[Answer] it takes ______(how many) time constants for a capacitor to fully charge

Answer: five

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it takes ______(how many) time constants for a capacitor to fully charge The time constant of a resistor-capacitor series combination is defined as the time it takes for the capacitor to deplete 36.8 % (for a discharging circuit) of its charge or the time it takes to reach 63.2% (for a charging circuit) of its maximum charge capacity given that it has no initial charge. Sun Mar 31 2013 · Most stock chargers these days can fully charge a Galaxy S3 in 2-3 hours . So see if your charger can fully charge your S3 in that time. For all practical purposes you can consider the capacitor fully charged after five time constants have elapsed . RC Time Constant Interval Percentage of Total Charge When you put a voltage across a capacitor it takes a bit of time for the capacitor to fully charge. Therefore it is safe to say that the time it takes for a capacitor to charge up to the supply voltage is 5 time constants . To calculate the time constant of a capacitor the formula is τ=RC. Therefore it is safe to say that the time it takes for a capacitor to charge up to the supply voltage is 5 time constants . To calculate the time constant of a capacitor the formula is τ=RC. This value yields the time (in seconds) that it takes a capacitor to charge to 63% of the voltage that is charging it up. Sun Nov 26 2017 · With a constant DC voltage applied to an RC combination it takes 5 time c...

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