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Work And Energy — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceWork And Energy1 Mark
MCQ
Watt hour represents:
  • A
    Electric energy
  • B
    Current
  • C
    Voltage
  • D
    Power
✓

Answer

  1. Electric energy

Explanation:

The watt - hour (Wh) is a unit of electric energy equivalent to one watt (1 W) of power expended for one hour (1 h) of time. Watt-hour is commonly used in electrical applications. 

1 Wh = 1 × 60 × 60 = 3600J

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