A particle carrying charge is equals to hundred times the charge of an electron per second is rotating in a circular path of the radius 0.8 metre find the magnetic field at the centre .
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Explanation:
Current produce by this rotating charge is
I=100e/s
Magnetic field at centre
B=mu×i/2R
=4π×10^-7×100×1.6×10^-19/2×0.8
=4π×10^-24tesla
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