JEE Main 2024 Physics question
An AC voltage V = 20 sin 200πt is applied to a series LCR circuit which drives a current I = 10 sin(200πt + π/3). The average power dissipated is
Answer: (A)
Solution
P = cosφ = (20/√2)(10/√2)cos(π/3) = 100 × ½ = 50 W.