Question

8. To measured a magnetic field between the
magnetic poles of a loud speaker, a small coil
having 30 turns and 2.5 cm² area is placed
perpendicular to the field and removed
immediately. If the total charge flown
through the coil is 75 x 10-C and the total
resistance of wire and galvanometer is 0.312,
then the magnitude of the magnetic field is
(a) 0.03 T (b) 0.3T (c) 3T (d) 3 x 10²T​

Answer 1

Answer:

Answer d)

Explanation:

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