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Principle
In households, electrical devices are often connected in parallel to different sockets of the same electric circuit. The total current and the total resistance of the circuit can be predicted from the partial resistances.
Tasks
Various components in a circuit can be connected in series. The total resistance and the total current can be calculated from the partial resistances of the components.
Rectifying circuits with a single diode can only utilize one half wave of alternating current. The bridge rectifier solves this problem by having four diodes connected such that a current path is open for each halfwave.
How does an equalizer function? Equalizers are used in sound engineering to improve tone in stereo systems and in audio computer software, for example. Their basic effect is to weaken certain frequencies of a signal and so to optimize the acoustic con ...
An oscillating circuit consists mainly of a coil and a capacitor. In this experiment, a close examination of the behaviour of the voltage and the current in an oscillating circuit is to be undertaken and the intrinsic angular frequency is to be deter ...
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.
The Wheatstone bridge circuit is used to determine unknown resistances. The total resistance of resistors connected in parallel and in series is measured.
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.
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 ...
The current and voltage of parallel and series-tuned circuits are investigated as a function of frequency. Q-factor and band-width are determined.
Determination of the frequency performance of a
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