Fisheries Extension Education (2+1)

Mikes are of four types

1. Uni dimensional Mike – It can pick up the sound from only one direction. It is used in public meeting.
2. Multidimensional Mike – This picks up the sound from any direction It is used in places where there are lot of people speaking et the same time.
3. Color Mike – The mike will be of small size with long wire connected to the amplifier.
4. Cordless Mike – There will be no wires leading to the amplifier. It is proved with remote control for operation.

The mike has the diaphragm inside which vibrates to the sound produced in front of it. The sound energy is converted into magnetic energy and sent to the amplifier using a mike jack. The mike jack is usually a coaxial cable with inner conducting core material covered by a plastic sheet over which there is another layer of conducting materials. The mike is connected to the amplifier using two types of provisions – a screw type and a socket type.