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Why is an ammeter always connected in se...

Why is an ammeter always connected in series in a circuit? What change do you observe in the reading of an ammeter if it is connected in parallel in a circuit?

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Ammeter is connected in series always. Ammeter has a very low resistance. So the current which we measure in a circuit using the ammeter will be same as if the ammeter is not there.
So connecting an ammeter in parallel with a circuit means that you just short circuited the circuit you were intending to measure.
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