If the instantaneous current in a circuit is given by 2 cos(t) ampere, the rms value of the current is :

2 A

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\sqrt{2} A

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

2 \sqrt{2} A

No worries! We‘ve got your back. Try BYJU‘S free classes today!

z e r o

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B $\sqrt{2} A$
$i = 2 c o s t$
$= I_{m} c o s t$
So, $I_{m} = 2$ amp
$I_{R M S} = \frac{I_{m}}{\sqrt{2}}$
$= \frac{2}{\sqrt{2}}$
$= \sqrt{2}$ amp

Suggest Corrections

Similar questions

I = 2 c o s (ω t + φ)

I = 3 s i n ω t + 4 c o s ω t

2 A

\sqrt{3} A

I = 2 cos (ω t + θ)

\frac{1}{300}

Join BYJU'S Learning Program