Millikan's Apparatus without Power Supply
Product Code : JA-APE-9406
The Millikan's Apparatus without Power Supply (SKU JA-APE-9406) is used to calculate the charge on a single electron by observing charged latex spheres between two charged plates. In this Millikan's apparatus for the charge on the electron, a latex solution is atomised into small spheres that pick up a static charge from the rubber hose, and their movement in the cell is watched through a small telescope with a graticule; the power sources are connected externally, as this version has no built-in supply.
Specifications
The apparatus has a cell of charged plates, a telescope with graticule, a polarity reversing switch, a knob to set the cell voltage from zero to about 300 V DC, sockets for a meter to monitor the cell voltage, sockets for a 12 V AC or DC, 3 A illuminator supply and sockets for an external high-voltage DC supply of about 300 V.
| Product | Millikan's Apparatus without Power Supply |
| SKU | JA-APE-9406 |
| Particles | Latex solution atomised into small spheres, charged by the rubber hose |
| Viewing | Small telescope with graticule |
| Cell voltage | Adjustable by knob from zero to about 300 V DC |
| Polarity | Reversing switch; red socket positive in the forward position |
| Meter sockets | For a student bench meter or multimeter to monitor cell voltage |
| Illuminator supply | Sockets for 12 V AC or DC at 3 A |
| High-voltage input | Sockets for an external DC supply of about 300 V to the cell plates |
| Power supply | Not built in; external sources required |
Experiments with Millikan's apparatus
Students time the charged spheres as they move between the plates with the field in each direction, then use the plate voltage and the measured velocities to calculate the charge carried and show that it comes in multiples of one electronic charge.
- Determination of the charge on a single electron
- Observing charged spheres move towards one plate or the other as the polarity is reversed
- Measuring sphere velocities with the graticule telescope
- Showing that electric charge is quantised
Scope of supply
The listing covers the Millikan's apparatus without built-in power supply. The high-voltage DC supply, 12 V illuminator supply, meter, latex solution, spares and quantities are confirmed on the quotation.
Packing, MOQ and lead time
Minimum order quantity, lead time and packing are confirmed on each quotation according to the quantity and delivery destination. JaincoLab supplies modern physics apparatus to college and university laboratories and education projects, and exports to buyers in Africa, the Middle East and South and South-East Asia.
JaincoLab specialises in turnkey laboratory projects funded by education ministries, the World Bank and United Nations programmes, manufacturing and exporting the equipment and executing these projects successfully in many countries. Tender bidders can send their requirement list through our tenders page for a line-by-line quotation.
Frequently asked questions
Does this version include a power supply?
No. Power sources must be connected: about 300 V DC to the cell plates and 12 V AC or DC at 3 A for the illuminator. A version with power supply is listed separately.
How are the spheres observed?
Through a small telescope with a graticule.
How is the cell voltage controlled?
A knob adjusts it from zero to about 300 V DC, a switch reverses the polarity, and sockets are provided for a meter to monitor the voltage.
What should a quotation request include?
Send the SKU JA-APE-9406, the quantity, whether power supplies are needed and the delivery destination.
Related products
- Millikan's Apparatus with Power Supply
- Mass of Electron Apparatus
- EHT Power Supply
- Planck Constant Apparatus
More electron and atomic physics apparatus is listed in Atomic Physics Equipment from JaincoLab, a physics lab equipment manufacturer in India.
Request a quote
To order the Millikan's Apparatus without Power Supply, send the quantity and delivery destination through the JaincoLab contact page or email [email protected].
