- #Class 12 physics practical file for free
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CdS cells rely on the materials ability to vary its resistance according to the amount of light striking the cell.Cadmium sulphide track The light sensitive part of the LDR is a wavy track of cadmium sulphide. When light doesnt fall on the LDR the LED will glow.Įxplanation Construction Of LDR :It is made up of high resistance semiconductor. Observations When light falls on the LDR the LED will not glow. LDR resistance decreases with increasing light level.Ĭircuit Diagram & Component UsedComponents : 1.A transistor(n-pn) 2.A LED 3.Battery 4.Resistor 10k, 1k 5.Light Dependent6V 0.06A BC 108 or ZTX 300 6V PrincipleThe light dependent resistor is a resistor whose resistance value depends upon the intensity of light falling on it. ObjectDemonstration of working of light dependent resistor using simple circuit like automatic car parking light / automatic switches.vAIBHAv Direction of induced current always opposes the cause by which it is produced. When magnetic flux linked with coil increases then galvanometer shows deflection in one direction when it decreases it shows deflection in opposite direction.vAIBHAv 6Ĭonclusion Whenever there is change in Magnetic Flux linked with the coil current is induced in coil. induced when magnetic flux linked with coil be changed. When magnet moves away magnetic field lines passing through coil decreases. When there is relative motion between the magnet & coil & magnet is moved towards the coil the magnetic lines passing through coil increases. the magnetic flux linked with coil is constant. When magnet is kept stationary & coil is moved towards or away from magnet, then there is a deflection in the galvanometer.vAIBHAv 5ĮxplanationWhen there is no relative motion between the magnet & the coil, the magnetic lines of force passing through the coil is definite i.e. When Southpole of magnet faces the coil & the magnet is moved towards or away from the coil, the galvanometer again shows deflection but in opposite direction.S NG G When speed of magnet is increased the deflection is increased.S NG When magnet is stopped the deflection in galvanometer becomes zero. When North pole of magnet is taken away from the coil rapidly, the galvanometer shows deflection but in opposite direction. When speed of magnet is increased the deflection is increased. S NG When North pole of magnet is moved rapidly towards the coil, the galvanometer shows deflection. Observation When a bar magnet is placed near the coil no deflection is observed in galvanometer. The galvanometer shows deflection.vAIBHAv 3 about 250 turns 3.Direction of induced Wooden Stand current always A bar magnet moved in oppose the cause by & out of a coil produces which induced current in the it is il in both the cases. is directly proportional G to rate of change of Clamp Coil of magnetic flux. Principle1.Whenever magnetic S flux linked with coil Bar Magnet be changed the e.m.f.
#Class 12 physics practical file download
You can easily download Optical Fibre - Class 12 Physics Investigatory Project Report by clicking the link below.ObjectDemonstration of induced current in a coil as bar magnet is moved inside the coil.
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download full Key topics presented in Optical Fibre - Class 12 Physics Investigatory Project Report:
#Class 12 physics practical file for free
I have attached the complete project report for your reference and you can download it for free here.Ĭlass 12th Physics Projects free.
#Class 12 physics practical file pdf
12th Physics Notes Pdf Optical Fiber and its Applications'. Huge List of Physics Project for Class 12 CBSE -12th or XII, Physics Projects,2015 Science Fair Projects for Physics Models, Astronomy Project Ideas, Experiments, Exhibition Topics Free Download, cbse high school college expo topics, physical science projects for Kids and also for Middle school, Elementary School for class 5th Grade,6th,7th,8th,9th 10th,11th, 12th Grade and High School, MSC. Documentos similares a Physics Project File for Class 12th. Resulting free electron conduct electricity, V = thereby lowering resistance. The topic of this project is 'ġ2 class Physics investigatory project on transformers.docx. Joined Messages 311 Reaction score 26 Points 28 Location Kalyan-Dombivali Friends, Here's a great Physics Investigatory Project for Class 12 students.