Question

Two wires of same length and area, made of two materials of resistivity rho1 and rho2 are connected in parallel V to a source of potential. The equivalent resistivity for the same length and area is. Explain?

Answer 1

Answer:

rho = RA/L

Explanation:

1 /ROHeq = 1 / rho1 + 1 / rho 2

= 1/ R1 +1 / R2 ( because area and length is same )

ROHeq = R1R2/ R1 + R2