Physics

Problem

A household operates the following electrical devices every day of a 30-day month: a. (i) A water heater rated at

1500\,\text{W}

for

30\,\text{min}

each day. b. (ii) One ceiling fan rated at

75\,\text{W}

for

10\,\text{h}

each day. c. (iii) Three LED lamps each rated at

9\,\text{W}

for

6\,\text{h}

each day. d. Calculate the total electrical energy consumed in the month in (a) kWh and (b) joule. e. If the electricity tariff is ₹6.00 per unit, determine the amount to be paid for the month.

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