The circuit model of a dc voltage source is shown in Fig.
Chapter 3, Problem 3.47(choose chapter or problem)
The circuit model of a dc voltage source is shown in Fig. P3.47. The following voltage measurements are made at the terminals of the source: (1) With the terminals of the source open, the voltage is measured at 50 mV, and (2) with a 15 M resistor connected to the terminals, the voltage is measured at 48.75 mV. All measurements are made with a digital voltmeter that has a meter resistance of 10 M. a) What is the internal voltage of the source ( vs) in millivolts? b) What is the internal resistance of the source (Rs )in kilo-ohms?
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