# DC Circuits

## K7-43: RELAXATION OSCILLATOR - NEON LAMP

Category: K7 RLC Circuits
Purpose: Demonstrate a pulse circuit with different pulse rates.

Category: K7 RLC Circuits
Purpose: Demonstrate a barricade flasher circuit.

## K7-31: RLC CIRCUIT - OVER/UNDER/CRITICAL DAMPING

Category: K7 RLC Circuits
Purpose: Demonstrate over/under/critical damping in a series RLC circuit.

## K7-30: RLC CIRCUIT - RINGING

Category: K7 RLC Circuits
Purpose: Demonstrate ringing in a simple RLC circuit.

## 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.

## K7-05: SERIES MOTOR AND LIGHT BULB CONUNDRUM

Category: K7 RLC Circuits
Purpose: Generate thought about how a motor works.

## K6-52: IMPEDANCE MATCHING - BATTERY AND JOULEMETER

Purpose: Demonstrate that the power transmission is maximized when the source impedance and the load impedance are equal.

## K6-51: KIRCHHOFF'S LAWS

Purpose: Apply Kirchhoff's laws to a simple two-loop problem.

## K6-36: VISIBLE AMMETER

Purpose: See some of the important parts inside an ammeter.

## K6-35: VOLTAGE DIVIDER

Purpose: Show how a voltage divider can be used to produce any voltage up to the maximum of the source.

## K6-33: WHEATSTONE BRIDGE

Purpose: Demonstrate operation of a Wheatstone bridge.

## K6-32: POTENTIOMETER

Purpose: Find an unknown EMF using a voltage divider.

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

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

## K5-42: TRANSISTOR

Purpose: Demonstrate a transistor circuit.

## I1-17: THERMOSTAT - MODEL

Purpose: Model of use of a bimetal strip in a thermostat.

## J4-43: CAPACITORS IN SERIES AND PARALLEL WITH PROJECTION METER

Purpose: Illustrate voltage relations in series and parallel capacitor circuits.

## J4-42: CAPACITORS IN SERIES AND PARALLEL

Purpose: Demonstrate the voltage/charge/capacitance relationships in series and parallel capacitor circuits.

## J4-03: PARALLEL PLATE CAPACITOR - SERIES CAPACITORS

Purpose: Demonstrate the effect of capacitors in series.

## K7-11 RC CIRCUIT - RC TIME CONSTANT - OSCILLOSCOPE

Category: K7 RLC Circuits
Purpose: Observe the shape of the charging and discharging curves. Measures an RC time constant.
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• #### J4-01 PARALLEL PLATE CAPACITOR

Demonstrates that potential difference across a capacitor is proportional to the plate separation Read More
• #### J4-03: PARALLEL PLATE CAPACITOR - SERIES CAPACITORS

Demonstrate the effect of capacitors in series. Read More
• #### J4-04 PARALLEL PLATE CAPACITOR - IONIZATION OF AIR

Demonstrates the mobility of ions Read More
• #### J4-12: ELECTROSTATIC FORCE - MOVING LUMBER

Demonstrate polarization of water molecules. Read More
• #### J4-13: MATCHSTICK ON NICKLE UNDER GLASS

A simple trick easily solved with the application of electrostatic force and the polar nature of water molecules. Read More
• #### J4-21: COLOR FILTER MODEL OF CHARGED DIELECTRIC

Represent charge separation in a capacitor dielectric. Read More
• #### J4-22 PARALLEL PLATE CAPACITOR WITH DIELECTRIC

Demonstrates that inserting a dielectric into a capacitor increases the capacitance Read More
• #### J4-23: POLARIZATION OF DIELECTRIC - DISSECTIBLE LEYDEN JAR

Demonstrate that energy is stored in a capacitor as charge separation in the dielectric. Read More
• #### J4-24: FORCE ON DIELECTRIC IN ELECTRIC FIELD

Demonstrate the force on a dielectric in an electric field. Read More
• #### J4-31 ENERGY STORED IN A CAPACITOR

Demonstrates that energy is stored in a capacitor and how that energy may be used Read More
• #### J4-32 DISCHARGE OF CAPACITOR WITH BANG

Demonstrates that capacitors store electrical energy Read More
• #### J4-41: CAPACITORS

Display a variety of capacitors Read More
• #### J4-42: CAPACITORS IN SERIES AND PARALLEL

Demonstrate the voltage/charge/capacitance relationships in series and parallel capacitor circuits. Read More
• #### J4-43: CAPACITORS IN SERIES AND PARALLEL WITH PROJECTION METER

Illustrate voltage relations in series and parallel capacitor circuits. Read More