A current of 0.1 A circulates around a coil of 100 turns and having a – McqOptions

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1.	A current of 0.1 A circulates around a coil of 100 turns and having a radius equal to 5cm. The magnetic field set up at the centre of the coil is (m0 = 4p ´ 10?7 weber/amp-metre) [DPMT 2002]
A.	2 ´ 10?5 Tesla
B.	4 ´ 10?5 Tesla
C.	8p ´ 10?5 Tesla
D.	4p ´ 10?5 Tesla
Answer» E.

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