In the low - pass filter shown in the figure, for a cut - off frequency of 5 KHz, the value of R₂ (in k$$\Omega $$ ) is _________

In a code - division multiple access (CDMA) system with N = 8 chips, the maximum number of users who can be assigned mutually orthogonal signature sequences is _______.

The capacity of a Binary Symmetric Channel (BSC) with cross - over probability 0.5 is ______ .

A fair coin is tossed repeatedly until a 'Head' appears for the first time. Let L be the number of tosses to get this first 'Head'. The entropy H (L) in bits is _______________.