INDUCTANCE CAPACITANCE AND RESONANCE - Quiz

1) Why the core of current transformer is having low reactance and low core losses?

To minimize the burden To maintain constant output To prevent high static shield To minimize the error in reading

2) Which power loss is assessed by open - circuit test on transformer?

Hysteresis loss only Eddy current loss only Copper loss Core loss

3) Which material is used to make core of power transformer?

Soft iron Rolled steel Copper alloy Cold rolled grain oriented

4) How to determine copper loss in a transformer?

Ratio test Impulse test Short circuit test Open circuit test

5) Why ferrite core is used in radio receivers?

To reduce the constant losses To reduce electric interference To increase the quality of sound To increase the efficiency of receivers