A charge of is fixed at point A and a charge of at point B, 50 cm apart in air
PHYSICS · Multi-part · CBSE · Physics · Electric Charges and Fields · Electric Charges and Fields
Problem
A charge of +4μC is fixed at point A and a charge of −1μC at point B, 50 cm apart in air. The region from A up to 30 cm towards B is filled with a dielectric slab of relative permittivity 3, while the remaining space is air.
(i) Determine the position along line AB, measured from A, at which a unit positive test charge would experience zero net electrostatic force.
(ii) State whether this position lies inside the dielectric slab or in the air region.