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Hi All,
I had forgot all the formula for engineering science to determind speed, velocity, w (omaga ), acceleration and force. Any one still remenber this formula? or any web page have this formula?
Regards,
Doubledragon
Re: Determine R
Actually, the circuit is apply for IR transmitting and valid light LED.
I though Vdrop = Vcc - Vled = 5 - 1.2 = 3.8
then R=vdrop/Iled= 3.8 /100m =38 ohms?
Added after 6 minutes:
But i trying use multisim to simulate the circuit.
R below 4k, the Transistor is working and...
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