Question

a 2kw heater is connected to a 220v supply line should it be connected to a 5A or 15A cicuit? justify with calculations​

Answer 1

Answer:

15 Ampere

Explanation:

Power = 2Kw = 2000 watt

Volt = 220 V

Current = ?

We known,

Power = Volt × Current

P = VI

I = P/V

I = 2000/ 220

I = 9.09 A

Therefore, the value of current is 9.09 A

If we use 5 A then the circuit will get spoil because of more amount of current is flowing through it. Therefore 15 A should be used.