GPHY - Magnetic Induction

• Electromagnetism - Electricity and magnetism is closely related
• Hans Christian Oersted - he discovered that the electric current has a magnetic effect
• Joseph Henry - he discovered the electromagnetic induction.
• Henry - SI unit of inductance
• Michael Faraday - he discovered how to make electricity using magnetic fields.
• Galvanometer - It is a instrument to measure current with direction.
• Solenoid - A coil of wire that acts as a magnetic field when an electric current flow through it
• Magnetic Induction - change of magnetic field
• Electromagnetic induction - change the magnetic flux
• Magnetic Flux - is a measure of flow of magnetic field passing through the surface.
• Faraday's law of electromagnetic induction - it states that the average EMF induced in a wire of N loops by changing magnetic
• Lenz's law - it states that an induced current always flows in a direction such that it opposes the change which produced it.
• Flemming's left hand - used for electric motors
• Flemming's right hand - used for electric generator
• Inductance - define as the EMF generated to oppose the change in current at a particular time duration
• Self Inductance - changing current flowing in a coil procudes EMF in the same coil loop
• Mutual Inductance - Changing current flowing through one coil produces EMF to another coil loop
• LC circuits - type of electric circuit which is made up of inductor and a capacitor
• LC oscillatory - it is commonly used in radio frequency circuits