Digital Ohm's Law Apparatus
Product Code : SCL-PLE-11848
Quick Answer: The Digital Ohm’s Law Apparatus combines a 0–12 V variable DC supply, on-board fixed resistors and two 3.5-digit meters reading to 0.01 V and 1 mA, so students can plot current against voltage without parallax errors.
Last updated: 18 October 2026
Key Features
- Internal, continuously variable DC supply of 0–12 V.
- Two 3.5-digit displays for voltage and current, read together.
- Voltmeter resolution of 0.01 V on a 0–20 V scale.
- Ammeter resolution of 1 mA on a 0–2 A scale.
- Fixed standard resistors mounted on the board.
- Short-circuit protected supply and an internal glass fuse.
Technical Specifications
| Specification | Value |
|---|---|
| DC supply | Internal, 0–12 V, continuously variable |
| Displays | Two 3.5-digit (voltage and current) |
| Voltmeter | 0–20 V scale, 0.01 V resolution |
| Ammeter | 0–2 A scale, 1 mA resolution |
| Load | On-board fixed standard resistors |
| Connections | 4 mm safety-shrouded sockets |
| Protection | Short-circuit protected supply, internal glass fuse |
How It Is Used
A resistor on the board is selected and the supply is raised in steps from zero, with voltage and current read from the two displays each time. Plotting current against voltage gives a straight line for an ohmic conductor, and its slope gives the resistance.
Frequently Asked Questions
How fine are the readings on the Digital Ohm’s Law Apparatus?
The voltmeter reads to 0.01 V on a 0–20 V scale and the ammeter to 1 mA on a 0–2 A scale, both on 3.5-digit displays.
Related Physics Lab Equipment
See the full physics lab equipment range, or these related Ohm's law and resistance items:
- Ohm's Law Apparatus (with Power Supply)
- Ohm's Law Apparatus
- Resistance in Series and Parallel
- Resistance Box 500 Ohms
- Multi Range Digital Voltmeter
For a quotation on the Digital Ohm's Law Apparatus, contact JLab India on +91-8569909696.
