Start Free Mock LoginAlready registered? Login here

Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismProperties of magnetEasy2 minPYQ_2020

PhysicsEasysingle choice

When a bar magnet is placed at $90^{o}$ to uniform magnetic field, it is acted upon by a couple which is maximum. For the couple to be half of the maximum value, it is to be inclined to the magnetic field at an angle is

Options:

Answer:

Solution:

When bar magnet is palced in external magnetic field it experiences torque.

$τ = M B \sin θ$

$τ_{m a x} = M B$

$τ = \frac{M B}{2}$

$\Rightarrow S i n θ = \frac{1}{2}$

$θ = 30 °$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:MagnetismSubtopic:Properties of magnet

⏱ 2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...