(a) Write the special name given to the coil AB which has many circular turns of insulated copper wire. (b) List two factors on which the strength of the magnetic field produced by AB depends. (c) What is the effect of placing an iron core in the coil AB?

(a) Write the special name given to the coil AB which has many circula

1.	(a) Write the special name given to the coil AB which has many circular turns of insulated copper wire. (b) List two factors on which the strength of the magnetic field produced by AB depends. (c) What is the effect of placing an iron core in the coil AB?
Answer» SOLUTION :(a) Coil AB is a SOLENOID. (b) (i) Strength of the current. (ii) Number of turns in the coil. (c) The magnetic FIELD associated with the solenoid INCREASES tremendously. It BECOMES an electromagnet.