A resistance of `20 Omega` is connected to a source of alternating current rated `110 V, 50 Hz`. Find (a) the `rms` current, (b) the maxium instantaneous current in the resistor and the time taken by the current to change from its maximum value to the rms value.A. `2.5 xx 10^(-3)sec`B. `2.5 xx 10^(-2) sec`C. `5 xx 10^(-3) sec`D. `25 xx 10^(-3) sec`

A resistance of `20 Omega` is connected to a source of alternating cur

1.	A resistance of `20 Omega` is connected to a source of alternating current rated `110 V, 50 Hz`. Find (a) the `rms` current, (b) the maxium instantaneous current in the resistor and the time taken by the current to change from its maximum value to the rms value.A. `2.5 xx 10^(-3)sec`B. `2.5 xx 10^(-2) sec`C. `5 xx 10^(-3) sec`D. `25 xx 10^(-3) sec`
Answer» Correct Answer - 1 `E = E_(0) cos omega t, i = i_(0) cos (2 pi ft)` but `i = (i_(0))/(sqrt(2))`

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