US$ 98.00
Lead-free solder wire on a 100-gram spool
this electromagnet on a 4mm-terminal base slots inline with other modules for circuit-driven magnetism work
conduction
repeatable field strength across years of student handling
Green LED Demonstration Board Capacity_1000mL Lead-free solder wire on aUsed to introduce LED polarity and forward bias behavior, this green LED on a demonstration base with 4mm plug connections lights up when current flows in the correct direction.