Corona effect
in transmission can be detected by
1. Hissing
sound
2. Faint
luminous glow which is blue in colour
3. Presence
of ozone which is detected by odours
Which of
these is/are correct?
Only 1 and 2
Only 1 and 3
Only 2
Only 1,2 and
3
Only 1,2 and
3
Corona effect
in transmission can be detected by -
(1) Hissing
sound
(2) Fain
luminous glow which is blue in colour
(3) Presence
of ozone (03) which is detected by odours.
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