Question

Define resistance? Obtain an expression for three resisters connected in series.​

Answer 1

By Ohm's law, the potential differences across the three resistors will be, V1=IR1,V2=IR2,V3=IR3. If Rs be the equivalent resistance of the series combination, then on applying a potential difference V across it, the same current I must flow through it. Therefore, V=IRs.

@Samu ❤️