The ripple counter shown in Fig. is made up negative edge triggered $$J$$-$$E$$ flips flops. The signal levels at $$J$$ and $$K$$ inputs of all the flip-flops are maintained at logic $$1$$. Assume that all outputs are cleared just prior to applying the clock signal.

$$(a)$$ Create a table of $${Q_0},{Q_1},{Q_2}$$ and $$A$$ in the format given below for $$10$$ successive
$$\,\,\,\,\,\,\,\,$$ input cycles of the clock $$CLK1.$$
$$(b)$$ Determine the module number of the counter.
$$(c)$$ Modify the circuit of Fig. to create a modulo$$-6$$ counter using the same
$$\,\,\,\,\,\,\,$$ components used in the figure.

The logic circuit used to generate the active low chip select $$(CS)$$ by an $$8085$$ microprocessor to address a peripheral is shown in Fig. The peripheral will respond to addresses in the range.

When a program is being executed in an $$8085$$ microprocessor, its Program Counter contains

In the resistor network shown in Fig. all resistor values are $$1\,\,\Omega .$$ $$A$$ current of $$1A$$ passes from terminal $$a$$ to terminal $$b,$$ as shown in the figure. Calculate the voltage between terminals $$a$$ and $$b.$$ [Hint: You may exploit the symmetry of the circuit].