Question
Download Solution PDFThe earth's magnetic field at a given point is 0.5 × 10-5 Wbm-2. This field is to be annulled by magnetic induction at the centre of a circular conducting loop of radius 5.0 cm. The current required to be flown in the loop is nearly:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven, Earth’s magnetic field at a point
BE = 0.5 × 10-5 Wbm-2
The radius of a circular ring, r = 5 cm
So, for the field to be annulled by magnetic induction at the centre of the circular conducting loop of radius 5 cm, then BE = BR [Magnetic field at ring centre]
i = 0.4 A
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