Assertion :The bar magnet falling vertically along the axis of the horizontal coil will be having acceleration less than $g$ . Reason: Clockwise current induced in the coil.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Assertion is correct but Reason is incorrect

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Both Assertion and Reason are incorrect

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C Assertion is correct but Reason is incorrect
According to the Lenz's law, a reverse magnetic flux is induced in circuit when the external flux through a coil is varied with time. Hence when bar magnet falls through coil, the magnetic flux inside it increases with time in the downward direction. Hence an anticlockwise current is induced in coil to produce magnetic field in upward direction.
Due to this opposing flux, a retarding force acts on the magnet upwards and thus the acceleration is less than $g$ .

Suggest Corrections

Similar questions

H_{2}

H e

(1 + \frac{P b}{R T})

H_{2}

H e

Assertion: All the points (1, 0), (-1, 0), (2, 0) and (5, 0) lie on the x – axis.
Reason: Equation of the x-axis is y = 0

Choose the correct option.

Assertion: Be and Al have similar properties.

Reason: $B e^{2 +}$ and $A l^{3 +}$ have nearly the same charge/volume ratios and similar polarising power.

{2n}^{2}

Join BYJU'S Learning Program