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The inductance of a certain moving-iron ammeter is (8+40-. 8-8²) pH, where 0 is the deflection in radian from the zero position. The control spring torque is 12 × 10-6 Nm/rad. Calculate the scale position in radian for current of 5 A. [2.04 rad]

The inductance of a certain moving-iron ammeter is (8+40-. 8-8²) pH, where 0 is the deflection in radian from the zero position. The control spring torque is 12 × 10-6 Nm/rad. Calculate the scale position in radian for current of 5 A. [2.04 rad]

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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5) The inductance of a certain moving-iron ammeter is (8+40- 0-²) pH, where 0 is the deflection in radian from the zero position. The control spring torque is 12 × 10-6 Nm/rad. Calculate the scale position in radian for current of 5 A. [2.04 rad] (a) Discuss the constructional details of a thermocouple-type instrument used at very high frequencies Write
Transcribed Image Text:5) The inductance of a certain moving-iron ammeter is (8+40- 0-²) pH, where 0 is the deflection in radian from the zero position. The control spring torque is 12 × 10-6 Nm/rad. Calculate the scale position in radian for current of 5 A. [2.04 rad] (a) Discuss the constructional details of a thermocouple-type instrument used at very high frequencies Write
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