Question

Q). The unique addresses assigned to the four registers (R1,R2,R3,R4) of the I/O interface are equal to the XX3 , XX7 , XXB and XXF in Hex . Where XX is hex digits equal to your 82 .Show the well labeled external circuit that must be connected between and 12-bit I/O address from the CPU and the CS, RSI, and RS0 Inputs of the Interface

Answer 1

On connecting the two given capacitors, let the final voltage be V.

If capacity of capacitor without the dielectric is C, then the charge on this capacitor is q1​=CV

The other capacitor with dielectric has capacity εC.

Therefore, charge on it is q2​=εCV

As ε=αV, therefore q2​=ε=αV

The initial charge on the capacitor (Without dielectric)

that was charged is q0​=CV0​

From the conservation of charge, q0​=q1​+q2​