Transformers Calculations

Question 1

What do step up transformers do? What do step down transformers do?

Answer 1

Increase the potential difference of an electricity supply

Decrease the potential difference of an electricity supply

Question 2

Transformer Formula to figure out potential difference

Answer 2

Potential difference in primary coil / Potential difference in secondary coil = number of turns in primary coil / number of turns in secondary coil
(Given in exam)

Question 3

_______ of primary coil = ______ of secondary coil

Answer 3

power of primary coil = power of secondary coil
POWER = Current x Potential difference (Poison ivy)
If transformer is 100 percent efficient
(Given in exam)