A moving coil galvanometer has a 50-turn coil of size `2cm xx 2cm`. It is suspended between the magnetic poles producing a magnetic field of `0.5 T`. Find the torque on the coil due to the magnetic field when a current of `20mA` passes through it.

Explanation

To find the torque on the coil of a moving coil galvanometer due to the magnetic field, we can use the formula for torque (τ) acting on a current-carrying coil in a magnetic field:

\[ \tau = n \cdot I \cdot A \cdot B \cdot \sin(\theta) \]

Where:
- \( n \) = number of turns in the coil
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