To calculate the energy produced by the headlamp in 5 minutes, we need to use the formula:
Energy = Power x Time
First, we need to calculate the power used by the headlamp. We can use Ohm's Law to find the power:
Power = Current x Voltage
Given that the current is 0.4A and the voltage is 12V, we can substitute these values into the formula:
Power = 0.4A x 12V
Power = 4.8W
Now, we can calculate the energy produced by the headlamp over 5 minutes by multiplying the power by the time:
Energy = Power x Time
Given that the time is 5 minutes (which needs to be converted to seconds), we can substitute these values into the formula:
Time = 5 minutes x 60 seconds/minute
Time = 300 seconds
Energy = 4.8W x 300s
Energy = 1440 Joules
Therefore, the energy produced by the headlamp in 5 minutes is 1440 Joules.