Question

need HELP!! PLS!! (any one)

Answer 1

Power rating of iron (P) = 840W

Voltage (V) = 220V

Let current = I
resistance = R
__________________

We know that P = VI

=> 840 = 220 × I

=> I = 840/220

=> I = 4A

So current is 4 ampere.
_____________________

V = IR

=> 220 = 4 × R

=> R = 220/4

=> R = 55 ohm

Resistance is 55 ohm

Answer 2

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Power rating of iron (P) = 840W

Voltage (V) = 220V

Let current = I

resistance = R

__________________

We know that P = VI

=> 840 = 220 × I

=> I = 840/220

=> I = 4A

So current is 4 ampere.

_____________________

V = IR

=> 220 = 4 × R

=> R = 220/4

=> R = 55 ohm

Resistance is 55 ohm.

HOPE SO IT WILL HELP....