The accelerating voltage in the cathode ray tube is Ua = 1.5 kV, the distance from the deflecting plates to the screen is L = 30 cm. By what distance will the spot on the oscilloscope screen shift when voltage Uy = 20 V is applied to the deflecting plates? The distance between the plates is d=0.5 cm, the length of the plates is l=2.5 cm.
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