An electric line of force is defined as the path traced by a test charge when placed in the electric field.
According to coulomb's Laws, a positive charge repels a positive charge and attracts a negative charge, therefore, an electric line of force always starts from the positive charge and ends on the negative charge.
Properties of electric lines of force :Following are the important properties of electric lines of force :
1. An electric line of force starts from the positive charge and ends on the negative charge.
2. An electric line of force does not form a closed loop like a magnetic line of force. There is no electric field inside a charged body and, therefore, the electric line of force ends on the negative charge.
3. Two electric lines of force never cross each other. The crossing of two lines of force means that there are two directions of the force on a test charge at a point which is impossible.It is well known that a body can move in one and only one direction under the action of force. Hence two electric lines of force can never cross each other.
4. The electric lines of force in the same direction repel each other and those in the opposite direction attract each other.
5. The tendency of electric lines of force is to taken easy electric path.
According to coulomb's Laws, a positive charge repels a positive charge and attracts a negative charge, therefore, an electric line of force always starts from the positive charge and ends on the negative charge.
Properties of electric lines of force :Following are the important properties of electric lines of force :
1. An electric line of force starts from the positive charge and ends on the negative charge.
2. An electric line of force does not form a closed loop like a magnetic line of force. There is no electric field inside a charged body and, therefore, the electric line of force ends on the negative charge.
3. Two electric lines of force never cross each other. The crossing of two lines of force means that there are two directions of the force on a test charge at a point which is impossible.It is well known that a body can move in one and only one direction under the action of force. Hence two electric lines of force can never cross each other.
4. The electric lines of force in the same direction repel each other and those in the opposite direction attract each other.
5. The tendency of electric lines of force is to taken easy electric path.
