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//Ex8_7
clc
if=100*10^(-6)
disp("if = "+string(if)+" ampere") //Full-Scale deflection current
Av=1*10^(5)
disp("Av= "+string(Av)) //Voltage gain
vs=10*10^(-3)
disp("vs= "+string(vs)+" volts") // Input voltage
RM=100
disp("RM= "+string(RM)+ " ohm") // Moving coil Ammeter internal resistance
Ri=10*10^(3)
disp("Ri= "+string(Ri)+ " ohm") //Input resistance of OP-AMP
R1=vs/if
disp("R1=vs/if= "+string(R1)+ " ohm") // Resistor at input side of OP-AMP in Voltage-to-Current converter
Avf=1+(RM/R1) // formulae using Avf=1+(RF/R1)=1+(RM/R1)// since RF=RM
disp("Avf=1+(RM/R1)="+string(Avf)) // Overall Voltage gain
Rif=Ri*(Av/Avf)
disp("Rif=Ri*(Av/Avf)="+string(Rif)+ " ohm") // Equivalent input side resistance of OP-AMP with feedback
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