Question

A toroidal electromagnet has 1000 turns and mean radius of 0.1m . The magnetic core has a relative permeability of 2000. If a current of 1A is passed. Calculate the magnetic induction ​

Answer 1

Answer:

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Explanation:

Number of turns/length

n=(1000)/2πr

where r=0⋅1m , μr=2000, I=1A, Magnetic induction B=?

B=μH= (μ₀μr)nI

=4π×10⁻⁷×2000× (1000)/2πr× 1

B =(0⋅8π) / 2π×0⋅1

B = 4tesla

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