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Reversing Key Commutator

Product Code : SCL-EE-12415

Quick Answer: The Reversing Key Commutator is a laboratory switch that reverses the direction of current in a connected DC circuit without rewiring, used in school electricity and electromagnetism experiments.

Last updated: October 2026

Key Features

Reverses current direction in a DC circuit
Avoids rewiring when the current direction must change
Shows opposite galvanometer deflection and polarity change
Used with low-voltage educational circuit set-ups

About This Product

The power source, load and measuring instrument are connected to the circuit diagram, terminals are checked, and the low-voltage DC supply is switched on. Operating the key reverses the current, and students watch the galvanometer deflect the other way or a magnetic effect change. It supports electromagnetism experiments where field direction depends on current direction.

Frequently Asked Questions

Q1. What does the reversing key show in a galvanometer circuit?
When the key is operated, the current through the circuit reverses, so the galvanometer needle deflects in the opposite direction.

For a quotation on the Reversing Key Commutator, contact School Equipments India.

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Reversing Key Commutator

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