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FARADAY EFFECT EXPERIMENT with He-Ne laser

Item Code : SK058

Principle and Working:

If a transparent isotropic material is placed in a strong magnetic field and linearly polarized light is transmitted in the direction of the magnetic field, the plane of polarization of linearly polarized light rotates by an angle.

ΔØ=V.L.B


The angle of rotation (Ø) of plane polarized light is proportional to the length (L), magnetic field (B) and Verdet’s constant (V).

  • All electrical connections are made using 4mm safety plugs & sockets.
  • Compact & portable electromagnet.
  • High current DC power supply with safety features like short circuit protection, over heat protection etc.
  • Saddle can hold rod from 8 to 15mm.
  • Heavy, rigid and stable Optical bench.
  • Height and level adjustment screws
  • Analyser/Polayser with 0 ± 90° graduation.
  • He-Ne laser with built-in power supply.
  • Green diode laser with less power consumption.
  • Observing the rotation of the polarization plane when polarized monochromatic light passes through flint glass under influence of a magnetic field.
  • Determining Verdet’s constant from the relation between rotation angle and magnetic flux.
  • Flint Glass : DEDF glass, size 15x15x15mm.
  • Power supply : 0-30V DC, 10A, 3½ Display LED.
  • Digital Gauss meter : Range 2KG & 20 KG, Resolution 1G & 10G, Sensor In As.
  • Electromagnet coil : 500 T coil, 7Amp (Max.), 18SWG, Cu.
  • Electromagnet Core : Ferromagnetic, 40x40mm cross section.
  • Optical bench : Length – 1 mtr. with Scale, 4 point levelling. Material Aluminium or MS.
  • Transversal slider : 25 – 0 – 25mm, LC 0.01mm.
  • Fixed slider : Base width 50mm, Height 115mm.
  • Laser : He-Ne Laser (632mm), Power 2 mW, Beam spot 2.5mm, current 4mA ~ 6mA, size 300 x 62 x 82mm.
S. No.Item NameSK058
1Transverse Slider1
2Fixed Slider3
3Main Slider with U Core1
4Fixed Slider Large1
5Optical Bench with Levelling1
6High Current Safety Wire (black)1
7High Current Safety Wire (red)1
8Object Screen 15x15cm1
9Coil 500 Turns (right)1
10Coil 500 Turns (left)1
11Probe Holder1
12Flint Glass DEDF (15x15x15mm)1
13Digital Multimeter 4½ Digits1
14Power Supply 40V, 10AMP1
15Digital Gaussmeter1
16Cylindrical Base1
17Polarizer/Analyser1
18Pin Hole Photo Detector1
19Pole Piece with hole2
20Clamp Assembly2
21Flexible Plug Lead 100mm (Black)1
22Flexible Plug Lead 100mm (Red)1
23Flexible Plug Lead 50mm (Yellow)1
24Laser He-Ne1

Note : The standard supply is the Hexagonal Optical Bench (MS). To request the Triangle Optical Bench (Aluminium Extrusion),please specify in your request.

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