MHT CET · Physics · Alternating Current
The instantaneous value of an \(\mathrm{AC}\) is given by \(I=5 \sin (\omega t+\phi)\) amp. The rms value of current is
- A \(5 \mathrm{~A}\)
- B \(\frac{5}{\sqrt{2}} \mathrm{~A}\)
- C \(5 \sqrt{2} \mathrm{~A}\)
- D \(2.5 \mathrm{~A}\)
Answer & Solution
Correct Answer
(B) \(\frac{5}{\sqrt{2}} \mathrm{~A}\)
Step-by-step Solution
Detailed explanation
We know that, \(I_{\mathrm{rms}}=\frac{I_{0}}{\sqrt{2}}\)
In the given equation, peak value of current \(\left(I_{0}\right)=5\)
\(I_{\mathrm{rms}}=\frac{5}{\sqrt{2}} \mathrm{~A}\)
In the given equation, peak value of current \(\left(I_{0}\right)=5\)
\(I_{\mathrm{rms}}=\frac{5}{\sqrt{2}} \mathrm{~A}\)
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