Question

explain primary coil and secondary coli​

Answer 1

Answer:

Common primary minerals in soil environments include: silicates, oxides of iron (Fe), zircon (Zr) and titanium (Ti), and phosphates (P). Secondary minerals are re-crystallized or transformed products of the chemical breakdown and/or alteration of primary minerals under ambient conditions.

Answer 2

Answer:

The two coils are called the primary and secondary coils. In normal use, the input voltage is placed on the primary, and the secondary produces the transformed output voltage. Not only does the iron core trap the magnetic field created by the primary coil, its magnetization increases the field strength.

Explanation:

Hope it helps you