Question

A 2kw heater is connected to a 220 V supply line . Should it be connected to a 5A or a 15A circuit? Justify with calculation.

Answer 1

Answer:

it is the answer for the above given question

Answer 2

$\huge\mathfrak{Answer}$

$\huge\sf{Given}$

Power of heater = 2 kw= 2000 wt

Voltage = 220 V

Current = ?

First, We have to find the current flow in the heater.

By using power,Voltage and current Relationship.

$\boxed{\sf{ P = V × I}}$

Now put the value of V and P in equation.

$\implies$ $\bold{2000= 220 × I }$

$\implies$ $\bold{I = 9.09 Ampere}$

Now,We can see that the value of current is 9 amp if, we use 5A fuse then it get short circuit due to flow of maximum current.

hence, Fuse of 15 A is used for connecting the heater.