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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismBiot-savart's & Ampere's Circuital lawEasy2 minPYQ_2020

PhysicsEasysingle choice

An infinitely long wire carrying current $I$ is along $Y$ axis such that its one end is at point A(0, b) while the wire extends upto $+ \infty$ . The magnitude of magnetic field strength at point (a, 0).

Options:

Answer:

Solution:

$B = \frac{μ_{0} I}{4 π} \frac{i}{a} [\sin 90^{o} + \sin (- θ)] = \frac{μ_{0}}{4 π} \frac{i}{a} (1 - \sin θ)$

$= \frac{μ_{0}}{4 π} \frac{i}{a} (1 - \frac{b}{\sqrt{a^{2} + b^{2}}})$

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

⏱ 2mℹ️ Source: PYQ_2020

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