College Physics Electromagnetism

Product Details:

Experiments:

• Exp-1 To measure the spatial distribution of the magnetic field between a pair of identical coils in helmholtz arrangement.
• Exp-2 To investigate the spacing between coils at which magnetic field is uniform and to measure its spatial distribution.
• Exp-3 To demonstrate the superposition of the magnetic fields of the two individual coils.

Salient Features :

• Digital gaussmeter with axial probe to measure magnetic field.
• Distance between coils is adjusted in U channel bench.
• Easy & simple approach.
• Electrical safety tested.

Principle and Working:
A helmholtz arrangement consists of a pair of identical coils placed symmetrically along a common axis. A fairly uniform magnetic field can be produced in this setup when they are separated by a distance equal to their radius and having equal currents in the same direction flowing through them.

In the present setup, the spatial distribution of the magnetic field of a pair of identical coils in helmholtz arrangement and superposition of the individual fields by the coils is investigated using a digital gaussmeter with axial probe.

Product Details:

Experiments:

• Exp-1 To study the magnetic field of a circular conductor as a function of the current.
• Exp-2 To study the magnetic field of a circular conductor as a function of distance from the axis of the conductor.
• Exp-3 To study the magnetic field as a function of loop radius.

Salient Features :

• Specially designed hexagonal optical bench with locking arrangement for precise positioning.
• Smooth motion of uprights.
• Circular loop with different radii.
• Magnetic field measurement with axial probe.
• High current power supply.
• Electrical safety tested.

Product Details:

Experiments:

• Exp-1 To demonstrate the Lenz’s law and effects of electromagnetically induced currents.

Unique Characteristics:

• Activation of the circuit by solenoid insertion and thus provides overcurrent protection.
• Confirmation of activation by voice message.
• Necessary instruction and precautions are displayed on the unit.
• IR Remote for safe launching.
• Separate indication LED for Power, Activation Status, Remote Pulse and Launch Pulse.

Ring launcher demonstrates the Lenz’s law and effects of electromagnetically induced currents in a unique setup.
An iron core placed in a solenoid. The ring fits over the coil at some height. When we press launch button on control panel to energize the coil, a large magnetic induction builds-up on the axis of coil, generating oppositely directed induced current in the ring. The two oppositely directed inductions repel, aluminium ring shoots up-to several in air and feet. No effect is seen when using aluminium slit or acrylic ring.
Transformer principle observed with coil of wire having low voltage lamp, which lights briefly. Overheating of coil is prevented by automatic one-shot timing feature.

Product Details:

Experiments:

• Exp-1 To study Biot-Savart’s law.
• Exp-2 To study the magnetic field along the axis of a current carrying multiturn coil.
• Exp-3 To study the dependancy of magnetic field on coil diameter and number of turns.

Salient Features :

• Modular approach.
• Multipurpse power supply.
• Multiturn coils of various diameters.
• Magnetic field measurement with axial probe.
• Electrical safety tested.
• Experiment can be performed at low current.

Principle and Working :A current carrying coil produces a magnetic field along its axis which is defined by Biot Savart’s law.
In the present setup, the study of magnetic field along the axis is investigated with coils having different dimensions and turns. The magnetic field is measured using a axial hall probe and digital gaussmeter.