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DISCUSS PHYSICSSSS!!

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Aizen said:
hey guys ive done da pprs just from 2004 to 2009.but wenever i see a question i can easily solve it.is it enuf for tomorrow's physics ppr?
Yep! Just go through the main points from the book..
 
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describe the action of a bipolar npn transistor as an electrically operated switch and explain its use in switching circuits.
 
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