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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismMagnetic torque & energyEasy2 minPYQ_2020

PhysicsEasysingle choice

Wires 1 and 2 carrying currents $i_{1}$ and $i_{2}$ respectively are inclined at an angle $θ$ to each other. What is the force on a small element $d l$ of wire 2 at a distance of $r$ from wire 1 (as shown in the figure) due to the magnetic field of wire 1?

Options:

Answer:

Solution:

Length of the component dl which is parallel to wire [1] is $d l \cos θ$ , so force on it.

$F = \frac{μ_{0}}{2 π} \frac{i_{1} i_{2}}{r} (d l \cos θ)$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:MagnetismSubtopic:Magnetic torque & energy

⏱ 2mℹ️ Source: PYQ_2020

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