Give an experiment to demonstrate the force acting on current carrying conductor placed in a magnetic field.the kicking wire experiment

Dear Student
Kicking Wire Experiment

Take a flexible copper wire AB and suspend it from a rigid support with the help of a flexible joint. Place a U shaped magnet around the lower end B of the wire. In the centre of the U shaped magnet place a vessel filled with mercury in such a manner that the lower end B of copper wire touches the surface of mercury. Now, connect the upper end A of wire with the positive terminal of battery and dip another wire from the negative terminal of the battery in the vessel filled with mercury. In this way the circuit gets completed. Now, insert the key. When the key is inserted, the current flows through the wire from end A to B perpendicular to the magnetic field and the wire is kicked outward. This happens because when current passes through a wire placed in a magnetic field, it experiences a force which jerks it in outward direction. It should be noted that the direction of force acting on a current carrying wire placed in a magnetic field is always perpendicular to both the direction of current and magnetic field.
Kicking Wire Experiment

You will also observe that when the direction of current flowing through wire AB is reversed, the wire will move in inward direction.

Regards

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