Which of the following instruments can be used for dc as well ac upto a few MHz ___

Which of the following instruments can be used for dc as well ac upto a few MHz?

  1. Moving iron instrument
  2. Thermocouple instrument
  3. Induction instrument
  4. Moving coil instrument

Select the correct answer as per following codes

A. 2 only
B. 2 and 3 only
C. 1, 2 and 3 only
D. 2 and 4 only

Show Answer

Answer: A

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