10.5 Exercise 9

An ECG monitor must have an RC time constant less than $1.00 \times 10^{2} \mu \text{s}$ to be able to measure variations in voltage over small time intervals. (a) If the resistance of the circuit (due mostly to that of the patient’s chest) is $1.00 \text{k} \Omega$, what is the maximum capacitance of the circuit? (b) Would it be difficult in practice to limit the capacitance to less than the value found in (a)?