Assertion :- A dielectric slab is inserted between the plates of an isolated charged capacitor. The charge on the capacitor will remain the same.

Reason :- Charge on an isolated system is conserved.

Assertion : If three capacitors of capacitance $C_1<C_2<C_3$ are connected in parallel then their equivalent capacitance $C_p>C_s$

Reason : $\frac{1}{C_p}=\frac{1}{C_1}+\frac{1}{C_2}+\frac{1}{C_3}$

Assertion: The capacitance of a capacitor remains the same even if the charge is varied on it.

Reason: Capacitance depends upon nearly medium as well as size and shape of capacitor.

Assertion : The force with which one plate of a parallel plate capacitor is attracted towards the other plate is equal to square of surface density per $\epsilon$ per unit area

Reason : The electric field due to one charged plate of the capacitor at the location of the other is equal to surface density per $\epsilon$

Three capacitors, each of capacitance $C$ and of breakdown voltage $V$ are joined in series. The capacitance and breakdown voltage of the combination will be