Hi i have a question about capacitor theory:
Suppose i had a standard led(1.7vf) connected though a 10k resisitor and discharged a capacitor though it how would i work out how long say a 100uf capacitor would be able to substain enough current to visable light the led ? please give an example
Also how would i work out how much capictance i would need to substain a charge of 9v at 3ma for 3min ?
Thanks
Suppose i had a standard led(1.7vf) connected though a 10k resisitor and discharged a capacitor though it how would i work out how long say a 100uf capacitor would be able to substain enough current to visable light the led ? please give an example
Also how would i work out how much capictance i would need to substain a charge of 9v at 3ma for 3min ?
Thanks