Talk to him and change supplies. If you have or wearing the armor in your apparel just swap it over to his box as you would with ammo/guns etc and he wears it automaticly.
If you have or find a dead Brotherhood of steel Power armor he can wear it even if you cant yet. This will make him near indestructible.
Jericho is in megaton and u need bad karma to get him
Jericho can be found in Megaton inside his house or walking around the town.
You would need to have the PC version of Fallout 3 and download a mod.
no there might be on add on content
No,
You cant
the tesla armor helps you resist radiation and it makes you better with energy weapons
no
the prototype T-51b power armor in Fallout 3 is designed just like normal T-45d power armor but it does not sacrifice agility for armor rating and rad resistance.
once you have power armour traning you can wear enclave armour.
you will find loads of ammo and a medical power armor
no Jericho will stay with you no matter what your kama is