Ex

  Physics (NTSE/Olympiad)  

2. Magnetic Effect of Current

Magnetic Force

Magnetic Force
Force on a Current Carrying Wire due to Magnetic Field :
Introduction : A current carrying conductor produces a magnetic field around it. When it is placed in a magnetic field, the two magnetic fields interact. A force acts on the conductor.

Force of an Conductor
Expression : It is found by calculation that if the conductor of, length l be carrying a current I lying inside a magnetic field of intensity B and making an angle θ with it, the force acting on it is given by -
F = Il B sinθ

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