Question

What is The Resistance of an Open Circuit.

Answer 1

An object's electrical resistance is a measure of its resistance to the flow of electric current. Electrical resistance and mechanical friction have some conceptual similarities. The ohm ( $\Omega$ ) is the SI unit for electrical resistance. The resistance R of an item is equal to the voltage V across it divided by the current I flowing through it.

Complete answer:
The word "open circuit" refers to a cell that has no current flowing through it. The circuit's continuity is disrupted in this case, and the current does not flow as a result. When a device is removed from any circuit, the open-circuit voltage is the difference in electric potential between two terminals. Any circuit that does not pass current when a potential difference is formed across it is said to be open, and its resistance is infinite.
A node in a circuit that is not connected, or open, is called an open circuit. In an open circuit, zero amps flow between nodes that aren't linked, implying that 0 amps flow between nodes that aren't connected. Across an open circuit, the resistance is infinite. A broken wire represents an open circuit. A resistor connected to the circuit at just one node is open for computing equivalent resistance. When calculating the equivalent resistance, an open resistor (1) contributes 0 Ohms to the equivalent resistance and (2) may be eliminated from the circuit.
0A of current Equals open circuit
The term "open circuit" refers to the presence of $\infty$ resistance in a circuit.

Note:
If both ends of an element are linked to the same node, it is shortened. A wire is used to depict a short circuit. A wire is said to contain a minimal amount of voltage, or 0 volts, which means that the voltage in a short circuit is zero. In electrical circuits, the resistance of a wire is considered insignificant, or $0\Omega$ . As a result, the resistance across a short circuit is insignificant and is taken to be zero.