Electrical Interview Questions
1.Transformers are used to change the value of ?
Answer - Voltage
2.The path of the magnetic flux in a transformer has
Answer - Low reluctance
3.The transformer is a
Answer - Static device
4.Transformer works on principle of
Answer - Both self and mutual induction
- Rating of transformer is given in
Answer - KVa
6.If the higher voltage is given to the primary and low voltage is taken from the secondary of transformer ,it is called
Answer - Step-down
7.Different types of transformer are
Answers - Core type,Shell type,Berry type,
8.If a lower voltage is given to the primary and higher voltage is taken from the secondary of transformer ,it is called
Answer - Step-up
9.The transformer ratio of a transformer is
Answer - N2/N1