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PhysicsEMI/ACAC current and voltageMedium2 minPYQ_2021

PhysicsMediumsingle choice

An $A C$ current is given by $I = I_{1} s i n ω t + I_{2} c o s ω t .$
A hot wire ammeter will give a reading:

Answer:

Solution:

$I = I_{1} s i n ω t + I_{2} c o s ω t$

$∴ I_{0} = \sqrt{I_{1}^{2} + I_{2}^{2}}$

$∴ I_{r m s} = \frac{I_{0}}{\sqrt{2}} = \sqrt{\frac{I_{1}^{2} + I_{2}^{2}}{2}}$

Stream:JEESubject:PhysicsTopic:EMI/ACSubtopic:AC current and voltage

⏱ 2mℹ️ Source: PYQ_2021

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