Experiment showing electromagnet effect
Simple electronic circuit detects water
Variable resistance box
Boy's hands attaching wires
Electric circuit split into branches
Bulb resting on steel screw
Early battery
Resistance test, battery, resistor
Electromagnetic experiment, battery
Electromagnetic experiment using battery
Experiment using cathode ray tube
Compasses arranged around a coil
Motor effect experiment
Simple motor
Laboratory equipment
Power splitter connectors
Electromagnet attracting iron filings
Conductivity test
Resistors
Variable Resistor
Variable Resistor Box
Light-dependent resistor
電子基板イメージ
Digital voltmeter
Circuit board components
Conductor in magnetic field
Battery connected to coil of wire creating electromagnet
Magnetism experiment, 1889
Solar cell inside a calculator
Electronic resistors
Buzzer circuit
Circuit Board
Circuit board
Magnetic probe showing field direction
Potentiometers
Measuring induced electromotive force
Linear potentiometer
Rotary potentiometer
Power splitter
Light dependent resistor
Light dependent resistors
Conductivity of wood
Horseshoe magnet attracting metal screws
Bar magnets attracting metal filings
Horseshoe magnet attracting metal filings
Metal filings attached to magnets
Electronics laboratory
Investigating resistance of wire
The electronic scale tare button.
基盤
メモリー
Iron filings on a magnet
Stapler, X-ray
Multi-purpose compass
方位磁石
Changing copper wires on battery
Thermistor
Variable resistor
Computer motherboard
Pilot ACE computer components, 1954
Pilot ACE computer components, 1950s
アンティークコンパス
Optical physics laboratory
PCB potentiometer
Using electric gauge to test current
Semiconductor research
Microprocessor in lab
Electronic equipment
Computer circuit board
Computers circuit board components
Computer circuit boards
Types of resistor
Lightbulb attached to ammeter
Compass rose against cog and gear wheels
地図と方位磁石
コンパスと世界地図
Compass
方位磁針
Many compass showing different direc
Glass compass over image od DNA strand
Compass on radioactive barrels from top
古地図と方位磁石
Electrical circuit with ammeter
Optical fiber and electronic component
Microchip with fuel cells, close up
Close up of tweezers holding microchip
Iron filings and sand
Magnetic field
Magnets positioned as opposites
Dipping magnet in iron filings
Iron filings with a magnet
Safety pins with a magnet
Magnetic repulsion
Hand holding a magnet
Hand holding magnet with push pins
Hand holding magnet, picking up metal
Bar magnet attracting metal filings
Two bar magnets positioned opposite