Write the expression for the effective capacitance of two capacitors connected in parallel.

Write down the expression for capacitative reactance of a capacitor.

Write down the expression for the capacitance of a spherical capacitor?

Resistance are used to reduce the current flow in a circuit. Resistance can be connected in series and parallel to obtain the required value of resistance. Derive an expression for the effective resistance when three resistors are connected in parallel.

Obtain the expression for effective capacitance, when three capacitors C_1 , C_2 and C_3 are connected in series.

You are given 3 capacitors of capacities 3 muf , 2 muf , 1 µf You have to make a capacitors of capaci- tance less than 1 muf : Write an expression for effective capacitance of the above combination and verify the result

Obtain an expression for capacitance of a paral lel plate capacitor

Three resistors R_1, R_2, R_3 are to be combined in parallel connection. Arrive at the expression for the effective resistance of parallel combination.