Question

5. Express 1 unit in terms of joules.
[Ans.: 3600 kJ​

Answer 1

Explanation:

The joule (symbol J) is the SI unit of energy—a measure of the capacity to do work or generate heat. One joule equals the work done (or energy expended) by a force of one newton (N) acting over a distance of one meter (m). ... One calorie of heat is the equivalent of 4.186 J.

Answer 2

Answer:

1 kWh = 3.6 × 10⁶ J

Explanation:

1 unit = 1 kWh

1 kWh = 1 × 10³ W × 3600s

= 3600s × 10³ W

= 3.6 × 10⁶ J

Therefore, 1 kWh = 3.6 × 10⁶ J