Question

1 kWh equals ______.

Options

• 3.6 J

• 3.6 M J

• 3.6 kJ

• 3.6 × 10⁶ M J

Answer 1

1 kWh equals 3.6 M J.

Explanation:

1 kWh = 1 kW × 1 h

= 1000 W × 3600 s

Since,

1 W = 1 J s⁻¹

1 kWh = 1000 × 3600 J

= 3.6 × 10⁶ J

= 3.6 M J