Product details

Faraday effect

Faraday effect

Item no.: P2260100

Experiment Type: Teacher Experiment, Laboratory Experiment

Difficulty Expenditure of Time print
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  • Scope of Supply
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Principle

The angle of rotation of the polarisation- plane of plane polarised light through a flint glass rod is found to be a linear function of the product of the mean flux-densitiy and the length of the optical medium. The factor of proportionally, called Verdet's constant, is investigated as a function of the wavelength and the optical medium.

Benefits

  • experience that magnetic fields can influence light by changing ist polarization properties
  • learn how wavelength and the optical medium influence the effect of the magnetic field
  • discover a bridge between the fields of optics and electromagnetism

Tasks

  1. To determine the magnetic flux-densitiy between the pole pieces using the axial Hall probe of the teslameter for different coil currents. The mean flux-density is calculated by numerical integration and the ratio maximum flux-density over mean flux-density established.
  2. To measure the maximum flux- density as a function of the coil current and to establish the relationship between mean flux-density and coil current anticipating that the ratio found under 1. remains constant.
  3. To determine the angle of rotation as a function of the mean fluxdensity using different colour filters. To calculate the corresponding Verdet's constant in each case.
  4. To evaluate Verdet's constant as a function of the wavelength.

What you can learn about

  • Electromagnetic field interaction
  • Electron oscillation
  • Electromagnetism
  • Polarisation
  • Verdet's constant
  • Hall effect
Device Name Item no. Qty
Lens holder 08012-00 1,00
Lens, mounted, f +150 mm 08022-01 1,00
Object holder, 5x5 cm 08041-00 1,00
Table top on rod 08060-00 1,00
Screen, translucent, 250x250 mm 08064-00 1,00
Housing for experiment lamp 08129-01 1,00
Holder G 6.35 for 50/100W halogen lamp 08129-04 1,00
Halogen lamp, 12 V/50 W 08129-06 1,00
Double condenser, f 60 mm 08137-00 1,00
Optical bench expert, l = 1000 mm 08282-00 1,00
Base for optical bench expert, adjustable 08284-00 2,00
Slide mount for optical bench expert, h = 30 mm 08286-01 2,00
Slide mount for optical bench expert, h = 80 mm 08286-02 5,00
Colour filter, purple, 360...460 nm, 16% @ 440 nm 08411-00 1,00
Colour filter, blue-green, 400...560 nm, 63% @ 505 nm 08413-00 1,00
Colour filter, light green, 480...570 nm, 45% @ 525 nm 08414-00 1,00
Colour filter, light yellow, 560...630 nm, 19% @ 580 nm 08415-00 1,00
Colour filter, light red, >600 nm, 93% @ 595 nm 08416-00 1,00
Polarizing filter with vernier 08611-00 2,00
PHYWE variable transformator DC: 0...20 V, 12 A / AC: 0...25 V, 12 A 13531-93 1,00
Hall probe, axial 13610-01 1,00
Teslameter, digital 13610-93 1,00
Universal clamp 37715-00 1,00
Commutator switch 06034-03 1,00
Pole pieces drilled, 1 pair 06495-00 1,00
Glass rod for Faraday effect, 06496-00 1,00
Iron core, U-shaped, laminated electric steel 06501-00 1,00
Coil, 600 turns 06514-01 2,00
Ammeter 1mA...3 A 07036-00 1,00
Connecting cord, 32 A, 750 mm, red 07362-01 3,00
Connecting cord, 32 A, 750 mm, blue 07362-04 3,00
Document     Filesize
p2260100e.pdf Experiment guide, English 420.54 KB

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