Question

when electric current start flowing through the coal that produces at each point on the call

Answer 1

Electric current flowing through a coil of wire produces a magnetic field inside the coil, whose intensity is proportional to the current strength and a quantity of loops of wire spooled on the coil. This proportion can be expressed by the following formula:

H = (N/L)*I   where

 H    - magnetic intensity;

 N    - quantity of loops of wire spooled on a coil;

 L     - distance between loops of wire;

 I      - current strength.

Coils with many loops of wire are widely used as obligatory components of high-capacity electromagnets: to provide a higher intensity of a magnetic field inside the coil more loops of wire must be spooled on the coil.

Answer 2

Answer:

Magnetic field..........