A potentiometer wire AB having length L and resistance 12r is joined to a cell D of emf ε and internal resistance r. A cell C having emf \epsilon/2 and internal resistance 3r is connected. The length AJ at which the galvanometer as shown in figure shows no deflection is

NEET 2020 Model Question Paper 3

Question : 32 of 180

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A potentiometer wire AB having length L and resistance 12r is joined to a cell D of emf ε and internal resistance r. A cell C having emf

and internal resistance 3r is connected. The length AJ at which the galvanometer as shown in figure shows no deflection is

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