An electron in the beam of a TV picture tube is accelerated by a potential difference of
PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
An electron in the beam of a TV picture tube is accelerated by a potential difference of 2.00kV. It then passes through a region of transverse magnetic field, where it moves in a circular arc with radius 0.180m. What is the magnitude of the field?