Electric fields part 2

The amplitude of the magnetic field part of a harmonic electromagnetic wave in vacuum is B_0=510 nT . What is the amplitude of the electric field part of the wave?

The amplitude of the magnetic field part of a harmonic electromagnetic wave in vacuum is B_0=510 nT . What is the amplitude of the electric field part of the wave?

The amplitude of the magnetic field part of a harmonic electromagnetic wave in vacuum is B_0=510 nT . What is the amplitude of the electric field part of the wave?

If the electric field and magnetic field of an electromagnetic wave are related as B= ( E)/( c) where the symbols have their usual meanings and the energy in a given volume of space due to the electric field part is U, then the energy due to the magnetic field part will be

The Electric field at a point is

The Electric field at a point is

The figure shows electric field lines. If E_(A) and E_(B) are electric fields at A and B and distance AB is r, then

Assetrion: Electric lines of force never cross each other. Reason: Electric field at a point superimpose to give one resultant electric field

Time varying magnetic filed is present in a circular region of radius R. Match the proper entries from column-2 to column-1 using the codes given below the columns, {:("Column I",,"Column II"),("(P) An unsteady magnetic field",,"(1) Electric field is perpendicular to the length of rod "),((Q) "Induced electric field at a point within magnetic field (r gtR)",,(2) r/2 (dB)/(dt)),("(R)Induced electric field at a point out side the magnetic field (r lt R)",,(3)(R^(2))/(2r)(dB)/(dt)),((S)"If a rod is placed along the diameter of the magnetic field",,"(4) induced electric field"):}

A thin conducting ring of radius R is given a charge +Q , Fig. The electric field at the center O of the ring due to the charge on the part AKB of the ring is E . The electric field at the center due to the charge on part ACDB of the ring is