In a wire with a resistance of 1 Ohm for 1 s, an amount of heat equal to 4 J is released

In a wire with a resistance of 1 Ohm for 1 s, an amount of heat equal to 4 J is released, what is the current strength passing through the wire.

To calculate the value of the current in the wire taken, we use the formula: Q = I ^ 2 * R * t, whence we express: I = √ (Q / (R * t)).

Variables: Q – amount of heat (Q = 4 J); R is the resistance of the wire taken (R = 1 Ohm); t – time (t = 1 s).

Let’s make a calculation: I = √ (Q / (R * t)) = √ (4 / (1 * 1)) = 2 A.

Answer: The current in the taken wire is 2 A.