Question

which of the following is source of electrical energy options are - 1) A Cell,2) A bulb ,3) A key,4) A volt meter ​

Answer 1

VOLT METER IS THE CORRECT ANSWER

Answer 2

A source of electrical energy is a cell. (option 1)

• Energy exists in different forms. It can be changed from one form to another and used for different purposes.
• A cell is a device that produces electrical energy from chemical energy through reactions. It is used to power many electric devices such as watches, remotes, cameras.
• A bulb produces light energy, converted from electrical energy . A key can produce mechanical energy in a lock.
• A voltmeter is used to measure the potential difference in a circuit.