List of top Physics Questions on Electrostatics asked in AP EAMCET

If four charges \( q_1 = +1 \times 10^{-8} C \), \( q_2 = -2 \times 10^{-8} C \), \( q_3 = +3 \times 10^{-8} C \), and \( q_4 = +2 \times 10^{-8} C \) are kept at the four corners of a square of side 1 m, then the electric potential at the centre of the square is:
Two charges \(5\) nC and \(-2\) nC are placed at points \( (5,0,0) \) and \( (23,0,0) \) in a region of space where there is no other external field. The electrostatic potential energy of this charge system is:
Two particles of charges 4 nC and \( Q \) are kept in air with a separation of 10 cm between them. If the electrostatic potential energy of the system is 1.8 μJ, then \( Q \) is:
In a region, the electric field is \( (30\hat{i} + 40\hat{j}) \) NC\(^{-1}\). If the electric potential at the origin is zero, the electric potential at the point (1 m, 2 m) is
125 identical charged small spheres coalesce to form a big charged sphere. If the electric potential on each small sphere is 60 mV, then the electric potential on the bigger sphere formed is:
The magnitude of an electric field which can just suspend a deuteron of mass \( 3.2 \times 10^{-27} \) kg freely in air is:

Two particles of equal mass \( m \) and equal charge \( q \) are separated by a distance of 16 cm. They do not experience any force. The value of \( \frac{q}{m} \) is                (if \( G \) is the universal gravitational constant and \( g \) is the acceleration due to gravity).

Four condensers each of capacitance 8 muF are joined as shown in the figure. The equivalent capacitance between the points A and B will be
 

Two point charges +6 \(\mu\)C and +10 \(\mu\)C kept at a certain distance repel each other with a force of 30 N. If each charge is given an additional charge of -8 \(\mu\)C, the two charges
A particle of mass 0.5 g and charge 10 \(\mu\)C is subjected to a uniform electric field of 8 NC\(^{-1}\). If the particle is initially at rest, the velocity of the particle after a time of 5 seconds is
Electrostatic force between two identical charges placed in vacuum at distance \(r\) is \(F\). A slab of width \(\dfrac{r}{5}\) and dielectric constant \(9\) is inserted between these two charges, then the force between the charges is