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Give Scientific reasons. In practice, the unit kWh is used for the measurement of electrical energy, rather than joule.

Question 11.

Give Scientific reasons.

In practice, the unit kWh is used for the measurement of electrical energy, rather than joule.


Answer:

As joule is a very small unit of energy but kWh is a large unit of measuring electrical energy so in practice the unit kWh is used for the measurement of electrical energy, rather than joule.


1 kWh = 3.6 × 106 J