Question

An electric heater consume 3.6 MG when connected to a 250 volt supply for 40 minutes find the power rating of the heater and the current taken from the supply​

Answer 1

what do you mean by MG. explain

Answer 2

The power rating of the heater and the current taken from the supply​ are 1.5k W and 6 A respectively.

Explanation:

Given the energy consumes of the electric heater, E = 3.6 MJ.

The voltage supplied to the heater, V = 250 V.

The time taken, t = 40 min = 40 x 60 s =2400 s.

The formula to calcualte the power rating by the heater is given as,

$P=\frac{E}{t}$

substitute the values, we get

$P=\frac{3.6\times10^6J}{2400s}$

P = 1.5 kW

Now the relation between power, current and voltage is given as

 $P=VI$

Here, I is the current.

substitute the values, we get

$1500W=250V\times I$

$I=\frac{1500W}{250V}$

I = 6 A.

Thus, the power rating of the heater and the current taken from the supply​ are 1.5 kW and 6 A respectively.

#Learn More: power energy and time.

https://brainly.in/question/9926079