Answer ALL Questions
Questions 1.
Figure 1 shows operational amplifier (op-amp) circuits for different functions.
(a) Determine the output voltage of the circuit in Figure 1(a) when different
voltages are applied to the inputs, $V_1 = 1V$, $V_2 = 2V$, $V_3 = 3V$ and $V_4 = 4V$.
[2 marks]
(b) The circuit in Figure 1(b) has an output range of $\pm 10V$ and initial output
voltage, $V_o$ of $+10V$. If an input voltage, $V_{in} = (M_{no} \times 10^5)$ Volts is applied
(where $M_{no}$ is your matric number), what will be the output voltage?
[2 marks]
$M_{no} = 191286$
