Question

find the heat produced in calories when a current of 0.2 A is passed through a word of resistance 20.9 ohm for 10 min.​

Answer 1

Answer:

You can find the answer by this type of method because i do not know how to upload a image.

Explanation:

The power dissipated in the coil is P = I^2R = (0.3)^2 ٠ 418 = 37.62 watts = 37.62 joules/sec. In one minute, the amount of heat energy produced is E = P٠t = 37.62٠60 = 2257.2 joules = 2257.2 /4.184 calories = 539.48 calories.