PN Junction Diode Characteristics Apparatus – 2 Meter
Product Code : SCL-EAE-11362
Quick answer: The PN Junction Diode Characteristics Apparatus - 2 Meter is a semiconductor trainer with two analog meters for reading diode voltage and current together. Students change the bias in steps, record paired readings and plot the forward and reverse V-I characteristics to find the knee voltage. Lab Exports manufactures it in Delhi for schools, colleges and polytechnics.
Specifications
| Item | Specification |
|---|---|
| Experiment | Forward- and reverse-bias V-I characteristics of a PN junction diode |
| Meter configuration | Two analog meters |
| Category | Physics laboratory - semiconductor and electronics trainer |
| Intended users | Schools, colleges, polytechnics, technical institutes, teachers and electronics students |
| Make | Lab Exports |
For the range and units of each meter, email [email protected] with the house code.
How the two-meter diode experiment is done
The two-meter version of the PN junction diode characteristics apparatus carries two analog meters, so the voltage across the diode and the current through it can be watched together while the bias is changed. Students take a sequence of readings, enter them in an observation table and plot current against voltage for forward and reverse bias.
- Set the apparatus on a stable bench and identify the diode section, the two meters, the terminals and the adjustment controls.
- Turn all adjustable controls to minimum and connect the diode in forward bias using the supplied circuit diagram.
- Switch on and increase the input gradually, reading both meters at each step and recording the pair in the observation table.
- Reduce the input to minimum, switch off and reconnect the diode for reverse bias.
- Repeat the readings in reverse bias, then plot the forward and reverse characteristics on one set of axes.
Because both quantities are read from pointer scales, the practical also trains students in analog meter reading: choosing the scale, avoiding parallax and estimating between divisions. The finished curve shows the knee in forward bias and the near-zero reverse current.
Key features
- Two analog meters for observing diode voltage and current together
- Forward-bias study of how current rises as forward voltage increases
- Reverse-bias study of the small reverse current within the rated limits
- Accessible layout of terminals, controls and measuring sections for supervised use
- Builds analog scale-reading and observation-table skills alongside semiconductor theory
Documentation and supply
A circuit diagram for the diode connections is supplied with the apparatus. Most Lab Exports products carry a one-year manufacturer warranty.
Lab Exports manufactures the two-meter PN junction diode apparatus at its works in Laxmi Nagar, Delhi, and supplies it to schools, colleges and polytechnics in India and 60+ countries, handling the export documents for each shipment. More about the company is on the About Lab Exports page.
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- MO65 Desk Stand Meter (SCL-EAE-11358)
- EDM80 Desk Stand Meter (SCL-EAE-11357)
- MR80 Desk Stand Meter (SCL-EAE-11356)
The full range is in the Electrical and Electronics section of the Physics Lab range.
Frequently asked questions
Why does the apparatus have two meters?
One meter reads the voltage across the diode and the other the current through it, so each voltage-current pair can be taken at the same moment while the bias is changed.
What is plotted with the PN junction diode characteristics apparatus?
Diode current against applied voltage for both forward and reverse bias. The forward curve shows the knee (conduction) voltage and the reverse curve shows how little current flows below breakdown.
What is the price of the two-meter PN junction diode apparatus?
Prices are not published on the website. Add the two-meter PN junction diode apparatus to the Enquiry Cart with the Add To Cart button on this page, or email [email protected] with the house code SCL-EAE-11362 and the quantity, to receive a quotation.
Does Lab Exports manufacture the two-meter PN junction diode apparatus?
Yes. Lab Exports manufactures the two-meter PN junction diode apparatus at its works at 11/315, Lalita Park, Laxmi Nagar, Delhi 110092, under house code SCL-EAE-11362.
Request a quote
Email [email protected] with the house code SCL-EAE-11362 and the quantity, or add the two-meter PN junction diode apparatus to the Enquiry Cart with the Add To Cart button on this page. Tender buyers can also see the Tenders and OEM page.
