Question

Qs] Two wires of same length and area made of two
materials of resistivity P1 and P2, are connected
in series to a source of potential V. The equivalent
resistivity for the same area is
(a P1 + P2
(6) P1 P₂/P1 +p2
(c) (p1 + p2)/p1p2
(d) ( (p1 +p2)) / 2​

Answer 1

Answer:

A

Explanation:

By formula R= pl/A

Resistance is directly prop. to resistivity

Equivalent resistance in series =R1+R2

Hence, euivalent resistivity =p1+p2