INDUCTANCE CAPACITANCE AND RESONANCE - Quiz

1) What is the effect on the transformer operated below the rated voltage?

Burn out windings Leads to interwinding leakage Transformer heated up excessively Delivers reduced secondary voltage

2) Which type of transformer induced secondary voltage is lower than primary voltage?

Step up transformer Step down transformer Core type transformer Shell type transformer

3) Why the transformer core is made as thin laminations?

To minimize eddy current losses To increase the hysterisis losses To maximize eddy current losses To increase core saturation losses

4) Which type of transformer is used for high frequency application?

Ring core transformer Ferrite core transformer Silicon steel core transformer Grain oriented core transformer

5) What is the result of hysteresis loss in magnetic material?

Back emf increases Eddy current decreases Magnetic flux increases Energy loss takes place