Electromagnetic Induction
K7-61: TESLA COIL
Category: K7 RLC Circuits
Purpose:
Demonstrate a tesla coil, including how magnetic induction and a resonant RLC circuit is used in the production of high-voltage high-frequency sparks.
K7-05: SERIES MOTOR AND LIGHT BULB CONUNDRUM
Category: K7 RLC Circuits
Purpose:
Generate thought about how a motor works.
K6-42: SINE WAVE AND RECTIFIED SINE WAVE
Category: K6 Electric Circuits and Instruments
Purpose:
Show the AC output from a generator and how it is converted to full-wave rectified AC using a split ring commutator.
K4-51: UNIPOLAR MOTOR
Category: K4 Motors and Generators
Purpose:
Demonstrate a very simple unipolar motor.
K4-41: MOTOR-GENERATOR PAIR
Category: K4 Motors and Generators
Purpose:
Demonstrate that a motor and a generator are the same.
K4-25: DC MOTOR - HOMEMADE
Category: K4 Motors and Generators
Purpose:
Illustrate possibly the world's simplest motor.
K4-24: AC/DC MOTOR
Category: K4 Motors and Generators
Purpose:
Demonstrate the construction and the operation of AC and DC motors.
K4-23: AC MOTOR - SYNCHRONOUS
Category: K4 Motors and Generators
Purpose:
Demonstrate the concept of a synchronous motor.
K4-09: BICYCLE GENERATOR - LIGHT BULBs VS CFLs
Category: K4 Motors and Generators
Purpose:
Compare brightness and power requirements of regular tungsten filament light bulbs and compact fluorescent lamps.
K4-08: MAGNETOELECTRIC GENERATOR WITH INDUCTOR
Category: K4 Motors and Generators
Purpose:
Demonstrate how a magnetoelectric generator stores energy in an inductor and how that energy is returned to the generator.
K4-06: MAGNETOELECTRIC GENERATOR WITH CAPACITOR
Category: K4 Motors and Generators
Purpose:
Demonstrate that the generator is producing electrical energy, and that the capacitor stores electrical energy; also that a generator can run in reverse as a motor.
K4-05: MAGNETOELECTRIC GENERATOR WITH METERS AND LOADS
Category: K4 Motors and Generators
Purpose:
An AC generator with rectifier, meters and several loads.
K4-04: MAGNETOELECTRIC GENERATOR WITH AC INDICATOR BULB
Category: K4 Motors and Generators
Purpose:
Show explicitly a generator producing AC output.
K4-01: AC/DC GENERATOR
Category: K4 Motors and Generators
Purpose:
Demonstrate a simple AC/DC generator.
K3-06: TRANSFORMER - PRIMARY CURRENT VS LOAD
Category: K3 Transformers
Purpose:
Counterintuitive demonstration of how the primary current in a transformer increases when the secondary load increases.
K3-05: DEMOUNTABLE TRANSFORMER - WELDER
Category: K3 Transformers
Purpose:
Show that very large currents can be produced in the secondary of a step-down transformer.
K3-03: DEMOUNTABLE TRANSFORMER - V VS N - PROJECTION METER
Category: K3 Transformers
Purpose:
Demonstrate the effect of changing the number of turns in the secondary of a transformer.
K3-02: DEMOUNTABLE TRANSFORMER - SINGLE SPARKS
Category: K3 Transformers
Purpose:
Demonstrate induction of large voltages by a large secondary-to-primary turn ratio.
K3-01: INDUCTION IN A TRANSFORMER
Category: K3 Transformers
Purpose:
Demonstrate that a change in the primary current induces a secondary voltage.
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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
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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
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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
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K2-42 LENZ'S LAW - MAGNET IN ALUMINUM TUBE
Demonstrates Lenz's law
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K2-43: LENZ'S LAW - PERMANENT MAGNET AND COILS
Demonstrates Lenz's law
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K2-44 EDDY CURRENT PENDULUM
Shows the damping of pendula due to eddy currents
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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
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K2-62 CAN SMASHER - ELECTROMAGNETIC
Blasts a cola can into two pieces using electromagnetism
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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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