Define time constant of RC circuit. Aakanksha Define time constant of RC circuit.2011-08-30T07:38:54+00:00 › Forums › Assignment Help › Define time constant of RC circuit. Tagged: circuit assignment help, physics assignment help This topic contains 1 reply, has 1 voice, and was last updated by Aakanksha 9 years, 5 months ago. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts August 30, 2011 at 7:38 am #1396 AakankshaParticipant Define time constant of RC circuit. August 30, 2011 at 7:39 am #9961 AakankshaParticipant The time constant RC circuit is defined as the time taken by the voltage across the capacitance to reach steady value if initial rate of rise is maintained. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic.