The inductance of a certain moving- iron ammeter is expressed as L = 1 – McqOptions

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1.	The inductance of a certain moving- iron ammeter is expressed as L = 10 + 3 ( frac{ ^2}{4} ) H, where is the deflection in radian from the zero position. The control spring torque is 25 10-6 Nm/rad. The meter carries a current of 5 A. What is the deflection?
A.	2.4
B.	2.0
C.	1.2
D.	1.0
Answer» D. 1.0

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