Identify the above given figure and state one use. (1)
ii. What will be the pattern of field lines inside the above given figure? (1)
iii. Comment on the measure of magnetic field inside the above given figure. (1)
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(1) It is a electromagnet .
It uses are : used in motors and generators
(2)Field line patterns show the direction and shape of a magnetic field. ... A magnetic field is also created when an electric current moves through a coil of wire. Plotting compasses can be used to show the shape and direction of the magnetic field created by a coil of wire.
(3)The magnetic field strength of an electromagnet is therefore determined by the ampere turns of the coil with the more turns of wire in the coil the greater will be the strength of the magnetic field.
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