Hi,
A 25W/12 Ω resistor is to be used as a heating element. It is desired to get it hot up to 100°C. The questions are:
A 25W/12 Ω resistor is to be used as a heating element. It is desired to get it hot up to 100°C. The questions are:
- Can it be connected directly to the output pin of a microcontroller (which can only output upto 5V) or an additional cicuitry is required (for more voltage and current)?
- How much current and voltage is required in general for such purpose?
- Which quantity plays more important role in such cases: current or voltage?