What is the difference between series circuit and a parallel circuit?

For parallel circuit , each & every component shares 2 common connections . But for series circuit , each of them share 1 common connection .

In electrical , each component has their own amount of current flowing through ( depending on the resistance of each ) and sharing the same voltage drop for parallel circuit . In case of series circuit , each component shares the same amount of current with each other & the voltage drop across each of them is different ( depending on their resistance ) .