Question

What are the output voltages of the unloaded voltage divider shown in Fig. 1.91? What is the direction of current through AB?

Answer 1

It may be remembered that both V₁ and V₂ are with respect to the ground.

R = 6 + 4 + 2 = 12Ω

∴ V₁ = drop across R₂ = 24 × 4/12 = + 8 V

V₂ = drop across R₃ = − 24 × 2/12 = − 4V

It should be noted that point B is at negative potential with respect to the ground.

Current flows from A to B i.e. from a point at a higher potential to a point at a lower potential.