Calculate the effective capacitance between $\mathrm{a}$ and $\mathrm{b}$ from the figure given below:

${\mathrm{C}}_1={\mathrm{C}}_3=100 \mathrm{\mu F}, {\mathrm{C}}_2={\mathrm{C}}_4=200 \mathrm{\mu F}$

The equipotential surface through a point is normal to the electric field at that point.

What is meant by equipotential surface?

The equipotential surface through a point is normal to the electric field at that point.

What is the work done to move a charge on an equipotential surface?

The equipotential surface through a point is normal to the electric field at that point.

Draw the equipotential surfaces for a uniform electric field.

Three capacitors of capacitances $2 \mathrm{pF}, 3 \mathrm{pF} \mathrm{and} 4 \mathrm{pF}$ are connected in parallel.

$\left(\mathrm{a}\right)$ Write the SI unit of capacitance.

Three capacitors of capacitances $2 \mathrm{pF}, 3 \mathrm{pF} \mathrm{and} 4 \mathrm{pF}$ are connected in parallel.

$\left(\mathrm{b}\right)$ Calculate the effective capacitance of the combination.

Three capacitors of capacitances $2 \mathrm{pF}, 3 \mathrm{pF} \mathrm{and} 4 \mathrm{pF}$ are connected in parallel.

$\left(\mathrm{c}\right)$ Determine the charge on each capacitor if the combination is connected to a $100 \mathrm{V}$ supply.