Student Power Supply 04006 Senior high school Teaching Student Power Supply 2-24V Middle School Electrical Physics Teaching Instrument Experimental Device

Electromagnetic doting timer full set of carbon paper with paper tape fixing clip Senior high school physics experimental equipment teaching instrument

24011 hoof electromagnet for teaching demonstration

Student Power Supply 04003 High School Student Power Supply 2-16V Middle School Electrical Physics Teaching Instrument Experimental Equipment

Teaching Apparatus 12007 Digital Timer

Teaching Instrument Edm Timer

The teaching mechanical energy of the air compression ignition instrument is converted into internal energy thermal experimental equipment ignition device J22203

Electrical Physics Experimental Equipment Hexagonal Copper Sliding Rod Sliding Rheostat for Teaching 5Ω3A10Ω2A20Ω2A5

Sliding rheostat for teaching sliding rheostat

Junior high school digital display student power supply 1.5~9V/1.5A voltage regulator/middle school physics experiment equipment teaching equipment

resistance ring

100 Ohm Sliding Rheostat

Sliding rheostat for teaching sliding rheostat

Sliding Rheostat 5Ω10Ω20Ω50Ω100Ω200Ω Ohm Copper Sliding Rheostat

Black Box of Electrical Components J24056 Circuit Black Box Black Box New Curriculum Standard Physics Teaching Instrument Material for Middle and High School

Sliding rheostat for teaching sliding rheostat

24010 Original Secondary Coil Electromagnetic Sensor and Junior High School Electromagnetic Experiment to Verify Lenz's Law

Teaching Resistance Box 0-9999.9 Ohm Electrical Rheostat Box Simple Resistance Box Demonstration Resistance Box Experimental Equipment

Junior high school physics teaching regulated DC power supply DC regulated 2V ~ 16V/2A experimental power supply

J02440 multi-function charger DCD-2A type physics experiment instrument teaching equipment

Junior high school students power supply 1.5~9V/1.5A voltage regulator/middle school physics experiment equipment teaching equipment