defence exam ITBP (Telecommunication) Head Constable Mock Test 2024 Physics Current, Resistance and Electricity Power in Electric Circuits
A heater is marked 500 watt, 200 volts. The cost of using the heater for four hours at 15 paisa per unit is:
1
90 paisa
2
60 paisa
3
30 paisa
4
15 paisa