Question

Derivation of resistors connected in parallel

Answer 1

V=V1=V2=V3--------(1) I=I1=I2=I3---------(2) I=V/R----------(3) Therefore Substituting 3 in 2 V/R=V1/R1+V2/R2+V3/R3 V/R=V(1/R1+1/R2+1/R3) Therefore 1/R=1/R1+1/R2+1/R3