US$ 93.99
Used to measure induced EMF as a magnet falls through a 100-turn coil on a 15mm acrylic tube
Two-thousand-turn 0
Aluminum-handled collecting net swings lightweight through tall grass and air sweeps for classroom field trips and introductory entomology sampling work
5x clear views through a 3-inch optical-glass lens with a 6-inch focal length
Spare Charged Porous Pot Category_Anatomy and Life Science Used to measure induced EMFSpare charged porous pot for the Leclanche cell, supplying a 1. 5V replacement element so wet cell demonstrations stay running once the original electrolyte loses charge capacity.