What is the unit of amplitude of magnetic field?
In electromagnetic waves, the amplitude is the maximum field strength of the electric and magnetic fields. (See Figure 1.) where c is the speed of light, ε0 is the permittivity of free space, and E0 is the maximum electric field strength; intensity, as always, is power per unit area (here in W/m2).
What is the amplitude of the electric field of this electromagnetic wave?
1V/m.
In an electromagnetic wave, the amplitude of electric field is 1V/m.
What is the formula of electric magnetic field?
For a wire exposed to a magnetic field,F=IlBsinθ F = IlB sin describes the relationship between magnetic force (F), current (I), length of wire (l), magnetic field (B), and angle between field and wire (θ). The direction of the magnetic force can be determined using the right hand rule, as in fig [[17951]].
What is the relationship between intensity and amplitude of magnetic field?
In Physics, the relation between amplitude and intensity is that the intensity of the wave is directly proportional to the square of its amplitude.
What is the amplitude of the oscillating electric field?
The amplitude of the oscillating magnetic field is 1331.1 V/m.
What is the ratio of amplitude of magnetic field to the amplitude of electric field for an electromagnetic wave propagating in vacuum?
reciprocal of speed of light
Therefore, the ratio of amplitude of magnetic field to the amplitude of electric field for an electromagnetic wave propagating in vacuum is equal to reciprocal of speed of light.
What is the relation between intensity and amplitude of the electromagnetic wave?
Is amplitude and intensity same?
Students may be confused between amplitude and intensity. While sound intensity is proportional to amplitude, they are different physical quantities. Sound intensity is defined as the sound power per unit area, whereas amplitude is the distance between the resting position and the crest of a wave.
What is the value of Mu naught?
Vacuum permeability. The physical constant μ0, (pronounced “mu naught” or “mu zero”), commonly called the vacuum permeability, permeability of free space, permeability of vacuum, or magnetic constant, is an ideal, (baseline) physical constant, which is the value of magnetic permeability in a classical vacuum.
What is the equation for magnetic field strength?
In the centimeter–gram–second system magnetic field strength is determined using a different formula: Н = B — 4×π×М. Magnetic field strength is measured in amperes per meter (A/m), while in the centimeter–gram–second system it is measured in oersteds (Oe).
Where do electromagnetic waves transfer energy?
Mechanical waves transfer energy by inducing vibrations in the propagation medium. Electromagnetic waves do not require a medium for propagation, but still transfer energy by having an electric and magnetic field propagate perpendicular to one another.
What is the amplitude of an electromagnetic wave?
Amplitude. The amplitude of electromagnetic waves relates to its intensity or brightness (as in the case of visible light). With visible light, the brightness is usually measured in lumens. With other wavelengths the intensity of the radiation, which is power per unit area or watts per square meter is used.