A series R-C circuit is connected to an alternating voltage source. Consider two situations: <br> (a) When capacitor is air filled. <br> (b) When capacitor is mica filled. <br> Current through resistor is i and voltage across capacitor is V then :

Question

( A ) $V_a < V_b$
( B ) $V_a = V_b$
( C ) $i_a > i_b$
( D ) $V_a > V_b$