Assertion: In a simple electric circuit, positive terminal of the battery is a point of lowest potential.
Reason: The electronic current flow in a circuit is from a point of highest potential to a point of lowest potential.
A) Both assertion and reason are correct and reason is the correct explanation for assertion.
B) Both assertion and reason are correct but the reason is not the correct explanation for assertion.
C) Assertion is correct but reason is incorrect.
D) Both assertion and reason are incorrect.

Hint: We know that in an electric circuit, electric current flow from the point of higher potential to the lower potential. The charge on an electron is negative, and the movement of the electron is what causes the electric current.

Complete step by Step solution:
In a simple electric circuit, electrons flow from the negative - terminal to the positive - terminal. But in general, the positive - terminal of the battery is considered to be the point of higher potential.

Therefore, the Assertion is wrong.

The electronic current flow is generated by the movement of the electrons from the negative terminal to the positive terminal. The positive terminal is the point of highest potential and the negative terminal is the point of lowest potential. Hence, the electronic current flow is the flow of electrons from the point of lowest potential to the point of the highest terminal.

Therefore, the reason is also wrong.

Hence, option (D) Both assertion and reason are incorrect, is the correct option.


Additional information:
We can make things easier to remember as negative terminals must be rich in negative charges, i.e. electrons. So, the starting point of the flow of electrons must be from the negative terminal. As learned in mathematics, anything positive must always be greater than anything negative. Therefore, the potential of the positive terminal, in general, is higher than the negative terminal.

Note: We must not confuse between electric current and electronic current. The electric current is the current flow in the reverse direction of the electron flow. This is also known as the conventional current. The electronic current is the flow of electrons from the negative terminal to the positive terminal. They are opposite to each other.