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The coil of a galvanometer is 0.02xx0.8 ...

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^@`?

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