Question

If P and V are the power and potential of device, the power consumed with a supply potential V₁ is:

Options

• `"V"_1^2/"V"^2 "P"`

• `"V"^2/("V"_1^2) "P"`

• `"V"/"V"_1 "P"`

• `"V"_1/"V" "P"`

Answer 1

`"V"_1^2/"V"^2 "P"`

Explanation:

R = `"V"/"V"_1` and P₁ = `"V"_1^2/"V"^2 "P"`