Maxwell, in his equations of electromagnetism, introduced the concept of
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → displacement current
NCERT (2026-27):
Introduction – “… James Clerk Maxwell (1831-1879), argued that this was indeed the case – not only an electric current but also a time-varying electric field generates magnetic field. While applying the Ampere’s circuital law to find magnetic field at a point outside a capacitor connected to a time-varying current, Maxwell noticed an inconsistency in the Ampere’s circuital law. He suggested the existence of an additional current, called by him, the displacement current to remove this inconsistency.”