Question

The headlamp of a car take a current of 0.4A from a 12 volt the energy produced in 5 minutes is

Answer 1

1440 J

Step-by-step explanation:

Voltage (V) = 12 v

Current (I) = 0.4 A

Time (t) = 5min = 300sec

Power = Voltage x Current;

P = V x I = 12 x 0.4 = 4.8 W

We founded power, so for now we have to find energy. We will use another formula of power:

Power = Energy / Time

For now we will rearange the formula to find energy:

Energy = Power x Time;

E= P x t = 4.8W x 300sec = 1440 J

Answer 2

To calculate the energy produced by the headlamp of a car in 5 minutes, we can use the formula: Energy = I^2 * R * T, where I is the current in Amperes, R is the resistance in Ohms, and T is the time in seconds. Since the resistance of the headlamp is not given, we can assume that it is negligible, and therefore, the formula can be simplified to:

Energy = V * I * T, where V is the voltage in Volts, I is the current in Amperes, and T is the time in seconds.

Using this formula, we can calculate the energy produced by the headlamp of a car in 5 minutes as follows:

Voltage (V) = 12V
Current (I) = 0.4A
Time (T) = 5 minutes = 300 seconds
Energy = V * I * T
Energy = 12V * 0.4A * 300s
Energy = 1440 Joules

Therefore, the energy produced by the headlamp of a car in 5 minutes is 1440 Joules.