JAMB - Physics (2009 - No. 45)
Calculate the e.m.f of the cell in the above circuit if its internal resistance is negligible
12 V
8 V
2 V
36 V
คำอธิบาย
1/R = 1/R1 + 1/R2 = 1/3 + 1/6
= 3/6
∴ R = 6/3 = 2
E = I(R + r) = 4(2 + 0) = 8v
= 3/6
∴ R = 6/3 = 2
E = I(R + r) = 4(2 + 0) = 8v