Task 31528.

An electron passing accelerating difference delta phi potential flies in the air condenser flat parallel plates of length L and departs from it. At that point, when an electron enters the condenser, the latter an electric field, the intensity of which varies with time according to E = at the law (where a = const). The vector E is perpendicular to the plane of the plates. To determine the rate at which electron emission from the condenser. The charge of an electron e, m its mass.
Detailed solution with a short recording conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
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