1. What is the Outer Circle Radius of Annulus?

The Outer Circle Radius of Annulus is the radius of the larger circle in a pair of concentric circles that form an annulus (ring-shaped region). It represents the distance from the center to the outer boundary of the annulus.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( r_{Outer} \) — Outer circle radius (m)
• \( A \) — Area of annulus (m²)
• \( b \) — Breadth of annulus (m)
• \( \pi \) — Mathematical constant (approximately 3.14159)

Explanation: This formula derives the outer radius from the area and breadth of the annulus using geometric relationships between concentric circles.

3. Importance of Outer Radius Calculation

Details: Calculating the outer radius is essential in engineering, architecture, and manufacturing where annular shapes are used in pipes, washers, rings, and other circular components.

4. Using the Calculator

Tips: Enter the area of the annulus in square meters and the breadth (width) of the annulus in meters. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is an annulus?
A: An annulus is a ring-shaped region bounded by two concentric circles with different radii.

Q2: How is breadth of annulus defined?
A: Breadth of annulus is the difference between the outer and inner radii (b = R - r).

Q3: Can this calculator handle different units?
A: The calculator uses meters for length units. Convert other units to meters before calculation for accurate results.

Q4: What if I know the inner radius instead of breadth?
A: If you know inner radius, calculate breadth first: breadth = outer radius - inner radius, then use this calculator.

Q5: Are there limitations to this formula?
A: The formula assumes perfect concentric circles and may not be accurate for irregular shapes or non-concentric circles.