A moving-coil ammeter has spring giving a control constant of 0.2 × 10-6 Nm/degree. If the deflecting torque on the instrument 24 × 10-6 Nm, find the angular deflection of the pointer.

A moving-coil ammeter has spring giving a control constant of 0.2 × 1

1.	A moving-coil ammeter has spring giving a control constant of 0.2 × 10-6 Nm/degree. If the deflecting torque on the instrument 24 × 10-6 Nm, find the angular deflection of the pointer.
A.	120°
B.	40°
C.	90°
D.	100°
Answer» B. 40°

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A moving-coil ammeter has spring giving a control constant of 0.2 × 10-6 Nm/degree. If the deflecting torque on the instrument 24 × 10-6 Nm, find the angular deflection of the pointer.

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