Question

When an electric current is passed, electrons move from
(a) High potential to low potential.
(b) Low potential to high potential.
(c) Electrons flow from lower to higher potential except through power sources.
(d) Electrons flow from higher to lower potential, except through power sources

Answer 1

Electric current is the passage or flow of current from the high potential to the low potential. And as electrons are the negatively charged particles with a charge of $1.6 \times {10^{ - 19}}$ coulomb. Ensure to notice the ‘minus’ sign before the electron charge magnitude.

Complete answer:
To proceed with the question, let’s first understand the concept of the positive terminal and the negative terminal of the battery. Also to answer the question focus on the relation between the charge and the potential of the batteries side.
So, we know that the positive terminal of the battery has more potential or is at high potential and the negative terminal of the battery consists of more negative charges and is at the low potential.
And as we studied above that the electrons are negatively charged particles and also as we know that the opposite charges attract towards each other. So electrons will be attracted towards the positive charge i.e. towards high potential.
Thus, the electron will move from low potential to high potential.
Thus, from the above discussion we can say easily that the correct answer to the question is option B .i.e. from low potential to high potential.
Therefore, when an electric current is passed, electrons move from low potential to high potential.

Note:
So, the end of high potential has more positive charges and the end of the battery with low potential has more negative charges. While the electric current flows from the high potential to the low potential. So, we can say that the flow of electric current and the flow of electrons in an electric field are in opposite directions to each other.