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To see how a changing electric field gives rise to a magnetic field, let us consider the process of charging of a capacitor and apply amperes circuital law given by chapter 4 b. Apr 22, 2019 national council of educational research and training ncert book for class xii subject. These are the electromagnetic waves class 12 notes prepared by team of expert teachers. The variation of electric and magnetic fields, perpendicular to each other, producing electromagnetic disturbance in space at right angles. In vacuum, all electromagnetic waves have the same speed c, whose value is. Ncert solutions class 12 physics electromagnetic waves.
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