Correct Answer : Option (B) : Non-causal
Explanation : The given impulse response h [n] = u [n+3] is not causal because of the term u [n+3] which implies it is non zero for n= -1, -2, -3.
Correct Answer : statistical dependence
Correct Answer : 1 and 3 only
Correct Answer : currents through inductances and voltages across capacitances