A millivoltmeter of 25 mV range is to be converted into an ammeter of 25 A range. The value (in ohm) of necessary shunt will be

Question

A millivoltmeter of 25 mV range is to be converted into an ammeter of 25 A range. The value (in ohm) of necessary shunt will be, 0 . 001, 0 . 01, 1, 0 . 05

MARKS App · Accepted Answer

Galvanometer is converted into ammeter, by connecting a shunt, in parallel with it. G S G + S = V G I = 25 × 10 − 3 25 G S G + S = 0.001 Ω Here S ≪ G so S = 0.001 Ω

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