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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismBiot-savart's & Ampere's Circuital lawEasy2 minPYQ_2024

PhysicsEasysingle choice

Which of the following graph represents the variation of magnetic flux density $B$ with distance $r$ for a straight long wire carrying an electric current?

Options:

Answer:

Solution:

Magnetic field density $B$ due to long straight current carrying conductor at a distance $r$ is given as $B = \frac{μ _{0}}{2 π} \cdot \frac{i}{r}$ i.e. $B \propto \frac{1}{r}$ Hence, option (3) is correct.

Stream:VITEEESubject:PhysicsTopic:MagnetismSubtopic:Biot-savart's & Ampere's Circuital law

⏱ 2mℹ️ Source: PYQ_2024

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