An inductor with L = 9.30 mH is connected across an ac source that has voltage amplitude 50.0 V .
Part A What is the phase angle ϕ for the source voltage relative to the current? Express your answer in degrees. Activate to select the appropriates template from the following choices. Operate up and down arrow for selection and press enter to choose the input value typeActivate to select the appropriates symbol from the following choices. Operate up and down arrow for selection and press enter to choose the input value type ϕ = nothing ∘ Request Answer Part B Complete previous part(s) Part C What value for the frequency of the source results in a current amplitude of 4.50 A ?