An electrical appliance draws a current of 0.5A when applied potential difference across it is 220V.Calculate the amount of charge flowing through it in 30 minutes.

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Solution

Charge = current $\times$ time
current = 0.5 A , time = 30 minutes = 30 $\times$ 60 = 1800 seconds

Charge = 0.5 $\times$ 1800 =900 coulomb

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An electrical appliance draws a current of 0.5A when applied potential difference across it is 220V.Calculate the amount of charge flowing through it in 30 minutes.

Charge = current × time current = 0.5 A , time = 30 minutes = 30×60 = 1800 seconds Charge = 0.5×1800 =900 coulomb

Charge = current $\times$ time
current = 0.5 A , time = 30 minutes = 30 $\times$ 60 = 1800 seconds

Charge = 0.5 $\times$ 1800 =900 coulomb