Quick Answer: The Joule’s Effect Apparatus demonstrates the heating effect of electric current, showing how electrical energy turns into heat as current flows through a conductor. It is used to verify Joule’s law of heating with an ammeter, voltmeter, thermometer and stopwatch.
Last updated: October 2026
Key Features
Heating element runs from a low-voltage power supply
Ammeter in series and voltmeter across the heating element record current and voltage
Temperature rise is read on a thermometer against time
Heat produced is compared with the electrical energy supplied
Technical Specifications
Specification
Value
Principle
Electrical energy converted into heat energy
Law demonstrated
Joule’s law of heating
Measurement support
Compatible with ammeter, voltmeter, thermometer and stopwatch
Operation mode
Manual laboratory experiment
About This Product
Joule’s law states that the heat produced in a conductor is proportional to the square of the current, to the resistance and to the time. Students record current, voltage, time and temperature rise, calculate the heat produced and set it against the electrical energy supplied. Educational Instrument can arrange export supply of the Joule’s effect apparatus to Kyrgyzstan, Trinidad and Tobago, Kiribati, Portugal and Cyprus.
Frequently Asked Questions
Which meters are used with the Joule’s Effect Apparatus?
An ammeter in series and a voltmeter across the heating element, with a thermometer for the temperature rise and a stopwatch for the heating time.
