Direct Current Art

Simple Direct Current Generator

Science Photo Library

Light Bulb Circuit

Martyn F. Chillmaid/science Photo Library

Energy-saving Home With Direct Power

Jim West

Mercury Arc Rectifier

Adam Hart-davis/science Photo Library

Digital Multimeter

Science Photo Library

Digital Multimeter With Lightbulb

Science Photo Library

Conductivity Of A Glass Rod

Science Photo Library

Laboratory Ac Dc Power Supply #1

Science Photo Library

S Z De Ferranti #1

Sheila Terry/science Photo Library

A Panel Of Solar Cells At Sunset

Martyn F. Chillmaid/science Photo Library

Bridge Rectifier

Science Photo Library

Conductivity Of A Metal Spoon

Science Photo Library

Laboratory Ac Dc Power Supply

Science Photo Library

Digital Ammeter

Science Photo Library

Conductivity Of A Salt Solution

Science Photo Library

Multipurpose Meter Shunts

Science Photo Library

Multipurpose Meter Shunts #1

Science Photo Library

Multipurpose Meter Shunts #2

Science Photo Library

Bicycle Dynamo

Trevor Clifford Photography

Simple Light Bulb Circuit

Science Photo Library

Multipurpose Meter Shunts #3

Science Photo Library

Simple Light Bulb Circuit #1

Science Photo Library

Ammeter

Science Photo Library

Conductivity Of Aluminium

Science Photo Library

Ac/dc Variable Power Supply Unit

Science Stock Photography/science Photo Library

Light Bulb In A Simple Circuit

Cordelia Molloy/science Photo Library**

S Z De Ferranti

Sheila Terry/science Photo Library

Laboratory Power Unit Transformer

Martyn F. Chillmaid/science Photo Library

Zero-centre Ammeter

Science Photo Library

Conductivity Of A Carbon Rod

Science Photo Library

Dc Motor

Science Photo Library

Magnetizing A Metal Object With A Solenoid #6

Mikkel Juul Jensen/science Photo Library

Tungsten Halogen Lamp For Slide Projector

Martyn F. Chillmaid/science Photo Library

Voltmeter

Science Photo Library

Dc Motor Commutator

Science Photo Library

Thomas Edison

Collection Abecasis

Rookes Crompton

Science Photo Library

Zenobe Theophile Gramme

Universal History Archive/uig

Dc Generator

Carlos Clarivan

Dc Motor Commutator End Cap

Science Photo Library

Dc Generator #2

Carlos Clarivan

Dc Generator #3

Carlos Clarivan

Dc Motor Shell

Science Photo Library

John Highfield

Science Photo Library

Magnetizing A Metal Object With A Solenoid

Mikkel Juul Jensen/science Photo Library

Magnetizing A Metal Object With A Solenoid #3

Mikkel Juul Jensen/science Photo Library

Magnetizing A Metal Object With A Solenoid #4

Mikkel Juul Jensen/science Photo Library

Magnetizing A Metal Object With A Solenoid #5

Mikkel Juul Jensen/science Photo Library

Dc Ratio Meter Calibration

Andrew Brookes, National Physical Laboratory/science Photo Library

Early Electric Locomotive

Library Of Congress/science Photo Library

Dc Ratio Meter Calibration #1

Andrew Brookes, National Physical Laboratory/science Photo Library

Dc Generator #1

Carlos Clarivan

Dc Motor Armature

Science Photo Library

Magnetizing A Metal Object With A Solenoid #1

Mikkel Juul Jensen/science Photo Library

Disassembled Dc Motor

Science Photo Library

Magnetizing A Metal Object With A Solenoid #2

Mikkel Juul Jensen/science Photo Library

Magnetizing A Metal Object With A Solenoid #7

Mikkel Juul Jensen/science Photo Library

Potato Clock

Science Photo Library

Lemon Clock

Science Photo Library

Zero-centre Ammeter #1

Science Photo Library

Zero-centre Ammeter #2

Science Photo Library

Lemon Clock

Trevor Clifford Photography

Lemon Clock #1

Trevor Clifford Photography

Foucault Interrupter

Science Photo Library

Microwave Oven With The Casing Removed

Sheila Terry

Microwave Oven Transformer

Sheila Terry

Power Supply Experiment

Andrew Lambert Photography

Bridge Rectifier

Andrew Lambert Photography

Ac And Dc Power Supplies

Andrew Lambert Photography

Tungsten Halogen Lamps

Sheila Terry

Standard Electrical Circuit Symbols #2

Sheila Terry

Standard Electrical Circuit Symbols #3

Sheila Terry