What is the average voltage vavg of the source?

Question

The figure shows a graph of the output from an AC voltage source. A. What is the maximum voltage Vmax of the source? B. What is the average voltage Vavg of the source? C. What is the root-mean-square voltage Vrms of the source? D. What is the period T of the source? E. What is the frequency f of the source?

[su_box title="♦ Relevant knowledge" box_color="#2d6ff7" radius="1"]The AC systems, we can see the variable voltage and the current's direction changing periodically. The RMS values of alternating current and voltage are described as the following:

The amount of electrical energy used by the resistor in an AC series circuit could be described as the rate at which the circuit is the use of electrical energy from the resistor. When the source of voltage has an amplified value of V , and its impedance is Z then the power that is consumed by the circuit is mathematically expressed like this:

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What is the average voltage vavg of the source?

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