Answer / antaryami mallick

In electrical resonance type measuring instrument it is based on electical resonance that is the pointer remains at stable for any frequency where the inductive reactance is equal to the capacitive reactance.This reactances of inductor in moving coil is adjusted by the torque produced in it.

Answer / faraj

it measure the number of signal zero crossing or the priodic time of the signal 

why we calculate only 11kv 33kv and 132kv ... why not 10kv 20kv 45kv?

3 Answers   Bhel, ISMT,

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