Question

Derive the formula for phase difference in
LCR series circuit.​

Answer 1

Answer:

The phase difference (ϕ) between current and voltage ϕ is given by tanϕ = (XC - XL)/R The graph of variation of peak current im with frequency is shown in fig. With increase in frequency, current first increases and then decreases. At resonant frequency, the current amplitude is maximum.

Answer 2

Answer:

The phase difference (ϕ) between current and voltage ϕ is given by tanϕ = (XC - XL)/R The graph of variation of peak current im with frequency is shown in fig. With increase in frequency, current first increases and then decreases. At resonant frequency, the current amplitude is maximum.