Magnetic Field Demo Coil Thru Base column The Plastic Hair Hygrometer is

The Plastic Hair Hygrometer is a precise and durable tool for monitoring humidity levels in laboratory settings

due to thermal stress

so a petrol hydrometer may indicate if diesel is mixed with petrol by showing an unexpectedly high density reading

Pack: 250 pcs

Magnetic Field Demo Coil Thru Base column The Plastic Hair Hygrometer isA Magnetic Field Demo Coil Thru Base features a rectangular, round, or solenoid coil and a transparent base plate, allowing for easy visualization and study of the field shape around a straight conductor. It can also be utilized on an overhead projector. The use of plotting compasses on the base plate enhances the observation of the magnetic field, with compasses being the preferred method over iron filings. Rectangular Coil: Provides the field