Electric charges and Electric field

The force per unit charge is known as

• Electric current

• Electric potential

• Electric field

• Electrical energy

If the charge of 1C is placed at a distance of 1m from another charge of same magnitude in vacuum, it will experience an electrical force of magnitude and nature

Consider the points lying on a straight line joining two fixed equal and opposite charges. Between the charges there is

• No point where electric field is zero

• Only one point where electric field is zero

• No point where potential is zero

• Only one point where potential is zero

Based on the arrangement of the electric field lines in the diagram, what are the charges?

• both charges are the same

• the charges are opposite

• they are neutral; no charge

Electric field at a point inside the uniformly charged sphere of radius R and charge q is

• 1

• Kq/r²

• Kqr/R³

• Zero