Current Electricity - Lecture 5 | Unacademy NEET | LIVE DAILY | NEET Physics | Mahendra Sir
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An electric current is the rate of flow of electric charge past a point or region. An electric current is said to exist when there is a net flow of electric charge through a region. In electric circuits, this charge is often carried by electrons moving through a wire. It can also be carried by ions in an electrolyte, or by both ions and electrons such as in an ionized gas (plasma).
The SI unit of electric current is the ampere, which is the flow of electric charge across a surface at the rate of one coulomb per second. The ampere (symbol: A) is an SI base unit of Electric current and is measured using a device called an ammeter.
Electric currents cause Joule heating, which creates light in incandescent light bulbs. They also create magnetic fields, which are used in motors, inductors, and generators.
The moving charged particles in an electric current are called charge carriers. In metals, one or more electrons from each atom are loosely bound to the atom and can move freely about within the metal. These conduction electrons are the charge carriers in metal conductors.
In this session, Mahendra Singh continues to deal with the students to the vast and fascinating world of current electricity while focusing on the grouping of cells.
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An electric current is the rate of flow of electric charge past a point or region. An electric current is said to exist when there is a net flow of electric charge through a region. In electric circuits, this charge is often carried by electrons moving through a wire. It can also be carried by ions in an electrolyte, or by both ions and electrons such as in an ionized gas (plasma).
The SI unit of electric current is the ampere, which is the flow of electric charge across a surface at the rate of one coulomb per second. The ampere (symbol: A) is an SI base unit of Electric current and is measured using a device called an ammeter.
Electric currents cause Joule heating, which creates light in incandescent light bulbs. They also create magnetic fields, which are used in motors, inductors, and generators.
The moving charged particles in an electric current are called charge carriers. In metals, one or more electrons from each atom are loosely bound to the atom and can move freely about within the metal. These conduction electrons are the charge carriers in metal conductors.
In this session, Mahendra Singh continues to deal with the students to the vast and fascinating world of current electricity while focusing on the grouping of cells.
Unacademy Plus Subscription Benefits: -
1. Learn from your favourite teacher
2. Dedicated DOUBT sessions
3. One Subscription, Unlimited Access
4. Real time interaction with Teachers
5. You can ask doubts in live class
6. Limited students
7. Download the videos & watch offline
#Plus_Subscription_In_Description #NEETLIVEDAILY
#UnacademyNEET #neetlivedaily #neet #unacademy #currentelectricity
5 سال پیش
در تاریخ 1398/06/09 منتشر شده
است.
112,221
بـار بازدید شده