An electric kettle has the resistance of 30 ohms. Find the current that flow when it is connected to a 240 V supply . Find also the power rating of the kettle ?

To find the current that flows through the electric kettle, we can use Ohm's Law:

V = I * R

Where:
V = 240 V (supply voltage)
R = 30 ohms (resistance of the kettle)
I = current

I = V / R
I = 240 / 30
I = 8 A

Therefore, the current that flows through the electric kettle is 8 amperes.

To find the power rating of the kettle, we can use the formula:

P = V * I

Where:
P = power
V = 240 V (supply voltage)
I = 8 A (current)

P = 240 * 8
P = 1920 watts

Therefore, the power rating of the electric kettle is 1920 watts.