Question

Collect information of discovers of electric bulb and electricity

Answer 1

The first electric light was made in 1800 by humphry davy an English scientist who experimented with electricity and invented and electric battery when he connected why is today's battery and a piece of carbon the carbon blowed producing light

Answer 2

electricity and direct current both has been discovered by thomas Alva edison
and alternating current is discovered by Nicola tesla
one major difference between AC and DC current is that in ac current it's frequency is 50 to 60 hz where the current come and goes as many as time possible .
but in dc there is not such phenomenon
at first only dc current is only in use but as time passes ac come in market which collapse the dc marketing