Question

an electric iron has a rating of 750W and 220V .calculate current passing through it and it's resistance when in use​

Answer 1

Given:-

• Power of iron (P) = 750W.

• Potential difference (V) = 220 V

To Find:-

• Current passing through it (I).

• Resistance (R).

Solution:-

As we know that

→ P = V×I

→ I = P/v

here

I is the current passing

P is the power

v is the potential difference

Substitute the value we get

→ I = 750/220

→ I = 3.40A

And

→ R = V/I

Substitute the value we get

→ R = 220/3.40

→ R = 64.70 ohm.

∴ The Resistance of the iron is 64.70 ohm and The current passing through it is 3.40 Ampere.