Question

What is Series Resonant Circuit?

Answer

Series Resonant Circuit - (i) X_L = X_C ⇒ Z_min = R, i.e. circuit behaves as resistive circuit. (ii) V_L = V_C ⇒ V = V_R, i.e. whole applied voltage appeared across the resistance. (iii) Phase difference, Փ = 0° ⇒ Power Factor = cosՓ = 1 (iv) Power consumption, P = V_rms I_rms = 1/2V₀I₀ (v) Current amplitude in the circuit is maximum and it is given by, I₀ = V₀/R (vi) This circuit is used for voltage amplification and as selector circuits in wireless telegraphy.