Who is the real inventor of the light bulb?
Nikola Tesla or Edison?

A light bulb is connected to a source of emf.There is a 6.00V drop across the light bulb, and a corner of 4.1 A flowing through the light bulb. What is the resistance of the light bulb? A second light bulb, identical to the first, is connected in series with the first bulb. The potential drop across the bulbs is now 6.07 V, and the current through the bulbs is 2.9 A. Calculate the resistance of the light bulbs.

A. How much voltage does the light bulb use up? How do you measure this value?

B. What is the change in the potential energy of a single electron as it moves through the light bulb?

C. Is this a gain or loss of potential energy?

D. Where in the light bulb gain or loss occur.

When a 60-watt light bulb is connected to a 120-volt source the current in the light bulb is?