contestada

If 100 J of electrical energy enter the bulb and 5 J of light energy leave the bulb, how many joules of heat energy leave the bulb?

Respuesta :

As per energy conservation we know that

Energy enter into the bulb = Light energy + Thermal energy

so now we have

energy enter into the bulb = 100 J

Light energy = 5 J

now from above equation we have

[tex]100 = 5 + heat[/tex]

[tex]Heat = (100 - 5) J[/tex]

[tex]Heat = 95 J[/tex]


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