An electron moves on a straight line path XY as shown. The abcd is a coil adjacent to the path of electron What will be the direction of current if any, induced in the coil?
adcb
The current will reverse its direction as the electron goes past the coil
No current induced
abcd
Faraday’s First Law -
Whenever the number of magnetic lines of force (Magnetic Flux) passing through a circuit changes an emf called induced emf is produced in the circuit.
-
Initially electron is approaching the coil and then its leaving the coil. Hence first flux will increase and then decrease. Direction as electron goes past the coil.
Option 1)
adcb
This is incorrect option
Option 2)
The current will reverse its direction as the electron goes past the coil
This is correct option
Option 3)
No current induced
This is incorrect option
Option 4)
abcd
This is incorrect option