Question

In an a.c. circuit, with phase voltage V and current I, the power dissipated is ______.

विकल्प

• V I

• `"V I"//sqrt2`

• depends on the phase angle between V and I

• V I / 2

Answer 1

In an a.c. circuit, with phase voltage V and current I, the power dissipated is depends on the phase angle between V and I.

Explanation:

Since P_av = E_v I_v cos ϕ, the power dissipated depends on the phase angle between V and I.