The deflection in a moving coil galvanometer falls from math xmlns=...

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The deflection in a moving coil galvanometer falls from math xmlns=http://www.w3.org/1998/Math/MathMLmn50/mn/math divisions to math xmlns=http://www.w3.org/1998/Math/MathMLmn10/mn/math divisions when a shunt of 12 \( \Omega \) is applied. What is the resistance of the galvanometer? Assume the main current to remain same.
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