Calculate the e.m.f of the cell in the above circuit if its internal resistance is negligible.

Calculate the e.m.f of the cell in the above circuit if its internal resistance is negligible.

Answer Details

1/R = 1/R1 + 1/R2 = 1/3 + 1/6
= 3/6
∴ R = 6/3 = 2
E = I(R + r) = 4(2 + 0) = 8v