47) No load loss of a transformer has two components. They are eddy current and hysteresis loss. In which part of a transformer hysteresis loss will occur ?

48) Which material is used for the construction of the power transformer core ?

49) Which type of transformer does not isolate the secondary ?

50) Voltage stabilizers are having auto transformer with tappings or stepless variation depending upon the type of stabilizer. Auto transformer in servo stabilizer is of :

51) Single turn primary of a current transformer has a turns ratio 10:1. Which one of the following is the primary current if the current measured in secondary is 2 amperes ?