JEE Main 202117 Mar, Evening shiftPhysicsHardElectromagnetic Waves120× since 2002
Seawater at a frequency f = 9 10² Hz, has permittivity = 80₀ and resistivity = 0.25 m. Imagine a parallel plate capacitor is immersed in seawater and is driven by an alternating voltage source V(t) = V₀ sin(2ft). Then the conduction current density becomes 10^x times the displacement current density after time t = s. The value of x is _____________. (Given : Nm²C^2)