COMPLETE EXPERIMENTS ON ELECTRICITY AND MAGNETISM  

Objective: Investigation of how the voltage across a capacitor changes over time when the capacitor is charging or discharging In a DC circuit, current only flows through a capacitor at the point in time when the power is turned on or off ... еще

Objective: Determine the charging and discharging times The discharge curve of a capacitor is to be derived by measuring the times taken for certain voltages to be reached to obtain sample points. The charging curve is to be measured ... еще

Objective: Determine the impedance of a capacitor as a function of capacitance and frequency Any change in voltage across a capacitor gives rise to a flow of current through the component. If an AC voltage is applied, alternating current ... еще

Objective: Investigation of how the current through a coil changes over time when the DC supply is turned on and off The behaviour of a coil in a DC circuit changes as soon as the DC supply is turned on or off. The change in current is delayed ... еще

Objective: Determine inductive impedance as a function of inductance and frequency Any change in the current through a coil induces a voltage. If an alternating current flows, an AC voltage will be induced, which is shifted in phase with ... еще

Objective: Determine the AC resistance in a circuit with capacitive and resistive loads In AC circuits, not only ohmic resistance needs to be taken into account but also the resistance due to capacitive loads. The combination of the two ... еще

Objective: Determine the AC resistance in a circuit with inductive and resistive loads In AC circuits, not only ohmic resistance needs to be taken into account but also the resistance due to inductive loads. The combination of the two may ... еще

Objective: Determining impedance in a circuit with an inductive and a capacitive reactance AC circuits with inductive and capacitive reactances show resonant behaviour. At the resonant frequency, the impedance of a series connection of an ... еще

Objective: Demonstrate and investigate the phenomena of interference, diffraction and polarisation using microwaves Using microwaves, many experiments can be conducted on interference, diffraction and polarisation, as an aid to understanding ... еще

ЦЕЛЬ ОПЫТА Регистрация характеристики электровакуумного диода КРАТКОЕ ОПИСАНИЕ В электровакуумном диоде свободные электроны создают электрический ток между катодом накала и анодом, если между катодом и анодом приложить положительное н ... еще

At sufficiently high positive voltage between the cathode and anode (anode voltage), free electrons from the cathode can pass through the grid to reach the anode. The anode current generated in this way can be modulated by varying another ... еще

•  Linear propagation of cathode rays / of electron beams •  Electrostatic charging effects •  Electron deflection by a magnetic field Straight-line propagation of electrons in the absence of ... еще

•  Introduction to electron optics Cathode rays and deflecting fields can be used to magnify shadow images in a manner analogous to an optical lens system. With the help of this supplement, the experiment: Maltese-Cross ... еще

•  Observing the thermionic emission of charge-carriers from a heated cathode. •  Determining the polarity of the emitted charge-carriers. •  Estimating the specific charge (chargeto-mass ratio) of ... еще

Electrons in a fine-beam tube are deflected into a circular path by a uniform magnetic field. The tube contains neon gas at a precisely defined pressure so that gas atoms become ionised by collision with electrons along the path thus ... еще

•  Investigating the deflection of an electron beam in an electric field. •  Investigating the deflection of an electron beam in a magnetic field. •  Calibrating the frequency control of the sawtooth ... еще

In the experiment, two identical current-carrying coils are placed outside the Braun tube, and the deflection of the electron beam in the magnetic fields of the coils is observed on the tube’s fluorescent screen as shifts of the ... еще

Objective: Messung der relevanten Kennlinien eines npn-Transistors A bipolar transistor is an electronic component composed of three alternating p-doped and n-doped semiconductor layers called the base, the collector and the emitter. Depending ... еще

Objective: Measure the characteristics of a field effect transistor A field effect transistor (FET) is a semiconductor component in which electric current passes through a channel and is controlled by an electric field acting perpendicular ... еще