question_answer 34)

  To reduce the ripples in rectifier circuit with capacitor filter (a) RL should be increased (b) input frequency should be decreased (c) input frequency should be increased (d) capacitors with high capacitance should be  used

Answer:

  (a,c,d) Ripple factor (r) of a full wave rectifier using capacitor filter is given by ,  and  r . Thus to reduce r, RL should be increased, input frequency v should be increased and capacitance C should be increased. Thus, options (a, c, a) are correct.