Electrostatics

Charge Q is divided into two parts which are then kept some distance apart. The force

Charge Q is divided into two parts which are then kept some distance apart. The force between them will be…

An electric dipole of dipole moment p is aligned parallel to a uniform electric field E

An electric dipole of dipole moment p is aligned parallel to a uniform electric field E. The energy required to…

A sphere of 4cm radius is suspended with in a hollow sphere of 6cm radius. If the inner

A sphere of 4cm radius is suspended with in a hollow sphere of 6cm radius. If the inner sphere is…

A soap bubble is charged to a potential 12V. If its radius is doubled,

A soap bubble is charged to a potential 12V. If its radius is doubled, then the potential of the bubble…

A parallel plate capacitor as a uniform electric field E in the space between the plates

A parallel plate capacitor as a uniform electric field E in the space between the plates. If the distance between…

Two metallic spheres of radii 1 cm and 3 cm are given charges of -1 x 10⁻² C

Two metallic spheres of radii 1 cm and 3 cm are given charges of -1 x 10⁻² C and 5…

The concentric spheres of radii R and r have positive charges q₁ and q₂ with equal

The concentric spheres of radii R and r have positive charges q₁ and q₂ with equal surface charge densities. What…

A rod lies along the X-axis with one end at the origin and the other at x→∞. It carries

A rod lies along the X-axis with one end at the origin and the other at x→∞. It carries a…

The potential energy of particle in a force field is U = A/r² – b/r, where A and B

The potential energy of particle in a force field is U = A/r² - b/r, where A and B are…

Two metal spheres of radii 0.01m and 0.02m are given a charge of 15mC and 45mC

Two metal spheres of radii 0.01m and 0.02m are given a charge of 15mC and 45mC, respectively. They are then…