Explanation of Faraday’s Work

Explanation of Faraday’s Work Points : Explanation of Faraday’s Work At what time a linear conductor is forced across the magnetic field there is an induced current, the way of induced current is known by Fleming’s right hand rule. No induced currents are set up if the conductor is motivated in a direction parallel to the flux. Experiment on electromagnetic induction, Faraday used coils of wire wound on the same core, one coil being connected to a battery and the other to a galvanometer. On starting a current in the battery circuit (primary), an induced current was originate to be set up in the opposite direction in the galvanometer circuit (secondary). When the primary circuit was broken, a current was seen to be induced in the secondary circuit in the similar direction as that in primary circuit. Comparable property were observed on increasing or decreasing the primary current or comparatively altering the positions of the circuit, the induced current lasting only as a change was being ended. Induced e.m.f.s. can also be obtain through inserting a bar magnet into a solenoid attached to a galvanometer, the direction of the e.m.f. in the solenoid being such that the magnetic field connected by it was opposite to that of the magnet. Faster rate of placing or withdrawal generate greater e.m.f.