Give two reasons why the earth pin in a three-pin plug is longer than the other pins.
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Teachers Of Physics Latest Questions
Why is it that the magnetic strength is high at the poles
state three ways in which the strength of magnetic field can be increased
Why is repulsion the best method of testing magnetism
state the reason why current produced by a simple cell falls rapidly when the cell is being used.
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