A fully charged capacitor C with initial charge q 0 is connected to a coil of self inductance L at t = 0 . The time at which the energy is stored equally between the electric and the magnetic field

Question

A fully charged capacitor C with initial charge q 0 ​ is connected to a coil of self inductance L at t = 0 . The time at which the energy is stored equally between the electric and the magnetic field is :

TestHub · Accepted Answer

Charge oscillates simple harmonic motion q = q 0 ​ sin ω t , U = 2 1 ​ C q 2 ​ ​ q = 2 ​ q 0 ​ ​ ⇒ ω t = 4 π ​ ⇒ t = 8 T ​ = 8 2 π ​ L C ​ = 4 π ​ L C ​ ​

Physics - EMI/AC Question with Solution | TestHub

Options:

Doubts & Discussion