A capacitor ‘C’, a variable resistor ‘R’ and a bulb ‘B’ are connected in series to the ac mains in circuit s
as shown. The bulb glows with some brightness, How will the glow of the bulb change if (i) a
dielectric slab is introduced between the plates of the capacitor, keeping resistance R to be the same; (ii) the resistnace R is increased keeping the same capacitance ?
