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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismBiot-savart's & Ampere's Circuital lawEasy2 minPYQ_2002

PhysicsEasysingle choice

The magnetic field of a given length of wire for a single turn coil at the centre is ' $B$ ' then, its value for two turns coil for the same wire is:NEET 2002

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Answer:

Solution:

Here $B_{1} = B = \frac{μ _{0} I}{2 R}$ $B_{2} = \frac{μ _{0} ( 2 I )}{2 r} ∴ 2 \times 2 π r = 2 π R \Rightarrow r = R /2$ So, $B_{2} = 4 B$

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

⏱ 2mℹ️ Source: PYQ_2002

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