Description

TANGENT GALVANOMETER MINI ROUND 4 COILS & COMPASS

This robust IEC design is manufactured from non-magnetic materials. It is fully assembled and permits experiments relating to electric currents in a coil producing magnetic fields. Using the earth’s magnetic field as one of the fields, this instrument proves that magnetic fields add as vectors and strength of a field in a coil is proportional to both the current flowing through the coil and the number of turns in the coil. This is often called “Ampere Turns”.

Includes:

• 1 pce mini Tangent Galvanometer round format. Complete with 20 turn coil tapped at 5, 10, 15 turns. Use about 2V.DC. for max. current of 1 amp.
• 1 pce magnetic compass fixed to platform.

Equipment Required:

The best power supply for the best results in these experiments is a “Constant Current” power supply where the current can be set to any current and the setting does not alter when the coil changes its resistance due to warming. However, if a Constant Current power source is not available, a normal adjustable DC power supply can be used together with a sliding rheostat in series with a 0-5A DC ammeter to adjust and monitor the current through the coil. It will be necessary to adjust the rheostat as the coil warms to bring the current exactly back to the desired value before making any measurements.