A tangent galvanometer has a coil of 25 turns and radius of 15 cm. The – McqOptions

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1.	A tangent galvanometer has a coil of 25 turns and radius of 15 cm. The horizontal component of the earth?s magnetic field is 3 ´ 10?5 T. The current required to produce a deflection of 45o in it, is [MP PMT 2000]
A.	0.29 A
B.	1.2 A
C.	3.6 ´ 10?5 A
D.	0.14 A
Answer» B. 1.2 A

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