Electrocardiographs are often connected as shown in (Figure 1). The lead wires to the legs are said to be capacitively coupled. A time constant of 3.0 s is typical and allows rapid changes in potential to be recorded accurately. Part A If C = 1.0 µF, what value must R have? [Hint: Consider each leg as a separate circuit.] Express your answer to two significant figures and include the appropriate units. ? R = Value Units Submit Request Answer Provide Feedback Figure < 1 of 1 To left-leg electrode Recorder To right-leg electrode (ground) To arm electrode

Electrocardiographs are often connected as shown in (Figure 1). The lead wires to the legs are said to be capacitively coupled. A time constant of 3.0 s is typical and allows rapid changes in potential to be recorded accurately. Part A If C = 1.0 µF, what value must R have? [Hint: Consider each leg as a separate circuit.] Express your answer to two significant figures and include the appropriate units. ? R = Value Units Submit Request Answer Provide Feedback Figure < 1 of 1 To left-leg electrode Recorder To right-leg electrode (ground) To arm electrode