How can we distinguish between Current & Potential transformer physically?

if it already connected then ct is always in series
and pt is always in parallel , a wire cnnectd
towards earth i think.
Potential has high resistance with
it, so if it not connected we can measure it by it.
CT has either phase or nuetral
through it or in series and there is no ground
connection. In case og PT the ptential difference
is concern so is connected in parallel with phase
and ground.

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Answered by #aMeer.