Apache2 directory relocation /var/www/html

Hey everyone!
first time post. I am using ubuntu to host a local apache2 web server. Since the computer I'm using has extremely limited internal storage, I wish to migrate the /var/www/html directory to an external hard disk. The amount of files I will be serving far exceeds the storage capacity. Is there a way to tell apache2 to pull the files being served from a different directory other than that specific location at /var/www/html?

I'm a relatively new user in apache2. Any advice/input is greatly appreciated. Thanks

 

First, you have to mount the external hard disk and then mention the path in apache config.