# 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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• #### K5-01: PIEZOELECTRICITY

Demonstration of a piezoelectric crystal Read More
• #### K5-02: PIEZOELECTRIC CRYSTAL - AUDIBLE

Demonstrate that a piezoelectric crystal converts electrical impulses into physical vibrations Read More
• #### K5-03: PIEZOELECTRIC IGNITOR

Show a commercial use for piezoelectricity Read More
• #### K5-04: PIEZOELECTRIC GUN

Application of piezoelectricity to produce copious quantities of electric charge Read More
• #### K5-11: BATTERY MODEL

Simple model of a battery using a human as the source of energy Read More
• #### K5-12 BATTERY AND CURRENT - WORKING MODEL

Model of battery with circuit attached Read More
• #### K5-13: ELECTRIC CURRENT - MODEL

Indicate how electrons really flow through a conductor Read More
• #### K5-14: ELECTRIC CELL

Demonstrate how an electric cell is formed Read More
• #### K5-16: CARRIER CURRENT DENSITY MODEL

Model the density of carriers crossing a plane Read More
• #### K5-21: AC PLUG CIRCUIT CHECKER

Check the wiring of 110VAC power sockets Read More
• #### K5-22: AC PLUG CIRCUIT CHECKER CHECKER

Demonstrate each different kind of wiring error Read More
• #### K5-23: ROTATING TWO-COLOR LED

Demonstrate that what comes out of a 110 VAC plug is in fact alternating current Read More
• #### K5-31 OHM'S LAW

Demonstrates relationship between current, voltage, and resistance Read More
• #### K5-32: RESISTANCE VS DIAMETER AND LENGTH

Determine how resistance varies as a function of diameter and length for the same material Read More
• #### K5-33 CONDUCTIVITY OF SALT SOLUTION

Shows that pure water is not conducting, but a solution of an electrolyte is conducting Read More
• #### K5-34: THERMAL COEFFICIENT OF RESISTANCE IN COPPER

Show that the resistance of copper changes linearly with temperature Read More
• #### K5-35: RESISTORS AT LN TEMPERATURE

Illustrate materials with both positive and negative temperature coefficients of resistivity Read More
• #### K5-36: RESISTORS AT LN TEMPERATURE - LIGHT BULB INDICATOR

Demonstrate materials with both positive and negative temperature coefficients of resistance Read More
• #### K5-41: V-I CURVES FOR OHMIC AND NON-OHMIC DEVICES

Illustrate resistive properties of resistors and diodes Read More
• #### K5-42: TRANSISTOR

Demonstrate a transistor circuit Read More
• #### K5-43: NON-OHMIC DEVICE - V VS. I

Demonstrates the non-linearity of the V vs I curve for a diode Read More
• #### K5-44: NON-OHMIC DEVICE - LIGHT BULB

Show the change in resistance of a light bulb with temperature Read More