time constant


nounElectricity.
  1. the time required for a changing quantity in a circuit, as voltage or current, to rise or fall approximately 0.632 of the difference between its old and new value after an impulse has been applied that induces such a change: equal in seconds to the inductance of the circuit in henries divided by its resistance in ohms.

Origin of time constant

1
First recorded in 1890–95

Words Nearby time constant

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British Dictionary definitions for time constant

time constant

noun
  1. electronics the time required for the current or voltage in a circuit to rise or fall exponentially through approximately 63 per cent of its amplitude

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