State scientists research about electricity and magnetism after Oersted’s observation.
State scientists research about electricity and magnetism after Oersted’s observation.
After Oersted's observation, scientists has done below research.
In $1864$ , the laws obeyed by electricity and magnetism were unified and formulated by James Maxwell who then realised that light was electromagnetic waves.
Radio waves were discovered by Hertz and produced by $J$. $C$. Bose and $G$. Marconi by the end of the $19^{\text {th }}$ century.
A remarkable scientific and technological progress has taken place in the $20^{\text {th }}$ century, this is due to our increased understanding of electromagnetism and the invention of devices for production, amplification, transmission and detection of electromagnetic waves.
Similar Questions
A particle carrying a charge equal to $100$ times the charge on an electron is rotating per second in a circular path of radius $0.8$ $metre$. The value of the magnetic field produced at the centre will be $({\mu _0} = $ permeability for vacuum)
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- [JEE MAIN 2014]
Magnetic field due to a ring having $n$ turns at a distance $x$ on its axis is proportional to (if $r$ = radius of ring)
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