Study Notes on Circuit Measurement

Key Concepts on Circuit Measurement

• Instruments Needed:

  • Volt meter
  • Ammeter

• Positioning of Instruments:

  • Ammeter: Must be connected in series with the circuit to measure current.
  • Voltmeter: Must be connected in parallel with the component (bulb) to measure potential difference across it.

• Potential Difference Measurement:

  • Volt meter compares potential difference at two points: before and after the bulb.
  • Requires two points of contact for accurate measurement.

• Current Measurement:

  • Ammeter measures the current flowing through the circuit, not comparing different points.