What do you meann by sensitivity of a Wheatstone bridge ? What are the conditions for it ?

What is a Wheatstone bridge ?

Draw Wheatstone bridge and write the condition for balance.

What do you mean by Balanced Wheat stone Bridge, Write the condition of balance?

When Wheatstone bridge is said to be in balanced condition ?

What is the condition for balance of a Wheatstone bridge?

what is the condition of balance in Wheatstone bridge. What happens to the condition of balance if the cell and the galvanometer are inter changed ?