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An element `vec(dl)= dxuarr` (where dx = 1 cm) is placed at the origin and carries a large current I = 10 Amp. What is the mag. field on the Y-axis at a distance of 0.5 meter

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in 12th Physics by (6.7k points)
An element `vec(dl)= dxuarr` (where dx = 1 cm) is placed at the origin and carries a large current I = 10 Amp. What is the mag. field on the Y-axis at a distance of 0.5 meter ?
Options:
(a) `2xx 10^(-8) hatk T` (b) `4xx 10^(-8) hatk T` (c) `-2xx 10^(-8) hatk T` (d) `-4xx 10^(-8) hatk T`

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