how does a tangent determines the direction of magnetic field

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Solution

According to Faraday, magnetic field line is an imaginary curve, the tangent to which at any point gives us the direction of magnetic field $\underset{B}{\to}$ at that point.

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how does a tangent determines the direction of magnetic field

According to Faraday, magnetic field line is an imaginary curve, the tangent to which at any point gives us the direction of magnetic field →B at that point.

According to Faraday, magnetic field line is an imaginary curve, the tangent to which at any point gives us the direction of magnetic field $\underset{B}{\to}$ at that point.