Question

Can someone explain how this works? I though Watts (W) = Voltage * Current.

240 * 0.08 = 19.2, so how is this a 8W bulb?

http://i.imgur.com/OFUFQ.jpg

Answer 1

Amazing question!!!!!!!! The relation is correct, but even I am stuck in this question. Hope someone helps me.

Answer 2

Watts is the unit for power, power is a rate... did u notice the 50Hz written on the bulb? that means something... it's not there for fun ;)

Answer 3

\[P=\frac{W}{t}\]
\[P=\frac{qV}{t}\]
------------------
\[I=\frac{q}{t}\]
\[P=IV\]

Answer 4

Still, I am not clear.

Answer 5

The voltage is from AC

Answer 6

\[P=\frac{1}{2}I _{0}^{2}R\]