What is PN junction how it connects to battery to get maximum and minimum current
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Pn junction is the combination of p type semiconductor and n type semiconductor.
When these semiconductors are combined they form pn Junction. Due to this formation of junction, a depletion layer is formed.
Now this pn junction can maximise or minimise the flow of current.
To maximise the flow of current, the junction should be connected in forward bias i. e. P side must be connected to positive terminal and n side must be connected to negative terminal of the battery. This case maximise the current because it decreases the width of depletion layer.
To minimise the flow of current, the junction should be connected in reverse bias i. e. P side must be connected to negative terminal and n side must be connected to positive terminal of the battery. This case minimise the current because it increases the width of depletion layer.
Hope it helps you
When these semiconductors are combined they form pn Junction. Due to this formation of junction, a depletion layer is formed.
Now this pn junction can maximise or minimise the flow of current.
To maximise the flow of current, the junction should be connected in forward bias i. e. P side must be connected to positive terminal and n side must be connected to negative terminal of the battery. This case maximise the current because it decreases the width of depletion layer.
To minimise the flow of current, the junction should be connected in reverse bias i. e. P side must be connected to negative terminal and n side must be connected to positive terminal of the battery. This case minimise the current because it increases the width of depletion layer.
Hope it helps you
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