Question

What is a DC Potentiometer?

Answer 1

1. A potentiometer is a variable resistor with a sliding wiper that increases or decreases resistance across a resistive strip.
2. A potentiometer is a changeable resistor that can be used to make a programmable voltage divider.
3. A DC potentiometer can directly detect unknown voltage by comparing it with the known voltage.
4. A DC potentiometer is a potentiometer with a battery as the source of power and a direct current balance.
5. A potentiometer is a three-terminal device that regulates voltage, whereas a rheostat is a two-terminal device that regulates the current.
6. The potentiometer, trimmer, and rheostat are electromechanical instruments designed to swiftly modify resistance values.
7. The potential reduced over a uniform cross-section wire segment carrying a constant current is directly proportional to its length, according to the principle of a potentiometer.
8. A potentiometer is a simple tool for determining electrical potential.
9. The potentiometer is made out of a known EMF battery V with a voltage known as driver cell voltage, together with a long resistive wire L.
10. Establish a primary circuit configuration by attaching L's two ends to the battery connections.
11. The primary circuit's first end is attached to the cell whose EMF E is being measured, and the second end is attached to the galvanometer G.
12. It is assumed that this circuit is a secondary circuit.
13. The working theory relies on the potential over any part of the wire, which is directly proportional to the wire's length, has a uniform cross-sectional area, and has a constant current flow.