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84.On connecting a battery to the two opposite corners of a diagonal of a square wire frame of side 10 cm. The magnitude of the magnetic field at the centre will be (wire is uniform) (1) Zero (2) 1 microtesla (3) 2 microtesla (4) 4 microtesla |
| Answer» 84.On connecting a battery to the two opposite corners of a diagonal of a square wire frame of side 10 cm. The magnitude of the magnetic field at the centre will be (wire is uniform) (1) Zero (2) 1 microtesla (3) 2 microtesla (4) 4 microtesla | |