An electron is revolving round a proton,...

An electron is revolving round a proton, producing a magnetic field of `16 weber//m^(2)` in a circular orbit of radius `1 Å. Its angular velocity will be

`10^(17)` rad/sec

`1//2pixx10^(12)` rad/sec

`2pi xx 10^(12)` rad/sec

`4pi xx 10^(12)` rad/sec

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