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Actually, field means the certain area which is influenced by some energy. Electric field is the force produced by electric, more specifically by electric charge. Michael Faraday introduced the concept of this electric field. The force which acts between two charges is due to electric field. Direction of the field is determined by the direction of the force. It is exerting on a positive test charge. The direction of the electric field force is represented by electric field lines. The electric field lines originate from the positive charge and terminates at the negative charge.
The electric field force (F) is expressed by the formula F= Eq
Where, F is the electric force in newtons
E is the electric field in N/C or Volts/m
q is the electric charge in coulombs.
Basically, electric field force is determined by the amount of work done is needed to introduce a positive charge from infinity into the electric field. The more the work done is needed, more is the intensity of the electric field and more is the power of that electric field , similarly if very less amount of work is needed, then it can be said that the electric field is pretty weak.
A positive unit electric charge and a unit negative charge has equal but opposite amount of electric field force.
