1.

The instantaneous current in an AC circuit is l = `sqrt 2`sin(50 t + `pi` / 4 ) . The rms value of current isA. `sqrt 2`AB. 50 AC. 90 AD. 1A

Answer» Correct Answer - D
`underset(rms)(I)` = `underset(o)(I)`/ `sqrt 2` = `sqrt 2`/`sqrt 2` = 1A


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