Question

An electric motor takes 5A from a 220V supply line. Calculate the power of motor and electrical energy cinsumed by it in 2 hours.

Answer 1

HEY BUDDY..!!

HERE'S THE ANSWER..

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♠️ First we'll find out the power.

✔️ We know power is product of Current and Voltage , i.e

=> Power = Current × Voltage

⏺️ Current ( I ) = 5 Ampere ( A )

⏺️ Voltage or potential ( V ) = 220 V

⏺️Time ( t ) = 2 Hours.

=> P = V × I

=> P = 220 × 5

=> [ P = 1100 Watt ( W ) ] ✔️


▶️ We also know as Power consumed is ratio of Energy ( U ) to time ( t ) , i.e

=> P = U / t

=> Energy = Power × time

=> U = 1100 × 2

=> [ U = 2200 W h OR 2.2 K W h ]✔️



HOPE HELPED...

JAI HIND..

:-)

Answer 2

p = v.I

p=220×5

p = 1100 W



U = p.t

U = 1100×2 = 2200 Wh