Find an expression for the minimum potential difference v

Reference no: EM13631739

A magnetron has a central cathode with radius a surrounded by an anode with inner radius b, and an axial, uniform magnetic field B. Assume electrons are emitted from the surface of the cathode with negligible velocity. Find an expression for the minimum potential difference V between the cathode and anode for electrons to reach the anode?

Reference no: EM13631739

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