An instrument that can detect the presence of a current in a circuit is known as ______.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. ammeter
One tool for measuring the current in a circuit is an ammeter.
- Power values are measured with a power metre.
- The potential difference between two locations in a circuit is measured with a voltmeter.
- One element of an electric circuit that is incapable of measuring anything is a resistor.
- An instrument that can identify whether current is present in a circuit is a galvanometer.
- Depending on which way the current is flowing, a galvanometer's pointer can deflect to the left or right of the zero mark.