Question

which has more resistance 100W bulb Or 600W bulb? ​

Answer 1

100-watt bulb has more electrical resistance.

Reason:

• Power is inversely proportional to resistance.

• When power is less, resistance is high.

Simplification:

Given,

• P₁ = 100 W

• P₂ = 600 W

We know,

$\boxed{\sf{R= \dfrac{V^2}{P}}}$

Here,

• R = Resistance

• V = Voltage

• P = Power

$\boxed{\sf{\implies R \propto \dfrac{1}{P} \ for \ same \ V }}$

$\sf{\therefore P_1>P_2\implies R_2>R_1}$

∴ 100-watt bulb has more electrical resistance.