A coil has an inductance of 2 H and resistance of 4 . A 10 V is applied across the coil. The energy stored in the magnetic field after the current has built up to its equilibrium value will be_____x…

Question

A coil has an inductance of 2 H and resistance of 4 . A 10 V is applied across the coil. The energy stored in the magnetic field after the current has built up to its equilibrium value will be_____x 10-2 J

Accepted Answer

Correct answer: 625. (625) The data given is L = 2H R = 4 V = 10 V Using Ohm's law, V = IR, I= 10V4 = 52A The energy of an inductor is given by E= 12LI^2= 12 2 ( 254 )=625 10^-2J

$A coil has an inductance of 2 H and resistance of 4 Ω . A 10 V is applied across the coil. The energy stored in the magnetic field after the current has built up to its equilibrium value will be_____x 10-2 J$

Solution

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