Correct option is B
In a three-phase system, the phase displacement between the phases is 3360∘=120∘, and the instantaneous power is constant, equal to three times the power per phase.
Which of the following statements is/are true regarding symmetrical balanced three phase supply:
1 Instantaneous values of power in all of the 3 phases become zero at same instant.
Power loss and voltage drop respectively, in the 2Ω resistor is

A copper wire is stretched so that its length is increased by 0.2%. What is the percentage change in the resistance?
What is the magnetic field strength required to produce a flux density of 1mWb/m² in air?
A load resistance R_L is supplied from a dc voltage source of resistance R. Maximum power transfer to the load occurs when which of the following condition is satisfied?