A cell, resistor, a key and an ammeter are arranged as shown in the circuit diagrams. The current record in the ammeter will be?

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Maximum in (i).

Maximum in (ii).

Maximum in (iii).

Same in all the cases.

answer is D.

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Detailed Solution

When a cell, resistor, a key and an ammeter are arranged as shown in the circuit diagrams, then the current record in the ammeter will be the same in all the cases.
"An ammeter is always connected in series within the circuit." Also, the reading of the ammeter is independent of its location. Hence, it can be said that the readings of the ammeter would be the same in all cases.

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