Question

A certain amount of current when flowing in a properly set tangent galvanometer, produces a deflection of ${45}^0$. If the current be reduced by a factor of $\sqrt{3}$, the deflection would

• A. Decrease by ${30}^0$
• B. Decrease by ${15}^0$
• C. Increase by ${15}^0$
• D. Increase by ${30}^0$

Answer 1

The correct option is B Decrease by ${15}^0$