Question: An electron is accelerated from rest in a potential difference 15KV, then it enters in a chamber where it is subjected to a magnetic field

An electron is accelerated from rest in a potential difference 15KV, then it enters in a chamber where it is subjected to a magnetic field B, with its velocity perpendicular to B. If the radius of the electron circular motion is 0.0165m, the value of the magnetic field should be

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