English noun: time constant | |||
1. | time constant (time) (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 | ||
Broader (hypernym) | interval, time interval | ||
Narrower (hyponym) | relaxation time | ||
Domain category | electronics | ||
2. | time constant the ratio of the inductance of a circuit in henries to its resistance in ohms | ||
Broader (hypernym) | ratio | ||