School of Physics Lecture Demonstration Manual

Forces & fields from currents

Ea-1 Force on a Current Carrying Conductor in a Magnetic Field

Published: Tuesday 14 March 2006

To demonstrate that a current carrying conductor in a magnetic field experiences a force given by dF= I dl X B

Ea-2 Barlow's Wheel

Published: Tuesday 14 March 2006

To demonstrate a simple electric motor.

Ea-3 Faraday's Rotating Wire

Published: Tuesday 14 March 2006

To demonstrate the force on a current carrying conductor in a magnetic field by way of Faraday's original rotating wire experiment.

Ea-4 Magnetic Field at the Centre of Coil

Published: Tuesday 14 March 2006

To Demostrate the properties of a magnetic field in a coil of wire.

Ea-5 The Electromagnetic Pump

Published: Tuesday 14 March 2006

To demonstrate the magnetic force on an electric current (in a fluid) using a simple electromagnetic pump.

Ea-6 The Current Balance (Including the Kelvin Balance)

Published: Tuesday 14 March 2006

To demonstrate the current balance; a device for the absolute measurement of current.

Ea-7 The Solenoid

Published: Tuesday 14 March 2006

To demonstrate the magnetic field due to a solenoid.

Ea-8 The Rogowski Coil

Published: Tuesday 14 March 2006

To demonstrate Ampere's Circuital Law.

Ea-9 Attraction and Repulsion Currents

Published: Thursday 25 November 2010

To demonstrate that currents will attract or repel depending whether they are parallel or anti-parallel.

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