Answer:
Diodes
Explanation:
Diodes are solid-state components that allow current to flow in one direction (forward biasing).
We can see from the graph of input voltage and current that under reverse biasing a negligible current is flowing.
And under forward biasing negligible current is flowing up to [tex]0.7\ V[/tex].
After crossing this potential barrier we can observe an increase in current but the voltage does not go higher than [tex]0.7\ V[/tex]. Even with the high input voltage.
Hence, diodes helps in maintain proper voltage level in the circuits.
