A circuit contains only a(n) 0.219 H inductor. An AC voltage of peak value 163 V and
frequency 61.3 Hz is applied to the circuit. When the instantaneous voltage is 163 V, what is the
instantaneous AC current?
Answer in units of A
Solution
V = Vo sin (2ft) ; f = frequency
= 163 sin (385t)
XL = j L = j 2fL = 84.31 j
I = V/X
= .31 = 1.9334 A ; lagging by 90o
frequency 61.3 Hz is applied to the circuit. When the instantaneous voltage is 163 V, what is the
instantaneous AC current?
Answer in units of A
Solution
V = Vo sin (2ft) ; f = frequency
= 163 sin (385t)
XL = j L = j 2fL = 84.31 j
I = V/X
= .31 = 1.9334 A ; lagging by 90o
