potential difference across the ends of an electric wire is 240 volt and the current is 16 ampere what is the resistance of electric iron?
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Ohm's law states that the current through a conductor between two points is directly proportional to the potential difference across the two points. Introducing the constant of proportionality, the resistance, we arrive at the usual mathematical equation that describes this relationship: I=
R
V
,
where, I is the current through the conductor in units of amperes, V is the potential difference measured across the conductor in units of volts, and R is the resistance of the conductor in units of ohms.
Therefore, R=V/I.
R=
0.2
15
=75Ω
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