Measurement and Instrumentation
If two meters X and Y require 40 mA and 50 mA respectively, to give full scale deflection, then

 Both X and Y are equally sensitive.
 It would not be possible to assess the sensitivity on the basis of the given data.
 Y is more sensitive.
 X is more sensitive.

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Measurement and Instrumentation
Assertion (A): A hot wire ammeter has a cramped scale. Reason (R): The heat is proportional to square of current.

 Both A and R are true and R is correct explanation of A.
 A is ture and R is false.
 Both A and R are true and R is not correct explanation of A.
 A is false and R is ture.

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