a) What is the current flowing through a heater rated at 4 kW and 220 V?
A) 18.18 A
B) 20 A
C) 22.73 A
D) 25 A

b) What is the resistance of the heater?
A) 10 ohms
B) 12 ohms
C) 15 ohms
D) 20 ohms

c) How much energy is consumed by the heater in 2 hours?
A) 4 kWh
B) 8 kWh
C) 16 kWh
D) 32 kWh

d) If 1 kWh is priced at Rs 4.50, what is the cost of the energy consumed in 2 hours?
A) Rs 18.00
B) Rs 36.00
C) Rs 72.00
D) Rs 144.00