A galvanometer has a coil of resistance `100(Omega)` showing a full-scale deflection at 50(mu)A. What resistance should be added to use it as (a) a voltmeter of range 50 V (b) an ammeter of range 10 mA?

Explanation

To solve the problem, we need to determine the additional resistance required to use the galvanometer as a voltmeter and as an ammeter.

### Given:
- Resistance of galvanometer coil, \( R_g = 100 \, \Omega \)
- Full-scale deflection current, \( I_g = 50 \, \mu A = 50 \times 10^{-6} \, A \)

### (a) To use it as a voltmeter of range 50 V:

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