If your phone supports it, yes - check under SIM Details in your MyO2.
Note you may find your physical SIM drops out of service immediately you select switch to eSim, so you could try the swap in an O2 store, but take photo id with you, @Hardik22.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues. Please select the post that helped you best and mark as the solution. This helps other members in resolving their issues faster. Thank you.