PhysicsEasy94×since 2002Q5904A resistance of 40 Ω\OmegaΩ is connected to a source of alternating current rated 220 V, 50 Hz. Find the time taken by the current to change from its maximum value to the rms value :A2.5 msB1.25 msC2.5 sD0.25 sCheck answerSkip