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Principle
An alternating current circuit that consists of a coil and a capacitor switched in parallel to each other is called a parallel-resonant circuit. As is known from previous experiments, there is a phase shift between the current and the voltage at a co ...
An alternating current circuit that consists of a coil and a capacitor switched in series to each other is called a series resonant circuit. As is known from previous experiments, there is a phase shift between the current and the voltage at a coil or ...
The resistances of various DC conductors are determined by recording the current / voltage characteristic. The resistivity of metal rods and the contact resistance of connecting cords are calculated.
Tasks
The electrical resistance of pure metals increases with increasing temperature. The correlation between voltage and current is to be measured using temperature-in- and dependent resistors. Determine the work and power of an incandescent bulb.
The Wheatstone bridge circuit is used to determine unknown resistances. The total resistance of resistors connected in parallel and in series is measured.
The temperature dependence of an electrical parameter (e.g. resistance, conducting-state voltage, blocking voltage) of different components is determined. To do this, the immersion probe set is immersed in a water bath and the resistance is measured at regular tempe ...
The temperature dependence of an electrical parameter (e.g. resistance, conducting-state voltage, blocking voltage) of different components is determined. To do this, the immersion probe set is immersed in a water bath and the resistance is measured at regu ...
First Kirchhoff's laws are verified by measuring current, voltage and resistance in series and parallel circuits. The Wheatstone bridge circuit is used to determine unknown resistances more precisely.
Determine the current strength flowing through a semi-conducting diode. Determine the collector current with the collector voltage for various values of the base current intensity.
A capacitor is charged by way of a resistor. The current is measured as a function of time and the effects of capacitance, resistance and the voltage applied are determined.
The electric constant is determined by measuring the charge of a plate capacitor to which a voltage is applied. The dielectric constant is determined in the same way, with plastic or glass filling the space between the plates.
To measure the course of current strength and voltage in a capacitance/inductivity in the instant of switching on. The capacitance/inductivity is determined from the measurement curve.
An alternating voltage is applied to one of two coils (primary coil) which are located on a common iron core. The voltage induced in the second coil (secondary coil) and the current flowing in it are investigated as functions of the number of turns in the coils and ...
A magnetic field of variable frequency and varying strength is produced in a long coil. The voltages induced across thin coils which are pushed into the long coil are determined as a function of frequency, number of turns, diameter and field strength.
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