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Potentiometer wire AB having length L and resistance 12 r is jointed to a cell D of emf  and internal resistance r, A cell C having emfε/2 and internal resistance 3r is connected. The length AJ at which the galvanometer as shown in fig. shows no deflection is

             

(a)

L

(b)

L

(c)

L

(d)

L


Question ID - 50237 | Top Ranker Answer | SaraNextGen

Potentiometer wire AB having length L and resistance 12 r is jointed to a cell D of emf  and internal resistance r, A cell C having emfε/2 and internal resistance 3r is connected. The length AJ at which the galvanometer as shown in fig. shows no deflection is

             

(a)

L

(b)

L

(c)

L

(d)

L

1 Answer - 5876 Votes

3537

Answer Key : (d) -

i=

i =

=  

⇒  x=



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