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A device X is connected across an ac sou...

A device X is connected across an ac source of voltage `V = V_(0) sin omegat`. The current throught X is given as `I= I_(0)sin(omgat + (pi)/(2))`
(a) Identify the device X and write the expression for its reactance.
(b) Draw graph showing variation of voltage and current with time over one cycle of ac, for X.
How does the reactance of the device X vary with frequencey of the ac? Show this variation grachically.
(d) Darw the phasor diagram for the device X.

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