การดู
8:54
Coercivity & retentivity (Permanent & electromagnets) | Magnetism & matter | Physics | Khan Academy
8:41
Campaign finance | Political participation | US government and civics | Khan Academy
3:24
Soaps and detergents | Carbon and its compounds | Class 10 | Chemistry | Khan Academy
11:28
What are inductors?(self-inductance) | Electromagnetic Induction | Class 12 | Physics | Khan Academy
6:29
Constrained optimization introduction
13:40
Hysteresis & magnetic retention | Magnetism & matter | Physics | Khan Academy
2:53
LearnStorm Growth Mindset: How to write a SMART goal
7:20
Stress management | Processing the Environment | MCAT | Khan Academy
