Decade Resistance Box - 4 Decade, Standard Decade Resistance Box, Up To A Total Of 11, 110 Ohms, Resistance Resolution Is At 1, 10, 100, And 1000 Ohms, Decade Resistance Substitution Box Provides 4 Decade Ranges. Each Decade Is Selected With A Rotary Switch
Decade Resistance Box - 7 Decade, Portable Resistance Box, Built In Solid Metallic Body. Total Vol. 11.111110 Mega Ohms, It Is Built In Solid Metallic Body.Total Value As Well As Individual Values Are Available At All Levels, +/- 1% Tolerance & Are Of 2 Watts
Demonstration Compass, 10Cm Long Magnetic Needle On Compass Map, Easy To Demonstrate The Cardinal Points Of A Compass And Determine All Their Directions.
Demonstration Dynamo, Hank Crank, Electrical Output Via 4mm Terminals, Hand Powered, May Also Be A Motor Powered By 6 To 8V Power Supply, Model Is Mounted On A Base Plate 200 X 125 mm Approx. Which Also Carries A Hand-Drive Pulley 125 mm Diameter Coupled
Demonstration Electromagnet, Requires Power Supply, Copper Wire Is 23Swg - Diameter (0.61mm), Number Of Turns: 230, Resistance: 0.8 Ohm, Inductance: 1.6Mh, Voltage Supplied Through Those Connections Power The Electromagnet (Maximum Of 12V)