. For muscle rehabilitation, patients can be fitted with a small electrical device designed to help strengthen muscle tissue. With this device, a small electrical current is passed through the muscle tissue, stimulating muscle contraction in that region. With involuntary muscle stimulation requiring a current of 10 μA, estimate the minimum required potential difference applied over the length of a bicep muscle needed to stimulate muscle contraction. Assume a bicep muscle has a diameter of 10 cm and a resistivity of 150Ωm.