Question

If R₁ and R₂ are filament resistances of a 200 W and a 100 W bulb respectively, designed to operate on the same voltage, then:

Options

• R₁ = R₂

• R₂ = 2R₁

• R₂ = 4R₁

• R₁ = 4R₂

Answer 1

R₂ = 2R₁

If R₁ and R₂ are filament resistances of a 200 W and a 100 W bulb respectively, designed to operate on the same voltage, then: R₂ = 2R₁