1. What is Torque?

Torque is a measure of the rotational force applied to an object. In electric motors, torque determines the motor's ability to perform work and overcome resistance to rotation.

2. How Does the Calculator Work?

The calculator uses the torque equation:

Where:

• \( \tau \) — Torque (N·m)
• \( F \) — Force applied perpendicular to the lever arm (N)
• \( r \) — Distance from the pivot point to the point of force application (m)

Explanation: Torque increases with either greater force or greater distance from the pivot point.

3. Importance of Torque Calculation

Details: Calculating torque is essential for motor selection, mechanical design, and ensuring systems can handle required rotational forces without failure.

4. Using the Calculator

Tips: Enter force in newtons (N) and distance in meters (m). Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between torque and power?
A: Torque is rotational force, while power is the rate of doing work (torque × angular velocity).

Q2: How does distance affect torque?
A: Torque increases linearly with distance - doubling the distance doubles the torque for the same force.

Q3: What are typical torque values for electric motors?
A: Small motors might produce 0.1-1 N·m, while industrial motors can produce hundreds of N·m.

Q4: How is torque measured in practice?
A: Torque sensors or dynamometers can directly measure torque output of rotating machinery.

Q5: Why is torque important in motor selection?
A: The motor must produce enough torque to overcome the load's resistance, especially during startup.