Measurement and Instrumentation
A moving coil ammeter has a uniform scale with 50 division and gives a full scale reading 10 A. The instrument can read up to (1/5)th of a scale division with a fair degree of certainty. What is the resolution of the instrument in mA?

 80 mA.
 50 mA.
 25 mA.
  40 mA.

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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.

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

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