Question

An electric heater of 2000w is used everyday for 90 mins.calculate the units of electrical energy this heater will consume in 24 days.also find the cost of electricity consumed at the rate of rs3/kwh

Answer 1

Explanation:

90min=1.5hour

total time=24×1.5=36hours

power consumption of heater=2000w or 2kw

energy consumption =2×36=72kwh

rate=3rs/kWh

cost=3×72=216rs