what is private key and how this key work ?
private key is your secret password aside to your existing one, and its very important to keep because without this private key you wont able to open/control/manage your crypto wallet. and keep it on you mind that you cant share this private key to anyone/anybody to avoid you to get hacked. private key works to retrieve, open, access your crypto wallet.
You are confusing the "wallet" with "address". They are not the same thing.
Here is a simplified explanation of the major terms:
Bitcoins are sent to and from an
address.
A
private key allows you to send bitcoins from an address.
A
wallet is a container that holds private keys (and their associated addresses).
A
seed is used by a wallet to generate private keys.
A
password is used to encrypt a wallet so that only you can use the private keys that it contains.