SSE JE Electrical Engineering 29 Oct 2020 Shift 2 Papers

Question : 105 of 200

Marks: +1, -0

In the indicating instruments, the control torque produced by the spring is:

Solution:

In spring control instrument, the controlling torque is given by,

\T _{ \c }= \K _{ \c } \θ

\T _{ \d } ∝\I

At equilibrium position,

\T_\C = \T_\D

⇒\I ∝ \θ

Hence in spring control, the scale is uniform

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