Determine the energy consumed by a flashlight bulb in 120 seconds, if the voltage on it is 2.5 V

Determine the energy consumed by a flashlight bulb in 120 seconds, if the voltage on it is 2.5 V and the current strength is 0.2 A.

Task data: t (duration of the light bulb) = 120 s; U (voltage across the light bulb in question) = 2.5 V; I (current) = 0.2 A.

To calculate the energy consumed by the light bulb, we will use the formula: Q = U * I * t.

Let’s perform the calculation: Q = 2.5 * 0.2 * 120 = 60 J.

Answer: The light bulb in question consumes 60 J of energy in 120 seconds.