Question

what are the sources of electric current what is open circuit​

Answer 1

Explanation:

Definition of open-circuit voltage. The box is any two-terminal device, such as a battery or solar cell. The two terminals are not connected to anything (an "open circuit"), so no current can flow into or out of either terminal. The voltage voc between the terminals is the open-circuit voltage of the device.

Answer 2

Answer:

An open circuit implies that the two terminals are points are externally disconnected, which is equivalent to a resistance R=∞ . ... This means that zero current can flow between the two terminals, regardless of any voltage difference

Explanation:

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