WRITE A BRIEF NOTE ON ELECTRIC CURRENT FOR CLASS 10TH
Answers
Explanation:
answer :
Electric current is rate of flow of electric charge or the amount of charge flowing through a particular area in unit time.
Until the discovery of electrons, the electric current was considered to be a flow of positive charge and the direction was considered from positive terminal of the battery to the negative terminal.
In reality, electric current is flow of negatively charges particles called electrons. These flow from negative terminal of the battery to the positive terminal.
As a convention, the direction of current is taken opposite to the direction of flow of electrons.
Explanation:
An electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is measured as the net rate of flow of electric charge through a surface or into a control volume. The moving particles are called charge carriers, which may be one of several types of particles, depending on the conductor. In electric circuits the charge carriers are often electrons moving through a wire. In semiconductors they can be electrons or holes. In a electrolyte the charge carriers are ions, while in plasma, an ionized gas, they are ions and electrons.
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