In a balanced three-phase star-connected system, the line voltage is equal to how many times its phase voltage?

In an AC parallel circuit consisting of multiple branches, the total admittance (Y) is the phasor sum of the individual branch admittances. Which of the following expressions correctly represents the magnitude of the total admittance in terms of total conductance (G) and net susceptance (B)?

What happens to the phase angle between the voltage and the current in a series resistor-inductor (R-L) circuit when the frequency of the applied AC voltage is increased?

When solving AC parallel circuits using the phasor method, how are the branch currents combined to find the total current?

Which of the following statements is/are correct? Statement 1: At resonance in a series R-L-C circuit, the voltage across the inductor or capacitor can become much higher than the applied source voltage. Statement 2: Voltage magnification occurs because inductive reactance and capacitive reactance are equal and opposite at resonance.

In a parallel R-L-C circuit, at resonance, the impedance of the circuit is:

In a power triangle, the hypotenuse represents the:

In an AC circuit with a purely resistive load, the reactive power is:

In an AC circuit with a pure capacitor, the voltage across the capacitor: