Reasons for taking the melting point of a solid sample

Definition of melting point:

The melting point of solid is defined as the temperature at which the solid exists in equilibrium with its liquid under an external pressure of one atmosphere.

Reason:

The melting point is an important physical property of a compound.

1) The melting point can be used to identify a substance.

2) As an indication of its purity.

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current

2b2t

explanation:

2b2t