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Electronics and Communication Satellite Communication Difficulty: Medium

For a photo-diode with responsivity of 0.50 A/W & optical power of about 12 µW, what would be the value of generated photocurrent? Consider a single input single output discrete-time system with x[n] as input and y[n] as output, where the two are related as $$y\left[ n \right] = \left\{ {\matrix{ {n\left| {x\left[ n \right]} \right|,} & {{\rm{for}}\,0 \le n \le 10} \cr {x\left[ n \right] - x\left[ {n - 1} \right],} & {{\rm{otherwise}}} \cr } } \right.$$ Which one of the following statements is true about the system? Which one of the following is not used for measurement of density? In which of the following base systems is 123 not a valid number? A controller that takes control of the buses and transfers data directly between source and destination bypassing the microprocessor is known as