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Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACSeries AC CircuitsEasy2 minPYQ_2020

PhysicsEasysingle choice

In an oscillating $LC$ circuit the maximum charge on the capacitor is $Q$ . The charge on the capacitor when the energy is stored equally between the electric and magnetic field is

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Answer:

Solution:

Let $Q$ denote maximum charge on the capacitor.

Let $q$ denote charge when energy is equally shared

$∴$ $\frac{1}{2} (\frac{1}{2} \frac{Q^{2}}{C}) = \frac{1}{2} \frac{q^{2}}{C} \Rightarrow Q^{2} = 2 q^{2}$

$∴$ $q = \frac{Q}{\sqrt{2}}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:EMI/ACSubtopic:Series AC Circuits

⏱ 2mℹ️ Source: PYQ_2020

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