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Why does the DC voltage needed is less than AC needed to
produce corona?
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Answer Posted / akki
AC voltages are associated with skin effect and thus,
current flows effectively very close to the surface of the
cables. Therefore, resistance offered increases.
Since AC resistance is greater than DC resistance and corona
discharge is favorable in higher conductivity, therefore the
dc voltage to achieve corona is lower than the ac voltage
needed to produce corona
| Is This Answer Correct ? | 2 Yes | 4 No |
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