Welcome to Part 5 of our Current Electricity series! In this video, we cover advanced concepts and problem-solving techniques in Current Electricity, an essential chapter for Class 12 Physics and a key topic for JEE Main 2026 preparation.
Electric charges at rest, constitute, static electricity. When these charges flow they, constitute current electricity.
Electric current:
The time rate of flow of electric charge i.e., electric charge flowing per second through a cross-section of conductor, is called electric current.
It is represented by the symbol I.
Its expression is, I = T charge (q)/time (t)
Its S.I. unit is ampere (A). Current flowing through a cross section of conductor is one ampere, if one coulomb charge flows through that cross section in one second.
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