link juice in simpler words is nothing but a secret juice which will help you to beat your competitors in ranking. link juice is calculated by the number of links that are in a particular website. here it also focuses on the quality. The more in number of links with quality, the more is the link juice.
link juice mean getting link back from high pr website. google give rating to such site who have backlink from high pr pages.
Google considers backlink as a vote from another website. It considers it as one of the point to rank website in Google SERP. Normally link are of two types do follow link and No follow links. Google considers do follow link as a back link whereas no follow links don't passes any link juice.
Link juice is the link power that flows through your website. To rank your keywords higher, you are in need to obtain more link juice than the other sites. In order to increase the link juice it’s highly important to drag more links from the site that has a lot of link juice.
link juice is are numbers of website link to indicate one particular website. and google see more link indicate one site so ranking high in search engine.