Theorems and Laws [1]
State Tangent Law in magnetism.
Tangent law states that, if a magnetic field ‘B’ is applied at right angles to the horizontal component of the earth's field BH, the needle comes to equilibrium at an angle ‘ to the magnetic meridian such that, tan θ = `B/B_H`.
Key Points
Key Points: Bar Magnet and Solenoid Analogy
- A bar magnet behaves like a solenoid
- Both produce similar magnetic field patterns
- Solenoid Relation: M = NIA
