If $$CS\;=\overline{A_{15}}\;A_{14}\;A_{13}$$ is used as the chip select logic of a 4K RAM in an 8085 system, then its memory range will be

The value of R (in ohms) required for maximum power transfer in the network shown in Fig. is

The Thevenin equivalent voltage V_TH appearing between the terminals A and B of the network shown in Fig. is given by

For the network shown in Fig., evaluate the current I flowing through the 2Ω resistor using superposition theorem.