A toroidal solenoid has 3000 turns and a mean radius of 10 cm. It has soft iron core of…
Physics · JEE Main · NTA Exams — Magnetic Effects of Current and Magnetism
A toroidal solenoid has 3000 turns and a mean radius of 10 cm. It has soft iron core of relative permeability 2000. What is the magnitude of magnetic field in the core when a current of 1 A is passed through the solenoid.
- 1.2 T
- 12 T
- 5.6 T
- 4.5 T
Answer
(B) 12 T
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