HI,
If you have a resistor, say 10 Ohms, and you apply a voltage across it, say 10V
the resistor will dissipate V*R=10W. So you would need a 10W resistor for the job.
But what about if you draw current for a short period of time, say 0.1 sec?
Could you then use a lower rating resistor?
Is there any way that you can calculate, and make a chart, the time-on vs power dissipation?
Regards
Francesco C
If you have a resistor, say 10 Ohms, and you apply a voltage across it, say 10V
the resistor will dissipate V*R=10W. So you would need a 10W resistor for the job.
But what about if you draw current for a short period of time, say 0.1 sec?
Could you then use a lower rating resistor?
Is there any way that you can calculate, and make a chart, the time-on vs power dissipation?
Regards
Francesco C