A deep-sea research submersible is equipped with an external tungsten-halogen floodlight designed for a 48 V48\text{ V}48 V power supply.
Oscilloscope measurements show that when the floodlight is first switched on, the current transiently spikes to a very high peak before stabilizing at a constant operating current of 3.5 A3.5\text{ A}3.5 A.
Calculate the normal operating power of the floodlight.
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 3.5 A3.5\text{ A}3.5 A when the floodlight is first switched on.