Vaz electromagnetism set, projectable, basic 1
Function
Intended for experimental study, physics laboratory and carrying out physics experiments on: Electromagnetism. Electric current produces magnetic effects. The magnetic field. What is meant by a magnet. Magnetism, magnetite and the compass. Building a compass. Building a closed electrical circuit. Observing the magnetic effect around a straight conductor, traversed by an electric current. The Oersted experiment and electromagnetism, projectable table and inverter switch. The compass rose and its use. Observing the magnetic effect around a straight conductor traversed by an electric current. The right-hand rule that relates the orientation of the lines of magnetic induction with the direction of the electric current that circulates in the straight conductor. The Faraday-Lenz law of induction, electromagnetic phenomena. The variation of the magnetic flux over a closed conductor and the induced current. Faraday's law of electromagnetic induction. Lenz's law, or Faraday-Lenz, of electromagnetic induction. The right-hand rule that relates the direction of the electric current to the direction of the magnetic induction vector around the wire of a coil. The electric current, electric charges in motion, and their magnetic induction field. The Faraday-Lenz-Neumann law for electromagnetic induction. Biot-Savart law, electromagnetic phenomena. Remembering the lines of magnetic force, their properties and what they tell us about the magnetic field vector. Mapping the lines of magnetic induction generated by an electric current that flows in the same direction in two parallel and straight conductors. Applying the Biot-Savart law. Magnetic induction around parallel circular coils, traversed by electric current. What is meant by a coil in electromagnetism. The right-hand rule that relates the direction of the electric current to the direction of the magnetic induction vector in a spiral conductor. Mapping the lines of magnetic induction generated by an electric current that flows in a spiral conductor. Applying the right-hand rule to coils. Calculating the value of B inside a circular coil that conducts an electric current. Magnetic induction inside a solenoid traversed by an electric current. The solenoid, a temporary magnet and the mathematical expression for calculating B inside it. Applying the right-hand rule to solenoids. Temporary magnet, electromagnet, ferromagnetic material. Temporary magnets. Building temporary magnets. Influence of the direction of the electric current that circulates in the coil on the position of its poles. The location of the magnetic poles and the geographic poles of planet Earth. Changing the environment inside the coil changes the intensity of the magnetic field induced by the electric current. The electric voltage transformer. What is meant by an ideal electric transformer. The primary, the core and the secondary in an electric voltage transformer. Magnetic permeability. Measuring the electric voltages in the primary and secondary of the transformer. The relationship between the ratio of the primary and secondary voltages and the ratio of the number of turns in an ideal transformer. Determining the relationship between the ratio of the primary and secondary voltages and the ratio of the number of turns in a transformer built without load. Determining the relationship between the ratio of the primary and secondary voltages and the ratio of the number of turns in a transformer built with load. The electromagnet, a temporary magnet and magnetic permeability. The closed electrical circuit with the electromagnet. The operation of the telegraph. The operation of the electric bell, etc. Note: Does not include power supplies, multimeter, on-off switch and wire connections.
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Key Experiments
- » Electric current produces magnetic effects. - 1082.128_4
- » Oersted's experiment and electromagnetism, folding table, inverter switch. - 1082.160
- » Faraday's and Lenz's law of induction, electromagnetic phenomena. - 1082.128_1
- » Biot-Savart law, electromagnetic phenomena. - 1082.164
- » Magnetic induction around parallel circular coils carrying an electric current. - 1082.168
- » Magnetic induction inside a solenoid carrying an electric current. - 1082.172
- » Temporary magnet, electromagnet, ferromagnetic material. - 1082.176
- » The electrical voltage transformer. - 1082.176_3
- » The electromagnet, a temporary magnet and magnetic permeability. - 1082.176_1
- » How the telegraph works. - 1082.144
- » The operation of the electric bell. - 1082.148