Question

Question #5bc8b

Answer 1

`tau=0.037"s"`

Explanation:

If you charge a capacitor through a resistor the time constant is given by:

`tau=RC`

This is the time taken to charge the capacitor by `63.2%` of its initial and final values.

So from zero charge this means the capacity remaining is 36.8%.

In this case:

`tau=127xx290xx10^(-6)=0.037"s"`