An electric heater rated is operated for each day for seven consecutive days

PHYSICS · Single correct · CBSE · Physics · Electricity · Electricity

Problem

An electric heater rated

2\,\text{kW}

is operated for

3\,\text{h}

each day for seven consecutive days. If electrical energy costs Rs.

6.50

per unit

(1\,\text{unit}=1\,\text{kWh})

, the total cost for the week is closest to (a) Rs.

126

(b) Rs.

195

273

(d) Rs.

91