Machine-translated by Google. Questions are authored in English.
Top

Discussion

A rectifier instrument consists of a moving coil movement together with

  • A.a shunt of very low resistance across the movement
  • B.a thermocouple heated by the current measured
  • C.a pair of fixed coils providing the field
  • D.a rectifier and a series multiplier

Answer: D

The rectifier gives the movement a unidirectional current whose average it indicates, and the scale is marked in root mean square values on the assumption of a sinusoid. High sensitivity is what makes the arrangement so common in a multimeter.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.