Monday, 27 August 2018

1:38 PM

Machine generated alternative text: • Passive sign convention applies to inductors as well. If v x i > O, the inductor is being charged (absorbing energy). If v x i < O, the inductor is discharging (supplying energy). • The inductor's voltage v is proportional to the rate of change of its current i, with inductance L as the constant of proportionality, assuming passive sign convention. di • Current will then be: 1 i(t) = dt + i(to) to where i(to) is called the initial current or initial conditions at time to.

 

Machine generated alternative text: • Instantaneous power delivered to the inductor: di p = vi = Li— dt • The energy stored in the magnetic field that exists around the coil and wires of the can be then calculated as: w(t) = t di(T) 1 w(t) = —L(i(t)2 — 2 2 1 If i(to) = w(t) = 2

 

 

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