A small LED lamp uses 16W of electrical power when in operation, and converts 35% of it into visible light. Assuming that it radiates light equally in all directions, calculate the rms value of the magnetic field strength of the light such lamp produces across the room, a distance of 2.5m away from its location.
A small LED lamp uses 16W of electrical power when in operation, and converts 35% of it into visible light. Assuming that it radiates light equally in all directions, calculate the rms value of the magnetic field strength of the light such lamp produces across the room, a distance of 2.5m away from its location.
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Transcribed Image Text:A small LED lamp uses 16W of electrical power when in operation, and converts 35% of it into visible
light. Assuming that it radiates light equally in all directions, calculate the rms value of the magnetic field
strength of the light such lamp produces across the room, a distance of 2.5m away from its location.
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