A series LCR circuit consists of R =80 Ω, X_L =100 Ω, and X_C =40 Ω. The input voltage is 2500 cos (100 π t ) V. The amplitude of current, in the…

A series LCR circuit consists of $\displaystyle \mathrm{R}=80 \Omega, \mathrm{X}_{\mathrm{L}}=100 \Omega$, and $\displaystyle \mathrm{X}_{\mathrm{C}}=40 \Omega$. The input voltage is $\displaystyle 2500$ $\displaystyle \cos (100 \pi \mathrm{t}) \mathrm{V}$. The amplitude of current, in the circuit, is $\displaystyle \_\_\_\_$A.