Find the values of the phase difference between the current and the voltage in the series LCR circuit shown below, which one leads in phase: current or voltage?

Explanation

Calculatioin of phase difference between curren and voltage Name of quantity which leads.
`X_(L)=omegaL=(1000xx100xx10^(-3))Omega=100Omega`
`X_(c)=1/(omegaC)=(1/(1000xx2xx10^(6)))Omega=5000 Omega1`
Phase angle
`tan varphi=(X_(L)xxX_(C))/R`
`tanvarphi=(100-500)/400=-1`
`vaphi=-(pi)/4`
As `X_(C)gtX_(L)` (phase angle is negative) hence current leads voltage.