A dynamic RAM cell which holds 5 V has to be refreshed every 20 ms so – McqOptions

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1.	A dynamic RAM cell which holds 5 V has to be refreshed every 20 ms so that the stored voltage does not fall by more than 0.5 V. If the cell has a constant discharge current of 0.1 pA, the storage capacitance of cell is
A.	4 x 10-6 F
B.	4 x 10-9 F
C.	4 x 10-12 F
D.	4 x 10-15 F
Answer» E.

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