Question

indicator defination in physics.
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Answer 1

Answer:

A chemical compound that changes color and structure when exposed to certain conditions and is therefore useful for chemical tests. Litmus, for example, becomes red in the presence of acids and blue in the presence of bases.

Explanation:

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Answer 2

Answer:

indicator is a device which provides visual or remote indication of a fault on the electric power system.

. Also called a faulted circuit indicator (FCI), the device is used in electric power distribution networks as a means of automatically detecting and identifying faults to reduce outage time.

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