Question

Which has the higher resistance -a 50w bulb or a 2.5w bulb and how many times

Answer 1

From the formula of Power, i.e.

P = I^2R

P∞R,

We get Power is directly proportional to Resistance.

Therefore,

If power is more, resistance will be greater and vice-versa.

Thus,

50 watt bulb will have more resistance.