An engineer investigates a halogen spotlight designed for a 12 V12\text{ V}12 V portable lighting system.
Graph measurements show that when the spotlight is first switched on, the current momentarily spikes to a peak before settling down to a normal operating current of 2.5 A2.5\text{ A}2.5 A.
Calculate the normal operating power of the spotlight.
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 2.5 A2.5\text{ A}2.5 A when the spotlight is first switched on.