Cidepe

Function

Intended for experimental study, physics laboratory work, and conducting 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 carrying an electric current. Oersted's experiment and electromagnetism. The magnetic field. What is meant by a magnet. Magnetism, magnetite, and the compass. The compass rose and its use. The compass. The right-hand rule, which relates the orientation of magnetic induction lines to the direction of the electric current flowing in the straight conductor. Faraday's and Lenz's laws of induction, electromagnetic phenomena. The variation of magnetic flux through a closed conductor and the induced current. Faraday's law of electromagnetic induction. Lenz's law, or Faraday-Lenz law, of electromagnetic induction. The right-hand rule, which relates the direction of the magnetic field vector inside a source to the direction of the electric current it carries. Electric current, moving electric charges, and their magnetic induction field. Faraday-Lenz-Neumann's law for electromagnetic induction. The operation of the telegraph. The operation of an electric doorbell. Biot-Savart's law, electromagnetic phenomena. Reviewing magnetic field lines, their properties, and what they tell us about the magnetic field vector. Mapping the magnetic induction lines generated by an electric current flowing in the same direction in two parallel and straight conductors. Applying Biot-Savart's law. Magnetic induction around parallel circular loops carrying electric current. What is meant by a loop in electromagnetism. The right-hand rule, which relates the direction of the magnetic field vector inside a source to the direction of the electric current it carries. Mapping the magnetic induction lines generated by an electric current in a spiral conductor. Applying the right-hand rule to coils. Calculating the value of B inside a circular loop carrying an electric current. Magnetic induction inside a solenoid carrying 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. The influence of the direction of the electric current circulating in the coil on the position of its magnetic poles. The location of the magnetic poles and the geographic poles of planet Earth. Changing the medium inside the coil alters the intensity of the magnetic field induced by the electric current. The electromagnet, a temporary magnet, and magnetic permeability. Building a closed electrical circuit with the electromagnet. The voltage transformer. What is meant by an ideal electrical transformer. The primary, the core, and the secondary in a voltage transformer. Magnetic permeability. Measuring the electrical voltages in the primary and secondary windings of a 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 a 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 a load. The efficiency of a transformer, etc.