A laboratory technician is calibrating a high-precision tungsten micro-heater designed for a 36 V mass spectrometer inlet.
When the heater is first switched on, a transient current spike is recorded before the system stabilizes to its normal operating current of 1.5 A.
Calculate the normal operating power of the micro-heater.
Use the equation:
power=potential difference×current \text{power} = \text{potential difference} \times \text{current} power=potential difference×currentExplain why the initial current is much higher than the normal operating current of 1.5 A when the micro-heater is first switched on.