day. What is the cost of the energy to operate it for 10days at Rs 8.00 per kWh?...

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August 2021 2 4 Report

An electric refrigerator rated 400W and an electric bulb rated 100W. Operates 10hours/day. What is the cost of the energy to operate it for 10days at Rs 8.00 per kWh?

singhvikas0790622

Answer:

Given,

Power = P = 400W = 400/1000 kW = 0.4 kW

Total time for which the refrigerator operated = t = 8 hours x 30 days = 240 h

Since, Energy consumed = P x t E = 0.4 x 240 kWh = 96 kWh

Therefore, total cost required to operate the refrigerator for the month = 96 x 30 = 2880 INR

Explanation:

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