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A galvanometer has a resistance of 30 oh...

A galvanometer has a resistance of 30 ohm and a current of 2 mA is needed to give a full scale deflection. What is the resistance needed and how is it to be connected to convert this galvanometer
(a) Into an ammeter of 0.3 A range ?
(b) Into a volmeter of 0.2 V range ?

Text Solution

AI Generated Solution

To solve the problem of converting a galvanometer into an ammeter and a voltmeter, we will follow these steps: ### Given Data: - Resistance of galvanometer (Rg) = 30 ohms - Full-scale deflection current (Ig) = 2 mA = 2 × 10^(-3) A - Desired range for ammeter = 0.3 A - Desired range for voltmeter = 0.2 V ...
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