Question

Tap key is used to make and break the circuits
A- True
B- False

Answer 1

Hint:Tap keys are the most commonly used component in electrical circuits. While setting up experiments in undergraduate studies tap keys are the most commonly used. For example, a tap key is the most essential for testing the balance of a Wheatstone bridge.

Complete step by step answer:
The role of a tap key is to stop or start the current in the circuit, in a particular branch in the circuit. Tapping keys are mostly used for providing momentary contact in an open circuit. For example, if we just wanted to check the deflection in a galvanometer, we can use the tap key, thus, the device used to make or break a circuit is called a switch or a tap key. Hence, the given statement is True.
So, the correct option is (A).
Additional information:
The most common device which is used to measure electric current in the circuit is the ammeter. It is always connected in series in the circuit. Another most common device is the voltameter and this is used to measure the potential difference across any component in the circuit. There is another instrument called a galvanometer which is used to detect the current.

Note: Electric circuit comprises different components including cell or the driving source, electrical components, connecting wires, etc. The way to represent a circuit is through representation, in which different components are represented with symbols and that is called a circuit diagram.