The potential barrier developed in the diode of figure is `0.5 V`. The current in the diode is current in the diode is

The potential barrier developed in a junction diode opposes

The potential barrier in P-N diode is due to

The cause of potential barrier in a p-n diode is

The current through the ideal diode as shown in the figure is

The cause of the potential barrier in a P_N diode is

A junction diode is connected to an external resistance of 100 Omega and a source of e.m.f. 3.0V. If potential barrier developed in the junction diode is 0.7, obtain the current in the circuit.