Question: A voltage V ( t ) = 2 4 0 s i n ( 1 2 0 + ) passes trough a light bulb, R

A voltage V(t)=240sin(120+) passes trough
a light bulb, R=3.58.
a) What is the fight intensity at 4 m away? Average
b) What would the light intensity 4 m away be if the universe way 2D? Average
320
A voltage V ( t ) = 2 4 0 s i n ( 1 2 0 + )

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