The magnetic field in a plane electromagnetic wave is given by B y = 2 × 10 - 7 T sin 0 . 5 × 10 3 z - 1 . 5 × 10 11 t Write the expression for the electric field. c = 3 × 10 8 ms - 1

Wave is propagating along positive X -axis; magnetic field is directed along z-axis so electric field must be directed along k ^ × i ^ = j ^ , along Y-axis. Amplitude of electric field E 0 = B 0 c = 2 × 10 - 7 × 3 × 10 8 = 60 V m - 1

The magnetic field in a plane electromagnetic wave is given by B y = 2 × 10 - 7 T sin 0 . 5 × 10 3 z - 1 . 5 × 10 11 t Write the expression for the electric field. c = 3 × 10 8 ms - 1

Wave is propagating along positive X -axis; magnetic field is directed along z-axis so electric field must be directed along k ^ × i ^ = j ^ , along Y-axis. Amplitude of electric field E 0 = B 0 c = 2 × 10 - 7 × 3 × 10 8 = 60 V m - 1

What is displacement current and write the modified Ampere's circuital law.

The displacement current. The calculation of the magnetic field of a current distribution can, in principle, be carried out using Ampere's law which relates the path integral of the magnetic field around a closed path to the current intercepted by an arbitrary surface that spans this path:

The electric field vector of a plane electromagnetic wave oscillates sinusoidally at a frequency of 300 MHz . What is its wavelength?

The wavelength is given by λ = c v = 3 × 10 8 300 × 10 6 = 1 m

Arrange the given four electromagnetic waves in ascending order of their wavelengths. 1 . Light ray 2 . γ - ray 3 . Ultraviolet ray 4 . X - ray

Electromagnetic waves in ascending order of their wavelengths are-: gamma rays(), X-rays, ultraviolet radiation, visible light(Light ray) .

Name the part of electromagnetic waves which is used in radiography?

Electromagnetic waves are produced due to accelerating charge particle. Electromagnetic wave spectrum consists of Gamma rays, x-rays, U V rays, visible light, Microwave, infrared and radio waves.