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Find the minimum rate of sampling that must be used to convert the message into digital form:
(a) If an audio message has a spectral extent of 3 kHz.
(b) If a television signal has a spectral extent of 4.5 MHz.
Q. Explain the action of a pn-junction with bias. Consider both the forward bias and the reverse bias, and use sketches wherever possible.
WHAT IS X AND O
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