# Determine the amount of heat released in the conductor by current in 1.5 minutes if the current

Determine the amount of heat released in the conductor by current in 1.5 minutes if the current in the circuit is 5 A and the voltage at the ends of the conductor is 200 V.

Given: t (operating time of the current in the circuit) = 1.5 min (90 s); I (current in the circuit) = 5 A; U (voltage at the ends of the conductor that is connected to the circuit) = 200 V.

The amount of heat that a conductor with a current will release in 1.5 minutes is calculated according to the Joule-Lenz law: Q = I ^ 2 * R * t = I * U * t.

Let’s make the calculation: Q = 5 * 200 * 90 = 90,000 J (90 kJ).

Answer: A conductor with a current will release 90 kJ of heat in 1.5 minutes.

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