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

Question

Question

This question was previously asked in

RRB JE ECE 22 Apr 2025 Shift 1 CBT 2 Official Paper

Answer 1

The correct answer is In series with the component.

Key Points

An ammeter is used to measure the current flowing through a circuit.
To measure the current accurately, the ammeter must be connected in series with the component whose current is to be measured.
When connected in series, the same current flows through both the ammeter and the component.
If an ammeter were connected in parallel, it could cause a short circuit due to its very low internal resistance, which can be dangerous and damage the instrument.
This series connection ensures that the ammeter does not significantly alter the circuit's resistance and thus provides an accurate current reading.

Additional Information

In either series or parallel
- This statement is incorrect because an ammeter must be connected in series to measure the current correctly.
In parallel with the component
- Connecting an ammeter in parallel with a component can create a short circuit due to the ammeter's low internal resistance.
- This can lead to incorrect measurements and potential damage to the circuit and the ammeter.
In parallel with the source
- This is also incorrect because connecting an ammeter in parallel with the power source can cause a short circuit and is not the correct method for measuring current.