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To detect electric current using a galv...

To detect electric current using a galvanoscope, the plane of the coil is placed along magnetic meridian. What happens if the plane of coil is along east-west direction ?

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Will the magnetic needle show any deflection if the magnetic field produced due to the flow electric current is along the same direction as the earth.s magnetic field ?
How do you detect the flow of electric current in such case ?
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