1) Design an electrocardiograph with an input-switching system suchthat we can record the six frontal-plane leads by means of changingthe switch.
2) An ECG lead is oriented such that its electrodes are placed onthe body in positions that pick up an electromyogram from the chestmuscles as well as the electrocardiogram. Design a circuit thatseparates these two signals as well as possible, and discuss the limitations of such a circuit.