SemiconductorHard

Question

Communication on ground is through electromagnetic waves of wavelength

Options

A.larger than 600 m
B.between 200 and 600 m
C.between 1 and 5
D.between103 and 0.1

Solution

The required wavelength should be from 10-3 m to 0.1m.
⇒ Ie = × 10 mA ; 11.1mA

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