Categories starting with P
Items starting with P
PARTICLE SIZE MEASUREMENT
- Imported slits.
- He-Ne laser with in-built power supply.
- Translucent screen to view the diffraction pattern.
- Diffraction.
- Fresnel diffraction.
- Fraunhofer diffraction
- Uncertainty of location.
- Wave-particale.
PERMEABILITY AND PERMITTIVITY OF AIR EXPERIMENT
- High current power supply.
- High voltage DC power supply.
- Very sensitive coulomb and current balance.
- Diode laser based optical lever.
- Permittivity of air.
- Null Method
- Electrostatic force.
- current balance
- Coulomb law.
- Parallel plate
- Conductor.
Permittivity of Air Experiment
By means of null method this balance measures tiny forces, it possess adjustable counterweight and an optical lever. To measure the repulsive force between parallel current-carrying conductors a pair of straight aluminium rods are given. Attractive force between charged capacitor plates ,a pair of plates are also included. In the electromagnetic experiment sufficient deflection may be caused by means of a current of 10-20A. For returning the balance to its original position, fractional weights are added to a small pan which is attached to the upper conductor rod, thus force between the conductors are measured. The dynamic definition of the Ampere or to determine the permeability of Air may be confirmed by interpretation of the result. Permittivity of the air may be observed by the analogous electrostatic experiment. An indirect estimate of the speed of light may be made from these two values. The whole experiment requires a diode laser & scale for the optical lever, fractional weight set for the current experiment, multimetyer for volts and amps, a 300V variable high voltage source and an AC or Dc current source for 10-20A. A detailed manual is included.
Physics with Vernier Interface Choices
Physics with Vernier has 35 experiments in mechanics, sound, light, electricity, and magnetism. This book has a wide variety of experiments for Motion Detectors, Force Sensors, Light Sensors, Magnetic Field Sensors, Microphones, Current & Voltage Probes, Photogates, Temperature Probes, and Accelerometers.
PHYSICS, CHEMISTRY AND BIOLOGY WITH COMPUTERS
CHEMISTRY WITH VERNIER LAB BOOK
Physics WITH VERNIER LAB BOOK
PLANCK'S CONSTANT
- Inbuilt power supply & photocell.
- Different types of filters and LED.
- Different types of wave length of all filters and LED
- Photoelectric effect.
- Photo cell.
- Work function.
- Planck's constant.
- Photoelectric voltage.
- Photon energy.
PLANCK'S CONSTANT BY Cs PHOTOCELL
- Multipurpose electrometer amplifier.
- Cs photo cell.
- Multipurpose power supply.
- Monochromatic light source may be used in many other experiments also.
- Hexagonal optical bench.
- Photoelectric effect.
- Photo cell.
- Work function.
- Planck's constant.
- Photoelectric voltage.
- Photon energy.
PLANCK'S CONSTANT BY LED
- It is a self contained unit.
- Using LED method instead of photocell & monochromatic light source reduces cost.
- Built - in power supply for Oven (oven ambient to 60°C, resolution 0.1°C).
- Variable voltage source 0 - 2V DC, resolution 1mV.
- Current meter 0-20mA / 2000mA.
- In - built temperature sensor.
- Photoelectric effect.
- Photo cell.
- Work function.
- Planck's constant.
- Photoelectric voltage.
- Photon energy.
PLANETARIUM / EARTH-CENTERED MODEL
The ecliptic and the Zodiacal constellations. How the planets appear to move against the night sky. Use of the Helios outside at night - where should the stars appear in the sky?
Plant Specimen Mount
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Bean Germination, Mounted Specimen
The stages of seed germination in 3D-frozen
in time in these beautiful mounted specimens, encased in clear acrylic. A practical, hands on
way to explore and learn bean germination.
Size:88x88x20mm
PLASMA GLOBES PLS-100
The small Tesla Coil produces an alternating high voltage potential which attracts or repels free electrons. When the electrons collide with the gaseous atoms and molecules inside the globe, the gas particles are ionized creating even more electrons, as well as, positive ions. A plasma is formed. When electrons return to the ionized gas, light is produced. Touching the globe with your finger provides a ground, an addition source or sink of electrons. You can also observe super, neat, wow effects by moving a fluorescent tube or neon light near the plasma globe. They will light up in your hands!
PLUG KEY (ONE- WAY)
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PLUG KEY (ONE- WAY)
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POLARIMETER
It is a kind of instrument for measuring the optical rotation of optically active substances e.g. Sugar. The unit is mounted in a steel box. A 6V bulb present in the base works as a source of light. Light passes through a polarising filter and again through yellow filter to the sample tube. Rotation of the polarised light can be measured by rotatable analyser which is mounted in the top panel with a fixed 0-360° scale. The sample tube may be taken out for sample keeping purpose. Suppled with polarisers, yellow filter and sample tube.