The displacement current due to time varying electric field is given by:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → $ε_0\frac{dφ_E}{dt}$
The displacement current $(I_d)$ due to time carrying electric field is,
$I_d=ε_0\frac{d\phi_E}{dt}$
where,
$ε_0$ = Permittivity of free space.
$\frac{d\phi_E}{dt}$ = Rate of change of electric flux.