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?

  40 mA.
 50 mA.
 80 mA.
 25 mA.

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Measurement and Instrumentation
Which of following is not correct?

  An electronic voltmeter draw appreciable current from the source.
 An ammeter should have a very low resitance.
 Voltmeter should have very high resistance.
 A shunt should have a very low resistance.

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