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can be measured AC / DC voltage
allowing measurements at an optimum position
field coil
Interchangeable Stopper: Includes a polypropylene 24/29 stopper that can be easily interchanged as needed for secure closure
This electroscope used for detecting the presence of electrostatic charge
3-D Magnetic Builders - Starter Set can be measured AC /Its easy to create fun 3 D constructions with magnetic builders that connect on every sideat any angle! The plastic shapes have safe, fully contained magnets that are a cinch to connect and only one side of each piece is colored, so kids know which sides attract and which repel! . Set includes 32 pieces in 2 shapes and 4 colors. Square measures 2 3 8". Premium Quality: This item is made of high quality, heavy duty and durable materials. Designed for
