In an electric circuit, what is the correct way to connect an ammeter?

The correct answer is In series with the component.

Key Points

• An ammeter is always connected in series with the component being measured to ensure that the entire current flows through the ammeter.
• This connection allows the ammeter to accurately measure the current passing through the circuit.
• Connecting an ammeter in parallel can result in damage to the ammeter due to excessive current flow, as its internal resistance is very low.
• The low internal resistance of an ammeter is designed to minimize voltage drop across it, ensuring accurate current measurement.
• Incorrect connections, such as in parallel, can also cause short circuits and disrupt the circuit's functionality.

Additional Information

• Ammeter:
  • An ammeter is a device used to measure the electric current in a circuit.
  • It is calibrated in amperes (A), milliamperes (mA), or microamperes (μA).
• Series Connection:
  • In a series connection, components are connected end-to-end so that the same current flows through each component.
  • This type of connection is crucial for devices like ammeters to measure current accurately.
• Parallel Connection:
  • In a parallel connection, components are connected across the same two points, sharing the same voltage.
  • While suitable for devices like voltmeters, it is unsuitable for ammeters.
• Internal Resistance of an Ammeter:
  • An ammeter has a very low internal resistance to avoid significant voltage drops across it.
  • This design allows it to measure current without affecting the circuit's operation.
• Short Circuit:
  • A short circuit occurs when a low-resistance path bypasses a circuit's intended path, leading to excessive current flow.
  • Connecting an ammeter in parallel can result in a short circuit due to its low resistance.