Introduction:
A dynamo is a machine used to convert mechanical used to convert mechanical energy into electrical energy. When it is driven by the engine it produces electricity for running all the electrical circuits of the automobile and keeps the battery in charged condition. This is the function of dynamo.
Principle of Dynamo:
“When a conductor moves in a magnetic field, current is produced in it. The direction of current is determined by Flemming’s right hand rule”.
Flemming’s Right Hand Rule
If thumb, fore finger and middle finger of right hand are stretched so that they are mutually perpendicular then the direction of induced current in the conductor can be found out by this rule.
“If the fore finger indicates the direction of magnetic field and the thumb shows the direction of motion of the conductor, then middle finger will indicate the direction induced current”. This is called Flemming‟s right hand rule.