Inductance Flashcards
is a passive element designed to store energy in its magnetic field.
inductor
consists of a coil of conducting wire
inductor
It is found that the voltage across the inductor is directly proportional to the time rate of change of the current.
v = L (di/dt)
is the property whereby an inductor exhibits opposition
to the change of current flowing through it
Inductance
unit of inductance
henrys (H)
Formula of inductance
L = (N^2 μA) / l
Formula for the current-voltage relationship of the inductors
i = 1/L ∫ v(T)dT + i(t0)
lower limit and upper limit of t
Formula for the voltage-current relation of the inductor
v = L (di/dt)
Formula for the instantaneous power delivered to the inductor
p = vi = L (di/dt) i
Formula for the energy stored in inductor
w = 1/2 (Li^2)
The equivalent inductance of _____ is the sum
of the individual inductances
series-connected inductors
Formula of series-connected inductors
L eq = L1+ L2 + L3 + … + Ln
The equivalent inductance of _____ is the reciprocal of the sum of the reciprocals of the individual inductances.
parallel inductors
Formula of parallel inductors
1/L eq = 1/L1+ 1/L2 + 1/L3 + … + 1/Ln