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
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 | SaraNextGen Top Answer
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
|
Potentiometer wire AB having length L and resistance 12 r is jointed to a cell D of emf |
|||
|
(a) |
|
(b) |
|
|
(c) |
|
(d) |
|
=
=
127