The primary motive of consumer behavior is to gain energy for locomotion. The secondary motive is energy for building new cells.

Primary Means, it is individual there is no dependence, But Secondary will allays depends on Primary, If you want to do Secondary, you should complete primary first, There is no precondition to primary, but for Secondary Primary is the Precondition, first you should do primary, then only you are able to do secondary.

primary: Raul

Secondary: Julie

primary and secondary demand

Voltage on primary/Primary turns = Voltage on secondary/Secondary turns