MHT CET Physics question

Not in JEE Advanced syllabus

Why should the plane of the coil of T.G. be parallel to the magnetic meridian?

(A)To avoid the influence of earth's magnetic field
(B)To increase the influence of earth's magnetic field
(C)To make earth's magnetic field perpendicular to that due to the current in the coilCorrect
(D)For some other reason

Answer: (C)

Solution

With the coil in the meridian, the coil's field is along the east-west axis and so perpendicular to the Earth's horizontal field, which

Create a free account to read the complete working, and practise questions like this in a timed test.

Question ID VK-078465