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प्रश्न
Two identical coils P and Q each of radius R are lying in perpendicular planes such that they have a common centre. Find the magnitude and direction of the magnetic field at the common centre of the two coils, if they carry currents equal to I and \[\sqrt{3}\] I respectively.
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उत्तर
Magnetic field at the centre of the coils due to coil P, having current I is
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