Relay switching

[Raja Vigneshwaran]

Okay but what about the Source and Drain of the MOSFET ?

 

[(*steve*)]

As they were before. This is just a gate driver.

You could also (probably) get away using a BJT to switch the relay. See the resource on switching loads with transistors.

 

[Raja Vigneshwaran]

Thanks guys , atlast I was able to finish the circuit using FDT439NCT N Channel MOSFET