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Jlenok [28]
3 years ago
12

A light bulb is supplied with 100 J of energy each

Physics
1 answer:
agasfer [191]3 years ago
8 0

Answer:

a.95J

b.90J

Explanation:

a.Applying energy conservation laws:-

Energy  Into Bulb=Light \ Energy+Thermal \ Energy(Heat \ Energy)

Given  that light energy=5J,and Total Energy=100J

Heat \ Energy= \Total \ Energy- Light \ Energy\\=100J-5J=95J

b. Applying the laws in a above.

Total Energy=100J

Light Energy=10J

Heat \ Energy=100J-10J=90J

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