An attenuator probe employed with oscilloscopes was designed to reduce the magnitude of th...

An attenuator probe employed with oscilloscopes was designed to reduce the magnitude of the input voltage vi by a factor of 10. As shown in Fig. 7.149, the oscilloscope has internal resistance Rs and capacitance Cs , while the probe has an internal resistance Rp . If Rp is fixed at 6 MΩ, find Rs and Cs for the circuit to have a time constant of 15 μ s.