1.

An electron gun emits 2.0 x 1016 electrons per second. What electric current does this correspond to?

Answer»

No. of electrons per second = 2 x1016 electrons / sec.
Charge passing per second = 2 x1016 x 1.6 x 10–19 coulomb/sec
= 3.2x 10–3 Coulomb/sec
Current = 3.2x10–3 A.

2×10¹⁶electron/sec

2×10¹⁶×1.6×10-¹⁹ coulomb/sec

3.2×10-³ coulomb/sec

3.2×10-³ampere


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