In order to forward bias a `PN` junction, the negative terminal of battery is connected to

In a telegraph______is connected to positive terminal of a battery and the negative terminal of the battery is connected to__________

In forward bias in a p-n junction, the potential barrier

A battery is of emf E is being charged from a charger such that positive terminal of the battery is connected to terminal A of charger and negative terminal of the battery is connected to terminal B of charger. The internal resistance of the battery is r .

A p-n junction diode has a forward bias resistance of 10 Omega and a reverse bias resistance of 10 k Omega . It is connected in series with a resistance of 990 Omega and a.d.c. source of 5V in such a way that the negative terminal of the source is connected to then region of the p-n junction. What is the current flowing in the circuit?

Which metal is connected to the negative terminal of the battery?

When the P end of P-N junction is connected to the negative terminal of the battery and the N end to the