Электричество

 
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High-current transformer

Tasks
  1. Bring a nail to glow and furthermore to melt by the secondary current.
  2. Bring a piece of Wood's metal to melt.
 
Детали

Продукт No: P0506100

Electrostatic induction with an electroscope

Principle

The students apply their knowledge of electrostatic induction to the electroscope. They recognize why a pointer deflection can appear even as a charged object approaches the electroscope. They can explain the series of events in the electroscope.

Benefits

  • Quick and easy ...
 
Детали

Продукт No: P1084700

Conservation of momentum in elastic collisions with the demonstration track and the timer 4-4

Principle

An impulse acting on an object is defined as the change in momentum caused by a force Fover a short period of time t. The momentum p is defined as the product of force and time. It is conserved, provided that there is no friction and that the collision is elastic. This ...

 
Детали

Продукт No: P1199605

Waltenhofen Pendulum

Principle

When a massive body made of conductive material moves through a magnetic field, eddy currents are induced. According to Lenz's law, the body is then subjected to a force which is opposed to the cause of the eddy currents, i.e. the motion of the pendulum. The braking action increases ...

 
Детали

Продукт No: P1298500

Rotary motion by turbulent flow - principle of the

Principle

A metal disc rotates on a bearing-mounted shaft in the presence to two out-of-phase alternating magnetic fields. Eddy currents are induced in the disc and forces are imparted onto this current-carrying conductor. Out-of-phase alternating fields also cause the rotational movement ...

 
Детали

Продукт No: P1298700

Ohm's law with Cobra4

Principle

The connection between electrical voltage and the resulting current is measured with various test resistors.The quotient of voltage and current is a constant value that characterises the component.

Benefits

  • Flexible experimenting thanks to wireless data transmission
  • No ...
 
Детали

Продукт No: P1330360

Generation of an alternating voltage, rectification and smoothing

Principle

An alternating voltage is induced in a coil in the (alternating) field of a periodically moving magnet. The characteristic of a diode to allow electric current only to pass in one direction is used to rectify the induced alternating voltage. A capacitor that is connected in parallel ...

 
Детали

Продукт No: P1331360

Generation of an alternating voltage with SMARTsense smoothing

 
Детали

Продукт No: P1331369

The bimetallic switch

Principle

A bi-metal strip comprises two metal strips which are laminated together and have different thermal expansion coefficients. When warmed the strip flexes toward the side with the lower expansion coefficient. In so doing, it can act as a switch in the electric circuit.

...
 
Детали

Продукт No: P1352400

Conversion of electrical energy into mechanical energy

Principle

A motor that raises a load, i.e. converts electrical energy into mechanical energy, is a familiar everyday sight. The special feature of this set-up is that it can be used to generate electrical energy again directly from the descending weight. That electrical energy illuminates a ...

 
Детали

Продукт No: P1353700

Self-induction when switching a circuit on

Principle

A coil is located in a DC circuit. When the circuit is closed, the magnetic field of the coil builds up and generates a self-induction voltage which counteracts the increase.  An incandescent lamp in the circuit lights up only gradually.

 
Детали

Продукт No: P1356200

Solar cells

 
Детали

Продукт No: P1357700

Resistance of wires - dependence on the length and cross-

Principle

The resistance of a short thick wire is different to that of a long thin one.

Benefits

  • Flexible experimenting thanks to wireless data transmission
  • No additional cable connections between the building blocks needed - clear arranged and quick setup
  • Contact safety due to ...
 
Детали

Продукт No: P1372560

Resistance of wires - dependence on the length and cross-

 
Детали

Продукт No: P1372568

Resistance of wires with SMARTsensece on the length and cross-

 
Детали

Продукт No: P1372569

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X-ray expert unit

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