The direction of an electric current is by convention the direction in which a positive charge would move. Thus, the current in the external circuit is directed away from the positive terminal and toward the negative terminal of the battery. Electrons would actually move through the wires in the opposite direction.
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Here, A is the area of the plates of the capacitor and d is the distance between the plates of the capacitor, which you will study in higher classes.
View Full Answer(1)Does the potential difference between two points depend on the choice of zero potential or zero potential energy?
Potential difference between two points is always a difference therefore it does not depend on the choice of zero potential.
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The function of the pinna is to act as a kind of funnel which assists in directing the sound further into the ear.
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Dear candidate,
Sound also acts like a wave. Mountains and deep valley areas are surrounded by the rocky surfaces of mountains, trees, etc and the area among them is also dense. Thus, when the sound wave touches the rocky surface, it comes back, and since there is no specific direction, it echoes everywhere.
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As C=(1/ V)Q, can you say that the capacitor C is proportional to the charge Q?
Can two equipotential surfaces cut each other?
Does potential decrease or increase in the direction of electric field?
Is Gauss's law valid only for symmetrical charge distributions?
Do you Know about Dot Product?
What is the role of external pinna in the outer ear?
Why echoes are easily produced in mountains and deep valleys?