Reliant Lab Resistance Box Plug Type 0.1-5 Ω & 1-50 Ω for Determination of Internal Resistance

Reliant Lab Resistance Box Plug Type 0.1-5 Ω & 1-50 Ω 

For Determination of Internal Resistance

The Reliant Lab Resistance Box (Plug Type) is a precision passive electrical instrument designed to introduce specific, highly accurate resistance values into a circuit. The device operates on the "Plug and Socket" principle: each brass plug sits in a gap between heavy brass blocks. When a plug is inserted, it creates a short circuit across the gap; when removed, the current is forced to travel through a precision-wound coil of Manganin or Constantan wire housed beneath the ebonite plate. Enclosed in a seasoned teak wood case, these boxes are indispensable for bridge measurements, calibration, and general laboratory electrical testing.