Question

When current flows through a circuit, the circuit is called open circuit.
A. True
B. False

Answer 1

Hint: To solve this question, we need to know that an open circuit is the one that does not form a closed loop while a closed circuit forms a closed loop between its two ends i.e., the positive terminal and the negative terminal. Although there can be more than one closed loop, at least one should be present.

Complete answer:
Electric circuits work when they form closed loops i.e., there shouldn’t be any discontinuity in the circuit to ensure a flow of current. An open circuit is the one in which no current flows through the circuit. This happens when there is a break in the path of the current due to which it is also known as an incomplete circuit. While a closed circuit is the one in which the circuit has a continuity and current can flow in it and hence it is called as a complete circuit. To change a circuit from an open circuit to a closed one or vice versa, generally a switch is used. Thus, when current flows through a circuit, the circuit is called closed circuit.

Hence option \[(B)\] is correct i.e., the given statement is false.

Note:
When the circuit is opened, i.eThe circuit does not form a closed loop then an infinite resistance is created between the two terminals of the circuit which restrict the current to flow through the circuit. Thus, even if we apply any amount of voltage difference, current wouldn’t flow through the circuit.