Why voltage is equal in parallel and current is equal in series?
what are the formulas of whole chapter electricity and for competitive exams ?

Asked by Harbans Singh | 17th Aug, 2015, 11:08: AM

Expert Answer:

In a series circuit, there is only one branch through which charges have to flow.
Hence, the current is same in series. Voltage gets divided across individual components so it is not equal.
 
In parallel, the charges have to flow through different branches, and so current is different.
The current gets divided in such a way that the Ohm's law is obeyed and hence, voltage remains same.
 
NOTE: Kindly post the other question as a separate query.

Answered by Romal Bhansali | 17th Aug, 2015, 06:56: PM