A current through a horizontal power line flows in east to west direction. What will be the direction of magnetic field at a point directly below it when viewed from east end?

The rule that determines the direction of a magnetic field produced around a straight conductor carrying current is :

If potential difference and current flowing through a wire is increased twice each then electric power :

The magnetic field produced by a current-carrying straight wire at a point outside the wire depends

The potential difference between the two end terminals of an electric heater is 220 V and the current through it is 0.5 A. What would be the current through the heater if the potential difference acr…

According to Fleming’s right-hand rule, if the forefinger indicates the direction of magnetic field and thumb shows the direction of motion of conductor, then the stretched middle finger will predict…