A closed circuit is in the form of regular hexagon of side 'a'. If the current carries 'I'. What is the magnetic induction (B) at the centre of the hexagonal.
⚠️Detailed solution is must⚠️.
Answers
Answer:
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Explanation:
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Answer: μ. I.√3/ π.a
Given: Closed-circuit in form of Hexagon with side A carrying current (I)
To Find: Magnetic induction (B) at the center of Hexagon
Step-by-step explanation:
Suppose ABCDEF is the regular hexagon with side A carrying current (I) let O be the center of the hexagon.
Now, we know the formula for magnetic induction between two points.
B= μ. I. (sinα+sinβ)/ 4π.r
Since it’s a regular hexagon. Thus, α=β= 30°
Now, let’s find magnetic induction at O due to section AB
B(AB)= μ. I. (sin30°+sin30°)/ 4π.r
= μ. I. (sin30°)/ 2π.r ……………… (1)
In the above equation, we need to find the value of r which is a perpendicular distance from center O to section AB.
Drop of perpendicular bisector OM to AB
Now, in triangle OAM
Tan30°= AM/OM
⇒ 1/√3= a/2r
⇒ r= √3a/2 …………….. (2)
From (1) and (2)
BAB= μ. I.sin30°/ 2π.(√3a/2)
BAB= μ. I/ 2π.√3a
Hence, the magnetic field is due to the whole hexagon at center O= 6. B(AB)
B(at the center of the hexagon)= 6.μ. I/ 2π.√3a
B(at the center of the hexagon)= μ. I.√3/ π.a
Project code:#SPJ2