Cidepe

Function

Intended for the study of: Electricity, Electrodynamics. The electric current as a function of voltage and electrical resistance in a conductor, Ohm's first law. The quantity of electrical resistance. Factors influencing the electrical resistance of a conductor. Measuring voltages and currents. Table and graph. The electrical resistance offered by a conductor. Ohm's first law and the electrical resistance offered by an ohmic conductor. The relationship between the three main electrical quantities: current, voltage, and electrical resistance. Electrical resistance as a function of the length and area of the conductor, Ohm's second law. The dependence of the electrical resistance of a homogeneous conductor on its length. The dependence of the electrical resistance of a homogeneous conductor on the area of its cross-section. The resistivity of the material from which the conductor is made. The wire bridge and the Wheatstone bridge, the single-reading method. Measuring and adjusting circuit voltage. The Wheatstone bridge and the wire bridge. A process that compares electrical resistances. Balancing the wire bridge, observing the reading on the ammeter. Determining the lengths A and B of the resistive wire in the equilibrium condition of the bridge. The expression that allows determining the unknown resistance using the wire bridge in the equilibrium condition. Determining the value of the resistance Rx with the Wheatstone bridge. Calculation of the percentage relative error, etc.