Question

The concept of displacement current solves an ambiguity in

• A. Gauss's law
• B. Faraday's law
• C. Ampere's law
• D. Coulomb's law

Answer 1

Answer: (C)

Maxwell modified Ampere's circuital law by introducing displacement current $\left(I_d\right)$, because, he find the ambiguity in Ampere's circuital law for conduction current during charging of a conducting.
Now, Ampere's circuital law was modified to
$\oint B\cdot dl={\mu }_0\left(I_c+I_d\right)$
where, $I_c=$ conduction current and
$I_d=$ displacement current