Question

How long can it light a flashlight bulb that draws 0.60 a?

Answer 1

Explanation:

Below is an attachment containing the solution.

Answer 2

A flashlight bulb can light "1.54 hours".

Energy and Power:

The quantity of energy represents the time it supposedly took using the source equals power.

A circular could see requires a specific amount of electricity to operate, as well as the rate at which it draws power from either a battery, affects whether long its energy accumulated would last.

According to the question,

Energy, E = 5 kJ

Voltage, V = 1.5 V

Current, I = 0.6 A

As we know the relation,

→ Energy = Power × Time ...(1)

We know,

→ Power = Current × Voltage

By substituting the values in (1), we get

→    $5000= 0.6\times 1.5\times t$

     $5000 = 0.9\times t$

           $t = \frac{5000}{0.9}$

             $= 5555.65$

             $= 1.54$ hours    

Thus the above answer is correct.              

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