Saved Bookmarks
| 1. |
In a pure capacitive circuit if the frequency of ac source is doubled, then its capacitive reactance will beA. remains sameB. doubledC. halvedD. zero |
|
Answer» Correct Answer - C Capacitive reactance, `X_(C )=(1)/(2pi upsilon C)` `rArr X_(C ) prop (1)/(upsilon) therefore (X_(C_(1)))/(X_(C_(2)))=(upsilon_(2))/(upsilon_(1))=(2upsilon)/(upsilon)=2` `rArr X_(C_(2)) = (X_(C_(1)))/(2)` |
|