PYQ NEET- Self Inductance And Energy In Magnetic Field

2017:

The magnetic field at the centre of the loop is given by:

B = μ0I/2r

where μ0 is the permeability of free space, I is the current flowing through the loop, and r is the radius of the loop.

2018:

The magnetic field inside a long solenoid is given by:

B = μ0NI

where μ0 is the permeability of free space, N is the number of turns per unit length of the solenoid, and I is the current flowing through the solenoid.

2019:

The induced emf across the rod is given by:

ε = Blv

where ε is the induced emf, B is the magnetic field, l is the length of the rod, and v is the velocity of the rod.

2020:

The magnetic field at the centre of the coil is given by:

B = μ0NI/2r

where μ0 is the permeability of free space, N is the number of turns in the coil, I