When a magnet is sliced transverse to the length into two equal parts then the pole strength remains ___________ and the length is reduced to _________.

​CONCEPT:

• Magnetic field: The area around a magnet (or a current-carrying conductor) in which its magnetic influence can be felt is called a magnetic field.

Magnetic moment or magnetic dipole moment (M) = Pole strength (m) × magnetic length (2l) = 2 m l

• Transverse cut: When the magnet is cut into two equal lengths then the pole strength (m) of the magnet will remain the same but the magnetic length (l) will come half.
•  

Magnetic moment (M₁) = m × l = m l = M/2

• Cut along the length: When the magnet is cut along the length then the pole strength (m/2) changed to half but the magnetic length (2l) will remain the same.

Magnetic moment (M2) = (m/2) × 2l = m l = M/2

EXPLANATION:

• From the above discussion, we can say that when a magnet is sliced transverse to the length into two equal parts then the pole strength remains unchanged and the length is reduced to half. So option 1 is correct.