A 25 A electrodynamic ammeter is controlled by a spring having a constant of 5.7295x 10 Nm/rad. The full scale deflection is 110°. Determine the inductance of the instrument while measuring a current of 20 A. The mutual inductance at 0° deflection is 4 u H and the change in mutual inductance is linear with the deflection.
A 25 A electrodynamic ammeter is controlled by a spring having a constant of 5.7295x 10 Nm/rad. The full scale deflection is 110°. Determine the inductance of the instrument while measuring a current of 20 A. The mutual inductance at 0° deflection is 4 u H and the change in mutual inductance is linear with the deflection.
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![A 25 A electrodynamic ammeter is controlled by a spring having a
constant of 5.7295x 10° Nm/rad. The full scale deflection is 110°.
Determine the inductance of the instrument while measuring a current of
20 A. The mutual inductance at 0° deflection is 4 u H and the change in
mutual inductance is linear with the deflection.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2074c6ab-2546-41d9-8fef-9fbf5036689c%2Fccfc0d59-57be-4817-b45c-2ec2c50b5aea%2Fkbh1kl_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A 25 A electrodynamic ammeter is controlled by a spring having a
constant of 5.7295x 10° Nm/rad. The full scale deflection is 110°.
Determine the inductance of the instrument while measuring a current of
20 A. The mutual inductance at 0° deflection is 4 u H and the change in
mutual inductance is linear with the deflection.
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