Five lamp, each labbled "6V,3W" are operated at normal brightness. What is the total energy supplied to the lamps in five seconds.​

E = 75 J

Explanation:

First, we will calculate the total power consumed by the five lamps:

Now, the energy supply can be calculated as follows:

where,

E = Energy = ?

t = time = 5 s

Therefore,

E = (15 W)(5 s)

E = 75 J

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