Two similar `p-n` junctions can be connected in three different ways as shown in the figure. The two connections across which the potentional difference is same are.
(a)

How resistors can be connected in different ways ?

Two PN -junction can be connected in series by three different methods as shown in the figure. If the potential difference in the junction is the same, then the correct connection will be

Two similar planoconvex lenses are combined together in three different ways as shown in the adjoining figure. The ratio of the focal lengths in three cases will be

Two similar planoconvex lenses are combined together in three different ways as shown in the adjoining figure. The ratio of the focal lengths in three cases will be

Two similar planoconvex lenses are combined together in three different ways as shown in the adjoining figure. The ratio of the focal lengths in three cases will be

Two identical p-n junctions may be connected in series in which a battery in three ways , fig . The potential drops across the two p - n junctions are equal in

Two identical p-n juctions may be connected in series with a battery in three ways.the potential difference across the two p-n junction are equal in