Question
Hard
Solving time: 5 mins
Q.104. An oscillating circuit consists of a capacitor with capacitance C = 4.0 μF and a coil with inductance L = 2.0 mH and active resistance R = 10Ω. Find the ratio of the energy of the coil's magnetic field to that of the capacitor's electric field at the moment when the current has the maximum value.
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Text solutionVerified
charge on the capacitor
Then,
Thus,
Current is maximum when
Thus,
or,
i.e., and hence
(WM is the magnetic energy of the inductance coil and WE is the electric energy of t capacitor.)
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Question Text | Q.104. An oscillating circuit consists of a capacitor with capacitance C = 4.0 μF and a coil with inductance L = 2.0 mH and active resistance R = 10Ω. Find the ratio of the energy of the coil's magnetic field to that of the capacitor's electric field at the moment when the current has the maximum value. |
Topic | Electromagnetic Induction |
Subject | Physics |
Class | Class 12 |
Answer Type | Text solution:1 |
Upvotes | 87 |