Give two reasons why the earth pin in a three-pin plug is longer than the other pins.

What is the difference in applications of ;Fleming’s Right hand Rule and Fleming’s Left Hand Rule?

A transformer is not considered to be an amplifier.Explain

Why is that when a bird lands on overhead electric wires it is not electrocuted but human being it is

Differentiate between Zener breakdown and Avalanche breakdown as used in electronics.  

state the reason why current produced by a simple cell falls rapidly when the cell is being used.

Why is repulsion the best method of testing magnetism

Why is it that a transformer is always feed with an a.c and not a d.c current?