The electric bulb of 40 watt is used for 25 days at 10 hour per day. Find the unit of electric consumed by the bulb at the cost of using electricity at the rate 2 per unit
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Answer:
Energy consumed by the bulb = 10 units
Cost = 20 Rupees
Explanation:
Power of bulb = 40 watt
Total usage = 25 × 10 = 250 hours
total energy consumed = power × time = 40 × 250 = 10,000 (watt.hour)
= 10 kilo watt.hour = 10 units
(One unit = 1 kilo watt hour)
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