Is the motion of a charge across junctio...

Is the motion of a charge across junction momentum conserving ? Why or why not ?

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Near the junction, there is a slight accumulation of charges that create their own electric fields. These electric fields created by individual charges apply forces on nearby charges. Since, `F_("ext") ne 0`, the momentum of a charge will not remain conserved.

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A charge is moving across a junction, then

momentum will be conserved

momentum will not be conserved

at some places momentum be conserved and at other places momentum will not be conserved

none of these.

Assertion: When PN -junction is forward biased then motion of charge carriers at junction is due to diffusion. In reverse biasing. The cause of motion of charge is drifting. Reason: In the following circuit emitter is reverse biased and collector is forward biased.

If both the assertion and reason are true and reason is a true explantion of the assertion.

If both the assertion and reason are true but the reason is not true the correct explantion of the assertion.

If the assertion is true but reason false

If both the assertion and reason are false.

In Fig . V_(0) is the potential barrier across a p-n junction, when no battery is connected across the junction

1 and 3 both correspond to forward bias of junction

3 corresponds to forward bias of junction and 1 corresponds to reverse bias of junction

1 corresponds to forward bias and 3 corresponds to reverse bias of junction

3 and 1 both correspond to reverse bias of junction