CBSE Class 12 Physics 2015 Delhi Set 1 Paper

Question : 1 of 26

Marks: +1, -0

SECTION - A

Define capacitor reactance. Write its S.I. units.

Solution:

It is defined as the opposition to the flow of current in ac circuits offered by a capacitor.
Alternatively:

X_C\;=\;{1}/{ω C}

\;=\;\text " S.I Unit : ohm "\;

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