Same chapter3 marksDifficulty: Medium
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3 marksDifficulty: Medium
How is a galvanometer converted into an ammeter and into a voltmeter?
Original Khojo Papers practice question — not from a past board paper.
Answer
A galvanometer is converted into an ammeter by connecting a low resistance, a shunt, in parallel with it, so most of the current bypasses the coil and the instrument has a very low resistance. It is converted into a voltmeter by connecting a high resistance in series, so the instrument draws very little current and has a very high resistance.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
An ideal ammeter has zero resistance and an ideal voltmeter infinite resistance.
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