A coil of 50 turns and 10cm diameter is made out of a wire

Last updated: 6/7/2023

A coil of 50 turns and 10cm diameter is made out of a wire of resistivity 2 x 10 6 cm and cross sectional radius 0 1mm The coil is connected to a source of EMF 10V and of negligible internal resistance a Find the current through the coil b What must be potential difference across the coil so as to nullify the horizontal component of earth s magnetic field 0 314 10 T at the centre of the coil How should the coil be placed to achieve this result a 1A b 0 5V coil is placed in a plane normal to magnetic meridian dis def 60 in I