Question

In a parallel circuit, ET = 120 V, R = 30 Ω, and XL = 60 Ω. What is the phase angle (angle theta)?

Answer 1

Phase angle (∅) in a parallel RL circuit is given by the formula; tan∅
`= (I_(L) )/(I_(L))`

where
`I_(L)` is current through the inductor and given by
`I_(L) = (voltage)/(X_(L))`

and
`I_(R)` is current through the resistor and given by
`I_(R) = (voltage)/(R)`

hence, tan∅
`= 30/60` or ∅ = 26.565 degree