Question 30

A Wheatstone bridge is initially at room temperature and all arms of the bridge have same value of resistances $$(R_{1}=R_{2}=R_{3}=R_{4})$$. When $$R_{3}$$ resistance is heated to some temperature, its resistance value has gone up by 10%. The potential difference $$(V_{a}-V_{b})$$ (after $$R_{3}$$ is heated) is ____ V.

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