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Why capacitor allows AC but blocks …

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Why capacitor allows AC but blocks DC

Posted by Debasish Mishra 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Soumya Sakshi 8 years, 1 month ago

It is because the frequency of dc is 0Hz .Thus, the capacitative reactance becomes infinity for it and capacitor does not allows dc to pass through it.however for ac frequency in india is 50 Hz and the value of capacitative reactance for it is not 0. Capacitative reactance=1÷wc,here w=omega.

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