Ohm’s Law Apparatus. (With Power Supply)

The Ohm’s Law Apparatus (With Power Supply) is a comprehensive laboratory instrument designed for the demonstration and verification of Ohm’s Law, featuring a built-in regulated power source for convenient and precise experimentation.

Description

Integrated Power Supply: The apparatus comes complete with a built-in adjustable power supply, eliminating the need for external batteries or DC sources. This enables stable voltage variation across the test resistor or resistance wire.

Apparatus Construction:

Contains a mounted resistance wire (commonly nichrome or manganin) secured between terminals.

Includes precision meters—ammeter for measuring current and voltmeter for measuring voltage across the resistor.

Circuit arrangement is contained on a durable base, with clearly marked terminals for safe connections.

Features:

Smooth voltage adjustment through an integrated knob or dial.

Accurate voltage and current readings for each setting.

Ideal for repetitive classroom and laboratory demonstrations.

Operation: The user gradually increases the supplied voltage from the power supply, recording the corresponding current values. Plotting voltage versus current (V vs I) confirms Ohm’s Law, showing a linear relationship, with the slope indicating resistance.

This self-contained unit is essential for electrical experiments where precise control and ease of use are priorities, supporting education in physics and electronics by reliably verifying the principle

V

=

I

R

V=IR.The Ohm’s Law Apparatus (With Power Supply) is a laboratory device specifically designed for demonstrating and verifying Ohm’s Law with enhanced safety and precision by combining a resistance testing element and an integrated power supply.

Description

The apparatus includes a mounted resistance wire (such as nichrome or manganin), connected securely between terminals, allowing for controlled voltage application and measurement of current.

A built-in regulated power supply is included, enabling smooth adjustment of voltage across the resistance element without needing external batteries or sources.

Standard instrumentation includes both an ammeter and a voltmeter for direct measurement of current through and voltage across the resistor.

All components are securely arranged on a durable base, with clear markings for easy connections and safe operation in a classroom or laboratory setting.

Operation

Voltage is gradually increased using the integrated power supply, while current readings are taken for each setting.

Recorded values are used to plot

V

V vs

I

I, demonstrating the linear relationship predicted by Ohm’s Law (

V

=

I

R

V=IR), with the slope indicating the resistance value.

This apparatus is essential for reliable and accurate verification of Ohm’s Law, offering both convenience and experimental control in physics and electronics education.