Question

The magnetic field at a centre of current carrying circular loop is 3 T. If current . …...through the circular loop is doubled, the magnetic field will be _____​

Answer 1

Answer:

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Explanation:

Magnetic field due to current carrying circular loop of radius a at a point on the axis at a distance from the centre is

B- 12 (a²+x²)/2

→ 54 × 10 - 10x1x2x(3×10-2)² [(3 x 10 2)2 + (4 x 10-22

⇒1-11.94A

..Magnetic field at the centre 12

in a 107 x 11.94 x 2m

3 x 10 2

= 250µT.