150mm Red Connecting Lead Prong_3 letting students vary the moment

letting students vary the moment arm distances on either side and find the balance point for any combination of masses

Compares 2-

supplying an inert electrode that conducts current without contributing its own ions to the cell reaction

stable Alnico fields and matching keepers across this bar-magnet pair give the classroom a reliable workhorse for ferromagnetism and pole-orientation demonstrations

150mm Red Connecting Lead Prong_3 letting students vary the momentUsed as the red rail partner to the 150mm black 4mm stackable lead, this insulated wire keeps polarity color coded across short branches in 4mm socket student circuits.