Question

What is polarisation?

Options

• The process by which dielectric molecules develop induced dipole moments in an external electric field

• The process by which a dielectric’s bound charges move freely through the material

• The process by which a capacitor’s plate area increases

• The process by which vacuum permittivity becomes zero

Answer 1

Polarisation is the development of induced dipole moments in dielectric molecules under an external electric field. The induced dipoles align to create an opposing induced field.