Learn Lenz's law definition and examples with explanation, practice to calculate direction of induced current in loop of shape '8' and a Coil while entering and leaving the magnetic field & due to current in another coil.
Case 1 : When bar magnet is stationary
The magnetic flux linked with coil will be constant as the number of field lines passing through coil is constant.
Case 2 : When bar magnet is moved closer to coil
The magnetic flux linked with coil will increase as the number of field lines passing through coil is increasing.
Case 3 : When bar magnet is moved away from coil
The magnetic flux linked with coil will decrease as the number of field lines passing through coil is decreasing.
Note: We can assume the direction of induced current in any direction, as it comes with its sign while calculating.
A Clockwise
B Anticlockwise
C No current
D None of these
A Clockwise
B Anticlockwise
C No Current
D None of these
A Anticlockwise
B Clockwise
C No current
D None of these
Lenz's Law states that the change in magnetic flux, induce the current in a closed conducting loop whose direction is such that the induced magnetic field opposes the change in the flux.
A Clockwise
B Anticlockwise
C No Current
D None of these
A Anticlockwise
B Clockwise
C No Current
D None of these
Thus, the bar magnet will experience a repulsive force towards itself.
A \(+\hat j\)
B \(-\hat j\)
C \(+\hat i\)
D \(+\hat k\)