Manipulating AC And DC

Question 1

Transformers

Answer 1

Electromagnetic induction to covert AC at one voltage to AC at bother voltage

Primary coil - Ac input
Secondary coil - Ac output

Wound around soft iron former

Question 2

Rectifiers

Answer 2

AC to DC

Use diodes as non return

Question 3

Static inverter

Answer 3

D.C. to AC