Whetstone bridge with pencil jockey

Product Description The Whetstone Bridge with Pencil Jockey is a precision electrical instrument used to measure unknown electrical resistances by balancing two legs of a bridge circuit. It consists of a robust base, a wire or slide wire of known resistance, and a movable contact known as the pencil jockey to slide along the wire for accurate balancing. This apparatus is widely used in physics and electrical engineering laboratories for teaching and research purposes, helping students and technicians to understand the principles of Wheatstone bridge circuits and precise resistance measurements.