An electric motor takes 5 A from a 220 V line Determine the power of the motor and the energy consumed in 2 h CBSE Physics
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An electric motor takes 5 A from a 220 V line. Determine the power of the motor and the energy consumed in 2 h. -CBSE Physics




By:milan-ransingh

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Solution:
Given that electric current (I) = 5A, Potential difference (V) =220V
Time (t) =2h=2×60×60s=7200s
 Now Power (P) is given by the expression
P=VI=220×5watts=1100w
Now Energy consumed by the motor
H= Pt=1100×7200J=7.92 × 106 J

13priya

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