Tuesday, 24 June 2014 15:47
K2-65: INDUCTION AND CAPACITOR FLASHLIGHT
Additional Info
- ID Code: K2-65
- Purpose: Demonstrate a weird but high-tech method for constructing a flashlight.
- Description: This flashlight has a low voltage LED lamp but uses no battery. Instead, the power is generated by moving the flashlight back and forth along its length, causing a strong rare-earth magnet to pass back and forth through a coil. A low voltage AC current is created by this action. This current then passes through a bridge rectifier and charges a high-tech capacitor, which is used to power the light.
- Availability: Available
- Loc codes: K2
Published in
K2 Electromagnetic Induction
Tagged under
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K2-01 EARTH INDUCTOR
Induces an emf by moving a coil through Earth's magnetic field
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K2-02 INDUCTION IN A SINGLE WIRE
Demonstrates magnetic induction
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K2-03 FARADAY'S EXPERIMENT ON INDUCTION
Demonstrates the induction between two coils
Read More
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K2-04 FARADAY'S EXPERIMENT - EME SET - 20, 40, 80 TURN COILS
Shows that the induced current is proportional to the number of turns in the secondary coil
Read More
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K2-05: FARADAY'S EXPERIMENT - CONCENTRIC COILS
Demonstrate mutual induction Read More
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K2-11: SELF-INDUCTION
Demonstrate self-induction Read More
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K2-12: SELF-INDUCTION - DEMOUNTABLE TRANSFORMER
Demonstrate back-EMF in an inductor Read More
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K2-21: RUHMKORFF INDUCTION COIL
Demonstrate induction of a very high voltage using a small voltage source Read More
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K2-22 INDUCTION COIL WITH LIGHT BULB
Demonstrates magnetic induction with 110 VAC Read More
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K2-24: MUTUAL INDUCTION
Demonstrate mutual induction Read More
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K2-25: MUTUAL INDUCTION - DEMOUNTABLE TRANSFORMER
Demonstrate mutual induction and to show the effect of various core materials Read More
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K2-26: MUTUAL INDUCTANCE STANDARD
Demonstrate the standard for mutual inductance Read More
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K2-27: MUTUAL INDUCTION - M12 eq M21 MEASUREMENT
Demonstrate that the mutual inductance between two coils is independent of which one is the primary Read More
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K2-28: DEMOUNTABLE TRANSFORMER - 10 KV ARC
Demonstrate that a large voltage increase is attainable using a transformer Read More
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K2-29: COIL AND MAGNET WITH LED SENSOR
Demonstrate that the sign of the induced voltage depends on the direction of the field as well as whether the… Read More
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K2-40: MAGNETIC ACCELERATOR
Demonstrate magnetic potential energy Read More
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K2-41: LENZ'S LAW - ROLLING RODS
Demonstrate eddy currents and Lenz's law
Read More
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K2-42 LENZ'S LAW - MAGNET IN ALUMINUM TUBE
Demonstrates Lenz's law
Read More
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K2-43: LENZ'S LAW - PERMANENT MAGNET AND COILS
Demonstrates Lenz's law
Read More
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K2-44 EDDY CURRENT PENDULUM
Shows the damping of pendula due to eddy currents
Read More
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K2-45: EDDY CURRENTS - MAGNET AND SOFT DRINK CAN
Demonstrate eddy currents and Lenz's law Read More
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K2-46: MAGNET LEVITATION ABOVE SPINNING DISC
Demonstrate Lenz's law in a dramatic way Read More
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K2-47: SPEEDOMETER MODEL
Demonstrate operating principle of some speedometers Read More
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K2-48: EDDY CURRENT MOTOR`
Show the use of eddy currents in producing a motor with few moving parts and no electrical brushes Read More
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K2-49: MAGNETIC STIRRER
Illustrate how a magnetic stirrer works Read More
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K2-61 THOMSON'S COIL
Demonstrates a number of concepts in magnetic induction
Read More
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K2-62 CAN SMASHER - ELECTROMAGNETIC
Blasts a cola can into two pieces using electromagnetism
Read More
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K2-63: DISPLACEMENT CURRENT MODEL
Illustrate the geometry for displacement current Read More
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K2-64: UNIPOLAR GENERATOR
Demonstrate unipolar generation of DC voltage, which may involve an explanation other than electromagnetic induction Read More
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K2-65: INDUCTION AND CAPACITOR FLASHLIGHT
Demonstrate a weird but high-tech method for constructing a flashlight Read More
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