Oersted Experiment on Magnetic Effect of Current Oersted ExperimentArrangement : A straight wire AB is connected to a battery V and key K. The wire is held horizontally over a magnetic needle.Working : When key is closed, current flows in the wire in the direction as shown. The needle deflects one side. When key is taken out and current in wire becomes zero, needle … [Read more...] about Oersted Experiment on Magnetic Effect of Current