The magnetic field sensor coil is made of copper wire with a diameter of 0.2
mm. The coil radius is 1 cm. The specific resistance is 1.7 ⋅ 10−8 ohms ⋅ m.
The sensor detects the induction of a magnetic field by the charge that flows
through the coil closed to the galvanometer when it is introduced into the
magnetic field so that the axis of the coil coincides with the direction of the
field. Determine the magnetic field induction if a charge of 10−4 Cells leaked
through the galvanometer when the coil was brought into the field.