Electricity is like magic! Inserting a plug into a socket brings all our appliances to life. Be it TV, fridge, microwave, or even a phone charger! In this video you’ll learn how exactly a plug connects an appliance to a socket.

Have you ever noticed that some appliances have plugs with 3 pins while others have plugs with 2 pins? Why is that so? To understand that we first need to understand what it is that the 3 pin plug actually does. The function of the 3rd pin is to provide earthing to the appliance in case of any malfunctions that can cause electric shocks. Learn more about earthing in this video and understand how it is done in our houses.

But why do some appliances like TVs or mobile chargers have only 2 pin plugs? Do they not require earthing? Tune in to the latest installment of the Now We Know series to find out.

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