Start Free Mock LoginAlready registered? Login here

Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismMagnetic Dipole & MomentEasy2 minPYQ_2020

PhysicsEasysingle choice

A magnetic needle lying parallel to a magnetic field required $W$ units of work to turn it through $60 °$ . The torque required to maintain the needle in this position will be

Options:

Answer:

Solution:

$W = B M c o s 60 ° = \frac{M B}{2}; M B = 2 W$

$τ = M B s i n θ = (2 W) s i n 60 ° = 2 W \frac{\sqrt{3}}{2} = W \sqrt{3}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:MagnetismSubtopic:Magnetic Dipole & Moment

⏱ 2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...