In a resistive AC circuit, the total power (P) can be calculated using the formula P = V * I * cos(φ), where φ is the phase angle between the voltage and current.

The total power in a three-phase AC system is calculated using the formula P = √3 * V * I * cos(φ), where φ is the phase angle.

In a series AC circuit, the total impedance (Z) is the sum of the resistance (R) and the reactance (X), expressed as Z = R + jX, where j is the imaginary unit.

In a series RLC circuit, the total impedance (Z) is given by Z = R + j(X_L - X_C), where X_L is the inductive reactance and X_C is the capacitive reactance.

The impedance of a capacitor in an AC circuit is given by Z_C = 1 / (jωC), where ω = 2πf is the angular frequency.

In a purely resistive circuit, the impedance (Z) is equal to the resistance (R), as there is no reactance involved.

The Norton equivalent current is defined as the current that flows through a short circuit placed across the terminals of the circuit.

The Norton equivalent circuit is represented by a single current source in parallel with a resistance, simplifying the analysis of the circuit.

In a purely capacitive circuit, the current leads the voltage by 90 degrees.

In a purely resistive AC circuit, the voltage and current are in phase, meaning the phase difference is 0 degrees.

Power (P) can be calculated using P = I^2 * R. Therefore, P = (2A)^2 * 10Ω = 4 * 10 = 40W.

The power factor in an AC circuit with a purely resistive load is 1, indicating that all the power is being used effectively.

The power factor is defined as the ratio of real power (P) to apparent power (S) in an AC circuit, indicating how effectively the current is being converted into useful work.

The power factor is defined as the cosine of the phase angle between voltage and current. In a purely resistive circuit, this angle is 0 degrees, so the power factor is 1.

Ohm's Law states that the voltage (V) across a conductor is directly proportional to the current (I) flowing through it, with the resistance (R) being the constant of proportionality.

The Thevenin equivalent circuit is represented by a single voltage source in series with a resistance, simplifying the analysis of the circuit.

In a series circuit, the Thevenin voltage is the same as the source voltage, so Vth = V1 = 10V.

The Thevenin equivalent voltage is the open-circuit voltage across the load, which is the same as the source voltage in this case, 10V.

The Thevenin equivalent voltage is defined as the open-circuit voltage measured across the terminals of the circuit.

The unit of impedance is the Ohm (Ω), which measures the opposition that a circuit presents to the flow of alternating current.