Distinguish between a closed circuit and an open circuit, with the use of a suitable labelled diagram.

Hint: Electric circuits are widely classified as open circuit or closed circuit. This is the most common circuit type that is available in physics. Any circuits drawn in physics are widely classified into these two types of circuits first. There are not many differences in this type of circuits but understanding these circuits are very important.

Complete solution:
An electrical network is an interconnection of electrical components or a model of such an interconnection, consisting of electrical elements. An electrical circuit is a network consisting of a closed loop, giving a return path for the current or an open loop.

Closed Circuit: - A circuit is said to be closed when each part of it is made of a conductor (allowing current to pass through it) and on plugging in the key or if the circuit is complete, then current flows in the circuit.

Open Circuit: - An open circuit does not allow current to flow through it, which occurs if any of its components is not made of a conductor or the key is not plugged in or the circuit is broken.

Note:
Circuits is an important concept in physics and questions are widely asked on this topic. There are different types of questions that are asked on these topics and if the concept is understood properly, then it becomes easy to answer the question. There are many different concepts that are used with circuits like logic gates, etc. which increases the complexity of the questions, but are simple to solve and get the solution.