4 major effects of inserting a dielectric slab inside a parallel plate capacitor

 

(i) Electric filed DECREASES by a factor K

Enew = Eold/K 

(ii) Capacitance INCREASES by a factor K

Cnew = KCold

(iii)

Voltage DECREASES by a factor K

Vnew = Vold/K

(iv) 

PERMITIVITY of capacitor INCREASES by a factor K

ε = Kε₀