A no periodic signal has changed to a periodic signal with the period equal to?
o 2 times the bit duration
o 4 times the bit duration
O 8 times the bit duration
o 12 times the bit duration
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2. A large number of goods are bought and sold that we do not use directly . for example car factory purchases engine , gears , petrol tanks , wheels etc. from various other factories.
3.A farmer purchases fertilizers from special shops in the city.
Explanation:
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