Multipurpose meter shunts
Voltmeter
Digital voltmeter
Digital multimeter
Digital multimeter with lightbulb
Simple light bulb circuit
Zero-centre ammeter
Simple circuit to measure amps
Batteries
Photovoltaic power plant - inverters
DC motor commutator end cap
Conductivity of a salt solution
Conductivity of aluminium
Conductivity of a carbon rod
Conductivity of a glass rod
Conductivity of a metal spoon
電流計の目盛りのアップ
Electrostatic attraction
Electronic diode
Simple electrical circuit
Clinometer
Battery test circuit
Simple circuit to measure volts
Digital stopclock
Bicycle dynamo
Potentiometers
Resistors
Circuit board with capacitors
Light-dependent resistor
Buzzer
Variable resistance box
Rheostat
Potentiometer jockey
Timing chip
Timing chips
Universal indicator colour range
Phenolphthalein acid-base indicator
Testing sulphur for conductivity
Daniell electrochemical cell
Coulombmeter
Battery and steel wool
Laboratory power unit transformer
Digital stopwatch
Container of the chemical element actinium
Digital pH meter
Light dependent resistor
Americium in smoke detector
Light dependent resistors
Electroscope
Electrometer
Reed switch
Transistors
Linear potentiometer
Rotary potentiometer
PCB potentiometer
Fluid pressure demonstration
Making batteries from fruit
Electrolysis of copper sulphate solution
Children participating in a science fair
Conductivity test
Anemometer
Laboratory glassware
RAM chip
Analog Ammeter
電流計
Alternating current transformer and ammeter
Camera module for mobile phone
A panel of solar cells at sunset
Soil pH meter
Soil moisture and light meter
Close up of a stationary electric motor
Rotating electric motor
Electrical transformer coils
Simple circuit with motor
Magnetising a needle
Peak flow meter
Litmus pH indicator in acid and basic
Ruler vibrating
Gyroscope
Gyroscope balancing on a wire
Bourdon pressure gauge
Mirror reflecting torchlight
Animal cell model
Capacitors
Model of cyclopentane molecule
Types of resistor
Model of cyclopropane molecule
Chlorobutane, molecular model
Methanol, molecular model
Chlorobutane, model
Propanol, molecular model
1-chloro-2-methylpropane, molecular model
D-(-) alanine, molecular model
L-(+) alanine, molecular model
Cyclohexane molecule chair conformation
Isopropyl alcohol, molecular model
2-chloro-2-methylpropane, molecular model
(+)-2-Chlorobutane, molecular model
Butanol, molecular model
Jar containing iron filings
Pile of iron filings
Computer RAM module, light micrograph
Hair straighteners
Frederick Douglass Memorial Bridge, Washington, D.C., USA
Measuring specific heat capacity
Circuit board with capacitor
Smoke rings
Smoke ring
Tap and flowing water
Ayrton-Mather galvanometer
Astatic galvanometer
Becker's galvanometer
Magnetic field from an electric current
Photovoltaic power plant.
An inverter for a solar panel system
S Z de Ferranti
Smartphone camera module
Orion parachute drop testing, 2012
Pocket calculator with colourful buttons
Chemical solvent and reagent molecule
AC/DC Variable Power Supply Unit
Integrated classroom, Washington D.C., USA
Hot water boiler switch with timer
Lincoln Memorial, Washington DC, USA
Washington Monument
Capitol building, Washington, D.C., USA
Manufacture of ISS modules
Passing current through steel wool
Light microscope
Human eye model