# PHYS272

## P2-24: GIANT-LIGHT BULB

Purpose: Demonstrate color and intensity changes of blackbody radiation with temperature.

## 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.

## K7-41: RC CIRCUIT - DIFFERENTIATION AND INTEGRATION

Category: K7 RLC Circuits
Purpose: Demonstrate differentiation and integration using RC circuits.

## K7-15: CURRENT IN RC CIRCUIT?

Category: K7 RLC Circuits
Purpose: Demonstrate charging of a capacitor in a possibly counterintuitive way.

## K7-12: RC CIRCUIT - RC TIME CONSTANT - PROJECTION METERS

Category: K7 RLC Circuits
Purpose: Measure an RC time constant and to observe the shape of the charging and discharging curves.

## K8-52: MICROWAVE MAGNETRON

Purpose: Show students what the magnetron tube from a typical microwave oven looks like.

## K8-44: RADIOWAVES - COUPLING OF WAVES

Purpose: Illustrate inductive coupling using radio waves.

## K6-12: SERIES/PARALLEL LIGHT CIRCUIT CONUNDRUM

Purpose: Test your ability to analyze series/parallel circuit.

## K5-44: NON-OHMIC DEVICE - LIGHT BULB

Purpose: Show the change in resistance of a light bulb with temperature.

## K5-32: RESISTANCE VS DIAMETER AND LENGTH

Purpose: Determine how resistance varies as a function of diameter and length for the same material.

## K5-35: RESISTORS AT LN TEMPERATURE

Purpose: Illustrate materials with both positive and negative temperature coefficients of resistivity.

## K5-23: ROTATING TWO-COLOR LED

Purpose: Demonstrate that what comes out of a 110 VAC plug is in fact alternating current.

## K5-14: ELECTRIC CELL

Purpose: Demonstrate how an electric cell is formed.

## K5-13: ELECTRIC CURRENT - MODEL

Purpose: Indicate how electrons really flow through a conductor.

## K4-06: MAGNETOELECTRIC GENERATOR WITH CAPACITOR

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.

## 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.

## K2-64: UNIPOLAR GENERATOR

Purpose: Demonstrate unipolar generation of DC voltage, which may involve an explanation other than electromagnetic induction.

## K2-28: DEMOUNTABLE TRANSFORMER - 10 KV ARC

Purpose: Demonstrate that a large voltage increase is attainable using a transformer.

## K2-25: MUTUAL INDUCTION - DEMOUNTABLE TRANSFORMER

Purpose: Demonstrate mutual induction and to show the effect of various core materials.
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• #### K2-01 EARTH INDUCTOR

Induces an emf by moving a coil through Earth's magnetic field Read More

• #### K2-03 FARADAY'S EXPERIMENT ON INDUCTION

Demonstrates the induction between two coils Read More
• #### 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

• #### K2-12: SELF-INDUCTION - DEMOUNTABLE TRANSFORMER

Demonstrate back-EMF in an inductor Read More
• #### K2-21: RUHMKORFF INDUCTION COIL

Demonstrate induction of a very high voltage using a small voltage source Read More
• #### K2-22 INDUCTION COIL WITH LIGHT BULB

Demonstrates magnetic induction with 110 VAC Read More

• #### K2-25: MUTUAL INDUCTION - DEMOUNTABLE TRANSFORMER

Demonstrate mutual induction and to show the effect of various core materials Read More
• #### K2-26: MUTUAL INDUCTANCE STANDARD

Demonstrate the standard for mutual inductance Read More
• #### 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
• #### K2-28: DEMOUNTABLE TRANSFORMER - 10 KV ARC

Demonstrate that a large voltage increase is attainable using a transformer Read More
• #### 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
• #### K2-40: MAGNETIC ACCELERATOR

Demonstrate magnetic potential energy Read More
• #### K2-41: LENZ'S LAW - ROLLING RODS

Demonstrate eddy currents and Lenz's law Read More

• #### K2-44 EDDY CURRENT PENDULUM

Shows the damping of pendula due to eddy currents Read More
• #### K2-45: EDDY CURRENTS - MAGNET AND SOFT DRINK CAN

Demonstrate eddy currents and Lenz's law Read More
• #### K2-46: MAGNET LEVITATION ABOVE SPINNING DISC

Demonstrate Lenz's law in a dramatic way Read More
• #### K2-47: SPEEDOMETER MODEL

Demonstrate operating principle of some speedometers Read More
• #### 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
• #### K2-49: MAGNETIC STIRRER

Illustrate how a magnetic stirrer works Read More
• #### K2-61 THOMSON'S COIL

Demonstrates a number of concepts in magnetic induction Read More
• #### K2-62 CAN SMASHER - ELECTROMAGNETIC

Blasts a cola can into two pieces using electromagnetism Read More
• #### K2-63: DISPLACEMENT CURRENT MODEL

Illustrate the geometry for displacement current Read More
• #### K2-64: UNIPOLAR GENERATOR

Demonstrate unipolar generation of DC voltage, which may involve an explanation other than electromagnetic induction Read More
• #### K2-65: INDUCTION AND CAPACITOR FLASHLIGHT

Demonstrate a weird but high-tech method for constructing a flashlight Read More
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