Question

The filament of electric bulb draces a current of 0.4 ampere .Calculate the amount of charge flowing through the filament if the bulb glow for 2 hours .Also calculate number of electons pass?

Answer 1

Answer:

Explanation:

current = 4/10 A

time = 2 hrs = 7200sec

charge = time * current

            = 7200*4/10

            =2880 C

no. of electrons = charge /  electronic charge

                         = 2880/1.6*10¹⁹

                        =1.8 * 10¹⁶

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