Robotics 3

Question 1

What is a potentiometer often referred to as?

Answer 1

A potentiometer is often referred to as a ‘pot’

A commonly used term in electronics.

Question 2

What is the primary function of a potentiometer?

Answer 2

To control the electric potential (voltage) in a circuit

This is achieved through variable resistance.

Question 3

What are the main components of a potentiometer?

Answer 3

• A resistive element (usually formed into an arc of a circle)
• A sliding contact (wiper) that moves along the resistive element
• Electrical terminals at each end of the element
• A housing containing the element and wiper

These components work together to allow for adjustable voltage.

Question 4

Where is the wiper connected in a potentiometer?

Answer 4

The wiper is connected to a third terminal, usually between the other two

On panel potentiometers, the wiper is typically the center terminal of three.

Question 5

How does a potentiometer function as a voltage divider?

Answer 5

It acts as an adjustable voltage divider

This functionality reduces current in a circuit.

Question 6

What happens when only two terminals of a potentiometer are used?

Answer 6

It functions as a variable resistor or rheostat

This is achieved by connecting one end and the wiper.

Question 7

What is a measuring instrument called a potentiometer used for?

Answer 7

For measuring electric potential (voltage)

This type of potentiometer is distinct from the variable resistor.