The headlamp of a car takes a current of 0.4a from 12vot 5mins ?

The energy consumed by the headlamp can be calculated using the formula:

Energy (in watt-hours) = Power (in watts) x Time (in hours)

First, we need to convert the current from amperes to watts. Since Power (in watts) = Current (in amperes) x Voltage (in volts), we have:

Power = 0.4 A x 12 V = 4.8 watts

Now, we can calculate the energy consumed by the headlamp:

Energy = 4.8 watts x (5 minutes / 60 minutes) = 4.8 watts x 0.0833 hours = 0.4 watt-hours

Therefore, the headlamp of the car consumes 0.4 watt-hours of energy in 5 minutes.