Light and heat.
electricity because a light bulb needs electricity
no
Electricity + Glass = Light bulb
Input to light bulb is Electricity and output is light.
Electricity is the source of energy in a light bulb.
He didn't get electricity, he studied it and also found men who helped Thomas Edison get electricity for his light bulb
electricity
Electricity is passed through a wire from battery to bulb
to convert electricity into light
electricity
A light bulb
It produced electricity It produced electricity