Question
Download Solution PDFThe full-scale deflecting torque of a 20 A moving-iron ammeter is 6 × 10-5 N-m. What is the rate of change of self-inductance with respect to the deflection of the pointer of the ammeter at full scale?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
The defecting torque is given by
The deflection angle in a moving iron instrument is given by
I is the current flows through the coil
Kc is the spring constant
Calculation:
Given that, I = 20 A
Deflecting torque (Td) = 6 × 10-5 N-m
Last updated on Jul 2, 2025
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