How Is Electrical Energy Converted to Heat in a Lamp?

[Fusilli_Jerry89]

Homework Statement

a 60 W lamp has a potential difference of 120 V across its terminals. at what rate is electrical energy transformed into heat at the lamp?

Homework Equations

The Attempt at a Solution

60 W: 60/120 = 0.5A (0.5 A)(120V) = 60 J/sec

 

[husky88]

That's correct. The definition of power, which is 60 W, is the rate electrical energy is transformed. You don't need to do any calculations. The answer is given.