Question

The reason why earth wire is used is:

• A. To direct any leaking charges into the earth
• B. To provide safety to devices and their users
• C. To improve the aesthetics of the circuit
• D. To provide extra current to the appliance

Answer 1

Answer: (A), (B)

The correct options are
A

To direct any leaking charges into the earth

B

To provide safety to devices and their users

When there is a leakage of charges, the earth wire directs them to the earth to neutralize the net charge of the body. This is a safety measure, so that even when leaked charges are present in the appliance, a user touching the appliance won’t experience any charge flowing through him, as the charges will flow through the earth wire because it offers less resistance.