What is magnetic induction?
PhysicsClass 10CBSEAnswered 28 May 2026
Answer
Magnetic induction (B) measures the strength of a magnetic field specifically, the force per unit current per unit length on a conductor in the field.
- Symbol: B | Unit: Tesla (T)
- Vector quantity.
- Formula: B = F / (IL)
- Earth's magnetic induction: ~25–65 microtesla.
Applications: MRI machines (1.5–3 T), electromagnets, electric motors.
Magnetic induction (B) is the magnetic flux density measured in Tesla, quantifying the force a magnetic field exerts on charges and currents.
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