Electrostatic Instruments - No usage of iron

Q.  In electrostatic instruments iron is not used in their construction. These instruments are
- Published on 05 Nov 15

a. Free from hysteresis and eddy current losses
b. Free from temperature errors
c. Dependent on temperature errors
d. Both (a) and (b)

ANSWER: Both (a) and (b)


  • Akash gupta   -Posted on 25 Apr 16
    Sir if Question asks which instrument is free from hysteresis and Eddy current errors
    And Electrostatic and moving coil dynamometer type both in answer and one have to choose then which one is the answer please explain with reason

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