Question

what do you mean by series connection?

Answer 1

When two or more resistances are connected end to end consecutively, they are said to be connected in series.

Answer 2

Hi.....
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A two terminal element is in series with another two terminal element if there is a path from a terminal of one of the elements to a terminal of the other element that does not branch off at any point. The two elements cannot have both nodes in common (they would be in parallel then).

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hope it will help u .. :-)