Final answer:
The heat produced is 80 J.
Step-by-step explanation:
The question concerns calculating the heat produced by a heating coil through which a current is passed for a certain amount of time. Using the formula Q = IVt, where Q is the heat energy in joules, I is the current in amperes, V is the potential difference in volts, and t is the time in seconds, we can determine the amount of heat produced. In this case, we have a potential difference of 5V, a current of 4A, over a period of 4 hours. To calculate the heat produced, we can use the formula:
Heat (H) = Current (I) x Time (t) x Potential Difference (V)
Given:
I = 4A
t = 4 hours
V = 5V
Substituting these values into the formula:
H = 4A x 4 hours x 5V = 80 Joules
Therefore, the heat produced is 80 J.