Скачать или смотреть Electric Current, Types, Free Electrons & Drift Velocity | Physics Class 12 | NEET MDCAT

In this video, we explain the important concepts of Electric Current in a simple way for Class 12, NEET, and MDCAT Physics students.

👉 Topics covered in this lecture:

What is Electric Current?

Formula of Current (
𝐼
=
𝑄
/
𝑡
I=Q/t)

Unit of Current → Ampere

Types of Current: Conventional Current vs Electronic Current

Role of Free Electrons in Metals

Concept of Drift Velocity and its definition

Effect of potential difference, length, and temperature on drift velocity

⚡ Key Formulae for Revision:

𝐼
=
𝑄
𝑡
I=
t
Q
​


1 Ampere = 1 Coulomb / 1 second

𝑣
𝑑
=
𝑉
𝜌
𝐿
v
d
​

=
ρL
V
​

(Drift velocity formula)

This lecture will help you understand and revise quickly for exams.

📌 Timestamps

00:00 – Introduction
00:30 – Definition of Electric Current
01:30 – Unit of Current (Ampere)
02:30 – Conventional vs Electronic Current
04:00 – Free Electrons in Metals
06:00 – Drift Velocity (Definition)
08:00 – Effect of V, L, and Temperature on Drift Velocity
10:00 – Final Recap

📢 Caption (to show inside video at start)

“Electric Current, Types, Free Electrons & Drift Velocity | Physics Class 12 | NEET MDCAT”