An electric bulb is labeled 240v, 60w. How much current is taken by the bulb?

Current = 0.25 A

Electric power i: electrical energy per unit time  

P = watt  

W = electrical energy, J  

t = time, s  

or

P = V.I  

V=voltages, volt

I=current,A

An electric bulb is labeled 240v, 60w,

So,

P = 60 watt

V=240 volt