Question

If dielectric is inserted in charged capacitor (battery removed ), then quantity that remains constant is.

• A. Capacitance
• B. Charge
• C. Intensity
• D. Potential

Answer 1

Answer: (B)

Variation of different variables $(Q,C,V,E$ and $U)$ of parallel plate capacitor when dielectric $\left(K\right)$ is introduced when battery is removed is
$C^{\prime }=KC$ $E^{\prime }=E/K$
$Q^{\prime }=Q$ $U^{\prime }=U/K$
$V^{\prime }=V/K$