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Portable Wheatstone Bridge Apparatus

Product Code : SCL-PLE-11738

Quick Answer: The Portable Wheatstone Bridge Apparatus is a self-contained bridge in an ABS carry case, measuring resistance from 1 Ω to 10 MΩ with ratio dials from 0.001 to 1000 and a built-in centre-zero null detector.

Last updated: 18 October 2026

Key Features

  • Measures unknown resistances from 1 Ω to 10 MΩ over several ranges.
  • Four-arm bridge with ratio dials from 0.001 to 1000.
  • Built-in centre-zero, high-sensitivity null detector.
  • Internal battery compartment, with input for an external DC supply.
  • Rotary switches for ratio and decade resistance settings.
  • Suitcase-style ABS enclosure with carrying handle.

Technical Specifications

SpecificationValue
Measuring range1 Ω to 10 MΩ, multi-range
Ratio arms0.001 to 1000
BridgeFour-arm network
Null detectorBuilt-in centre-zero galvanometer
PowerInternal battery; external DC input supported
ControlsRotary ratio and decade switches
CaseABS suitcase style, with handle

How It Is Used

The unknown resistor is connected to the terminals, a ratio is chosen and the decade switches are turned until the built-in galvanometer reads zero. The unknown resistance is then the decade setting multiplied by the ratio, so students can measure resistance by bridge balance in the laboratory or in the field without extra equipment.

Frequently Asked Questions

What range does the Portable Wheatstone Bridge Apparatus measure?

From 1 Ω to 10 MΩ, using ratio settings from 0.001 to 1000.

Does the Portable Wheatstone Bridge Apparatus need an external galvanometer?

No. A centre-zero null detector and an internal battery compartment are built into the case.

Related Physics Lab Equipment

See the full physics lab equipment range, or these related bridge and resistance apparatus:

For a quotation on the Portable Wheatstone Bridge Apparatus, contact JLab India on +91-8569909696.

   
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