What is the main advantage of using a potentiometer over a voltmeter?
Practice Questions
1 question
Q1
What is the main advantage of using a potentiometer over a voltmeter?
It is cheaper.
It provides more accurate measurements.
It is easier to use.
It can measure AC voltages.
A potentiometer provides more accurate measurements because it measures voltage by balancing rather than drawing current from the circuit.
Questions & Step-by-step Solutions
1 item
Q
Q: What is the main advantage of using a potentiometer over a voltmeter?
Solution: A potentiometer provides more accurate measurements because it measures voltage by balancing rather than drawing current from the circuit.
Steps: 5
Step 1: Understand what a voltmeter does. A voltmeter measures voltage by connecting to a circuit and drawing some current from it.
Step 2: Learn about a potentiometer. A potentiometer measures voltage without drawing current from the circuit.
Step 3: Recognize the impact of drawing current. When a voltmeter draws current, it can affect the circuit and give less accurate readings.
Step 4: Understand balancing in a potentiometer. A potentiometer measures voltage by balancing it against a known voltage, which does not disturb the circuit.
Step 5: Conclude that the main advantage of a potentiometer is its ability to provide more accurate voltage measurements without affecting the circuit.
