Occurrence Cause Induction emf

Occurrence Cause Induction emf
When the magnetic north pole rod driven into the coil, the number of line styles contained in the magnetic coils multiply. Increasing the number of lines of force raises emf induced at the ends of the coil. Induction emf generated causing an electric current to flow to move the needle galvanometer. Direction of induced current can be determined by watching the direction the magnetic field caused. When the magnet entrance, lines of force in the coil increases. As a result the magnetic field induced flow results are reducing lines that style. Thus, the coil end is the north pole so that the direction of induced current as shown Figure 12.1.a (remember again how to determine the poles of the solenoid).

When the north pole of bar magnet is moved out of the coil, the number of magnetic lines of force contained in the coil is reduced. Decreasing the number of lines of force also creates an emf induced in the coil ends. Induction emf generated causing an electric current to flow and move the needle galvanometer. Similarly, when the bar magnet into the coil. when the magnetic lines of force in the coil exit is reduced. As a result the magnetic field induced currents are the result of adding the line that style. Thus, the tip, the coil was a south pole, so that the induced current direction as shown Fig 12.1.b. When the north pole of bar magnet is in the coil, the number of lines of magnetic force in the coil does not change (fixed). Since the number of lines of force remain, then at the ends of the coil does not occur emf induction. As a result, there is no electricity and no moving needle galvanometer. So, emf induction can occur at both ends of the coil if the coil there is a change in the number of lines of magnetic force (magnetic flux). Emf arising from a change in the number of lines of magnetic force is called emf induced in the coil. An electric current induced emf generated is called induced current. Occurrence of events and induction emf induced currents due to changes in the number of lines of magnetic force is called electromagnetic induction. Try to specify how to treat the magnet and coil for induction emf arises?
2. Factors that Influence the big Actually Induction of small emf emf induction can be seen in the size of the deviation angle galvanometer needle. If the angle deviation of the galvanometer needle, induced emf and induced current generated large. How do I enlarge the emf induced? There are three factors that influence the induction emf, namely: a. magnet movement speed or velocity changes in the number of lines of magnetic force (magnetic flux), b. winding number, c. magnetic field
Exercise