SSC JE Electrical 2019 with solution SET-1
 Which of the following is the correct relation regarding coupled coils?

M = (L1 − L2)/2
M = (L1 + L2)/2
M ≤ (L1L2)0.5
M > (L1L2)0.5

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SSC JE Electrical 2019 with solution SET-1
 H = ____is the expression for the magnetic field due to an infinite linear current-carrying conductor

(μI ⁄ 2r) A/m
(I ⁄ 2Πr) A/m
(μI ⁄ 2Πr) A/m
(I ⁄ 2r) A/m

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