Question

With the help of a circuit diagram derive the formula for the resultant resistance of three resistance connected in series and in parallel

Answer 1

Answer :

When two or more resistors are combined together end to end . This combination is called series combination of resistors.

In a figure shows the series combination of three resistors of resistance R1 , R2 and R3 respectively. Equal current I ampere is flowing through each resistor but potential difference produce across different registers are different as V1, V2, V3.