- [Medium]A charge Q is placed at the center of a cube. What is the electric flux through one face of the cube?...
- [Easy]Two capacitors of 4 μF and 6 μF are connected in series. What is the equivalent capacitance?...
- [Medium]An electric dipole consists of charges +q and -q separated by distance 2a. What is the electric field at a point on the axial line at distance r from ...
- [Easy]Two point charges of +3 μC and +5 μC are separated by a distance of 0.3 m in air. What is the magnitude of the force between them? (k = 9 × 10⁹ N·m²/C...
- [Easy]Three capacitors of 2 μF, 3 μF, and 5 μF are connected in parallel. What is the equivalent capacitance?...
- [Easy]What is the electric potential at a distance of 0.3 m from a point charge of +6 nC? (k = 9 × 10⁹ N·m²/C²)...
- [Easy]What is the work done in moving a charge on an equipotential surface?...
- [Easy]A point charge of +2 μC creates an electric field. What is the magnitude of the field at a distance of 0.1 m from the charge? (k = 9 × 10⁹ N·m²/C²)...
- [Medium]A parallel plate capacitor has plates of area 0.02 m² separated by 1 mm in air. What is its capacitance? (ε₀ = 8.85 × 10⁻¹² F/m)...
- [Medium]Work to move charge q between two points at same potential is:...
- [Medium]Inside a charged conductor electrostatic field is:...
- [Medium]Energy density in electric field is (in vacuum):...
- [Hard]Inserting dielectric (K>1) fully into isolated charged capacitor (battery disconnected) causes potential difference to:...
- [Hard]Field at center of uniformly charged ring is:...
- [Easy]Potential energy of two point charges q and q separated by r is:...
- [Easy]Electrostatic force between two point charges q1, q2 distance r apart is proportional to:...
- [Hard]Two capacitors C and 2C in series net capacitance is:...
- [Easy]Potential difference between plates separated by d in uniform field E is:...
- [Easy]Capacitance C defined as:...
- [Medium]Electric field lines intersect equipotential surfaces at:...
- [Easy]Gauss's law relates flux through closed surface to:...
- [Easy]Electric field at a point is defined as force per unit:...
- [Easy]Energy stored in capacitor is:...
- [Easy]Potential at distance r from point charge q (zero at infinity) is:...
- [Easy]The electric potential at the centre of a charged hollow metal sphere is:...
- [Easy]A charge q is placed at the center of a cube of side a. The electric flux passing through one face of the cube is:...
- [Medium]Two point charges +q and -4q are placed at x=0 and x=L respectively. At what point on the x-axis is the electric field zero?...
- [Medium]A parallel plate capacitor has capacitance C. If a dielectric slab of dielectric constant K is inserted filling half the space between plates parallel...