Phase Angle In Lcr Series Circuit — the NEET Physics formula with its derivation, variables, validity constraints and worked solver.
Phase Angle in LCR Series Circuit Applicable to series LCR circuits driven by an alternating voltage source. Draw the phasor diagram for voltage in a series LCR circuit Identify the vertical component as (V L - V C) and the horizontal component as V R Use the definition of tangent in the right-angled phasor triangle: tan(phi) = (V L - V C) / V R Substitute V=IX to cancel current I from numerator and denominator Assumes components are in series The resistance R must be non-zero to avoid singularity Reactance values must be calculated for the specific drive frequency Thinking phase angle depends on voltage magnitude instead of the ratio of reactances to resistance Ignoring the sign: positive phi means voltage leads (inductive), negative phi means voltage lags (capacitive)