All electric devices are required to have identifying plates that specify their electrical characteristics. The plate on a certain steam iron states that the iron carries a current of 6.00 A when connected to a source of 1.20 ✕ 102 V. What is the resistance of the steam iron?

20ohms

Explanation:

According to ohms law, the current passing through a metallic conductor is directly proportional to the potential difference across its ends. Mathematically,

V = IR where;

V is the potential difference

I is the current

R is the resistance

Given current I that the iron carries = 6.0A

Voltage source (the Emf) = 1.2×10²V

resistance R = V/I

R = 120/6

R = 20ohms

Therefore the resistance of the steam iron is 20ohms

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