The coil of a galvanometer is `0.02xx0.8 m^2`. It consists of 200 turns of the wire and is in a magnetic field of 0.20 T. The restoring torque constant of suspension fibre is `10^(-5) Nm//degree.` Assuming magnetic field to be radial
(a) What is the maximum current that can be measured by this galvanometer if scale can accommodate `45^@` deflection?
(b) What is the smallest current that can be detected if minimum observed deflection is `0.1^@`?

Explanation

To solve the problem, we need to calculate the maximum and minimum currents that can be measured by the galvanometer based on the given parameters.

### Given Data:
- Area of the coil, \( A = 0.02 \, \text{m}^2 \)
- Number of turns, \( N = 200 \)
- Magnetic field strength, \( B = 0.20 \, \text{T} \)
- Restoring torque constant, \( C = 10^{-5} \, \text{Nm/degree} \)
- Maximum deflection, \( \theta_{\text{max}} = 45^\circ \)
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