A heater operated from a 250 V, 50 Hz single phase supply consumes 2.5 kWh in one hour. If it is now connected to a square wave generator of 400 V peak to peak voltage and frequency 150 Hz the power dissipated by the heater will be:

A heater operated from a 250 V, 50 Hz single phase supply consumes 2.5

1.	A heater operated from a 250 V, 50 Hz single phase supply consumes 2.5 kWh in one hour. If it is now connected to a square wave generator of 400 V peak to peak voltage and frequency 150 Hz the power dissipated by the heater will be:
A.	1.6 kW
B.	2.8 kW
C.	3.2 kW
D.	6.4 kW
Answer» B. 2.8 kW