Number of Coils: As the number of turn increases, the voltage induced in the coil increases. In other words, the induced voltage is directly proportional to the number of turns/coils of the wire.
Varying or changing magnetic field: By moving the magnetic field around the conductor or moving the conductor in the magnetic field, the induced voltage can be varied.
According to Faraday’s law of electromagnetic induction, the amount of voltage induced in a coil is proportional to the number of turns of the coil and the rate of changing magnetic field.
Mathematically, the induced voltage can be given by the following relation.
e is the induced voltage (in volts)
N is the number of turns in the coil
This rule gives the direction of the force exerted on a current carrying conductor placed in a magnetic field.
According to this rule if we hold the thumb, the forefinger and the central finger of the left-hand mutually perpendicular to each other and if the forefinger points in the direction of the magnetic field, central finger in the direction of the current, then the thumb points in the direction of motion (or the force) on the conductor.
Start your learning Journey !