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two concentric circular coil A and B have radii 25cm and 15 cm. and carrying current 10A and 15A respectively A has 24 turns B has 18 direction ofcurrent is in opposite order. The magnetic induction at the common centre of the coil will be |
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Answer» ong>Answer: ANSWER B
= 2r 1
n 1
μ
i 1
= 2×25×10 −2
24×μ 0
×10
=480μ 0
T GOING into the plane B 2
= 2r 2
n 2
μ 0
i 2
= 2×15×10 −2
18×μ 0
×15
=900μ 0
T going out of the plane Bnet=B 2
−B 1
=(900−480)μ 0
=420μ 0
T Explanation: I hope this is helpful to you |
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