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Resistance

K6-52: IMPEDANCE MATCHING - BATTERY AND JOULEMETER

K6-52: IMPEDANCE MATCHING - BATTERY AND JOULEMETER

Category: K6 Electric Circuits and Instruments

Purpose: Demonstrate that the power transmission is maximized when the source impedance and the load impedance are equal.
K6-35: VOLTAGE DIVIDER

K6-35: VOLTAGE DIVIDER

Category: K6 Electric Circuits and Instruments

Purpose: Show how a voltage divider can be used to produce any voltage up to the maximum of the source.
K6-33: WHEATSTONE BRIDGE

K6-33: WHEATSTONE BRIDGE

Category: K6 Electric Circuits and Instruments

Purpose: Demonstrate operation of a Wheatstone bridge.
K6-32: POTENTIOMETER

K6-32: POTENTIOMETER

Category: K6 Electric Circuits and Instruments

Purpose: Find an unknown EMF using a voltage divider.
K6-22: ENERGY CONVERSION - IMMERSION HEATER

K6-22: ENERGY CONVERSION - IMMERSION HEATER

Category: K6 Electric Circuits and Instruments

Purpose: Demonstrate quantitatively the conversion of electrical energy into heat.
K6-21: HEATING IN CURRENT-CARRYING WIRE

K6-21: HEATING IN CURRENT-CARRYING WIRE

Category: K6 Electric Circuits and Instruments

Purpose: Show the conversion of electrical energy into heat.
K5-45: SEMICONDUCTOR MODEL

K5-45: SEMICONDUCTOR MODEL

Category: K5 Electrical Properties of Matter

Purpose: Model of semiconductor.
K5-44: NON-OHMIC DEVICE - LIGHT BULB

K5-44: NON-OHMIC DEVICE - LIGHT BULB

Category: K5 Electrical Properties of Matter

Purpose: Show the change in resistance of a light bulb with temperature.
K5-41: V-I CURVES FOR OHMIC AND NON-OHMIC DEVICES

K5-41: V-I CURVES FOR OHMIC AND NON-OHMIC DEVICES

Category: K5 Electrical Properties of Matter

Purpose: Illustrate resistive properties of resistors and diodes.
K5-34: THERMAL COEFFICIENT OF RESISTANCE IN COPPER

K5-34: THERMAL COEFFICIENT OF RESISTANCE IN COPPER

Category: K5 Electrical Properties of Matter

Purpose: Show that the resistance of copper changes linearly with temperature.
K5-36: RESISTORS AT LN TEMPERATURE - LIGHT BULB INDICATOR

K5-36: RESISTORS AT LN TEMPERATURE - LIGHT BULB INDICATOR

Category: K5 Electrical Properties of Matter

Purpose: Demonstrate materials with both positive and negative temperature coefficients of resistance.
K5-32: RESISTANCE VS DIAMETER AND LENGTH

K5-32: RESISTANCE VS DIAMETER AND LENGTH

Category: K5 Electrical Properties of Matter

Purpose: Determine how resistance varies as a function of diameter and length for the same material.
K5-35: RESISTORS AT LN TEMPERATURE

K5-35: RESISTORS AT LN TEMPERATURE

Category: K5 Electrical Properties of Matter

Purpose: Illustrate materials with both positive and negative temperature coefficients of resistivity.
K5-13: ELECTRIC CURRENT - MODEL

K5-13: ELECTRIC CURRENT - MODEL

Category: K5 Electrical Properties of Matter

Purpose: Indicate how electrons really flow through a conductor.
J7-12: CURIE POINT OF IRON

J7-12: CURIE POINT OF IRON

Category: J7 Magnetic Materials

Purpose: Show the Curie point of iron.
I7-21: SUPERCONDUCTOR - MAGNET LEVITATION

I7-21: SUPERCONDUCTOR - MAGNET LEVITATION

Category: I7 Solid State and Low Temperature Physics

Purpose: Demonstrate levitation of a magnet above a high-temperature superconductor
K5-43: NON-OHMIC DEVICE - V VS. I

K5-43: NON-OHMIC DEVICE - V VS. I

Category: K5 Electrical Properties of Matter

Purpose: Demonstrates the non-linearity of the V vs I curve for a diode
K5-33 CONDUCTIVITY OF SALT SOLUTION

K5-33 CONDUCTIVITY OF SALT SOLUTION

Category: K5 Electrical Properties of Matter

Purpose: Shows that pure water is not conducting, but a solution of an electrolyte is conducting
K5-31 OHM'S LAW

K5-31 OHM'S LAW

Category: K5 Electrical Properties of Matter

Purpose: Demonstrates relationship between current, voltage, and resistance
K4-07 BICYCLE GENERATOR

K4-07 BICYCLE GENERATOR

Category: K4 Motors and Generators

Purpose: Demonstrates a 110 VAC magnetoelectric generator, and the relationship of work to power output
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