It measures voltage by balancing it against a known voltage
It measures resistance directly
It measures power in a circuit
A potentiometer measures voltage by balancing it against a known voltage, allowing for accurate voltage measurements without drawing current from the circuit.
Questions & Step-by-step Solutions
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Q
Q: What is the principle behind a potentiometer?
Solution: A potentiometer measures voltage by balancing it against a known voltage, allowing for accurate voltage measurements without drawing current from the circuit.
Steps: 4
Step 1: Understand that a potentiometer is a device used to measure voltage.
Step 2: Know that it compares the unknown voltage to a known reference voltage.
Step 3: Realize that it does this by adjusting a knob or slider to balance the two voltages.
Step 4: Remember that this method allows for accurate measurements without using any current from the circuit.
