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The inductance of a certain moving-iron ammeter is expressed as L= 10+ 30 – (& /4) µH, where e is the deflection in radians from the zero position. The control spring torque is 25 x 10° Nm/radian. The deflection of the pointer in radian when the meter carries a current of 5 A, is (A) 2.4 (С) 1.2 (В) 2.0 (D) 1.0

The inductance of a certain moving-iron ammeter is expressed as L= 10+ 30 – (& /4) µH, where e is the deflection in radians from the zero position. The control spring torque is 25 x 10° Nm/radian. The deflection of the pointer in radian when the meter carries a current of 5 A, is (A) 2.4 (С) 1.2 (В) 2.0 (D) 1.0

Electric Motor Control
Electric Motor Control
10th Edition
ISBN:9781133702818
Author:Herman
Publisher:Herman
Chapter4: Symbols
Section: Chapter Questions
Problem 5SQ: The symbol shown is a a. polarized capacitor. b. normally closed switch. c. normally open held...
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The inductance of a certain moving-iron ammeter is expressed as L= 10+ 30 – (& /4) µH, where 0 is the deflection in radians from the zero position. The control spring torque is 25 x 10-6 Nm/radian. The deflection of the pointer in radian when the meter carries a current of 5 A, is (А) 2.4 (В) 2.0 (D) 1.0 (С) 1.2
Transcribed Image Text:The inductance of a certain moving-iron ammeter is expressed as L= 10+ 30 – (& /4) µH, where 0 is the deflection in radians from the zero position. The control spring torque is 25 x 10-6 Nm/radian. The deflection of the pointer in radian when the meter carries a current of 5 A, is (А) 2.4 (В) 2.0 (D) 1.0 (С) 1.2
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