The head lamp of a car takes a current of 0.4A from a 12 volt supply.What is the energy produced in 5 mimutes
0.4A * 12V = 4.8W
4.8W * 300s = 1440J
To calculate the energy produced by the headlamp of a car in 5 minutes, we can use the formula:
Energy = Power × Time
First, we need to determine the power (P) consumed by the headlamp. We know that the headlamp takes a current of 0.4A (Amperes) from a 12V (Volts) supply. Power is given by the equation:
Power = Current × Voltage
Plugging in the given values:
Power = 0.4A × 12V
Power = 4.8W (Watts)
Now that we have the power consumed by the headlamp, we can calculate the energy produced by multiplying it by the time (t) of 5 minutes, which needs to be converted to hours:
Energy = Power × Time
Energy = 4.8W × 5 minutes × 1 hour / 60 minutes
Converting minutes to hours:
Energy = 4.8W × (5/60) hours
Energy = 0.4 watt-hours (Wh)
Therefore, the energy produced by the headlamp in 5 minutes is 0.4 watt-hours (Wh).
To find the energy produced by the headlamp in 5 minutes, we can use the formula:
Energy = Power * Time
First, we need to determine the power consumed by the headlamp. Power is defined as the product of current and voltage, so:
Power = Current * Voltage
Given that the current is 0.4A and the voltage is 12V, we can calculate the power:
Power = 0.4A * 12V
Power = 4.8W (watts)
Now that we have the power, we can calculate the energy produced in 5 minutes:
Time = 5 minutes = 5 * 60 seconds = 300 seconds
Energy = Power * Time
Energy = 4.8W * 300 seconds
Energy = 1440 Joules (J)
Therefore, the energy produced by the headlamp in 5 minutes is 1440 Joules.