A Parallel Plate Air Capacitor Has A Capacitance 18?F . If The Distance Between The Plates Is Tripled And A Dielectric Medium Is Introduced,
A parallel plate air capacitor has a capacitance 18μF . If the distance between the plates is tripled and a dielectric medium is introduced, the capacitance becomes 72μF . The dielec- tric constant of the medium is
(A) 4
(B) 12
(C) 9
(D) 2
asked Jul 10 12:00:00 AM