bulb is 3 volt, and is connected to...source in parallel = 12/3 = 4 But there are 2 bulbs in each branch, the total no. of bulbs = 4 x 2...

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