List of top Physics Questions on Electric field and potential due to point

The Young's double slit interference experiment is performed using light consisting of \(480\ \text{nm}\) and \(600\ \text{nm}\) wavelengths to form interference patterns. The least number of the bright fringes of \(480\ \text{nm}\) light that are required for the first coincidence with the bright fringes formed by \(600\ \text{nm}\) light is:

Two-point charges, $q_1 = 36\ \mu\text{C}$ and $q_2 = -9\ \mu\text{C}$ are placed at a distance of $30\text{ cm}$. What distance from $q_1$, where the net electric field is zero, will be:

A conducting sphere of radius R is given a charge Q. What is the electric field and the electric potential at the centre of the sphere?

A \(ẞ\)-particle is moving perpendicular to the uniform electric field created by a potential difference of \(6 × 10^3\) V across parallel metal plates separated by a vertical distance of 6 cm. What is the acceleration of the beta particle between the plates? (Mass of electron = \(9.1 × 10^{-31}\)kg) 

\(\frac{\text{Force} \times \text{Length}}{\text{Charge}}=\)which quantity ?

A current through a conductor is 2A, when there is a potential difference of 10V between its ends. Its resistance is

Which of the following relation is correct regarding potential difference (V)?