Find the direction of force acting on the small positive test q_o due to a negatively charged sphere of charge Q shown in the given figure:

Choose the correct statement from the following statements given:

If we increase the magnitude of the two charges the electric force_____________.

If the electric field strength due to a charged sphere at a point is 2 N/C, then find the magnitude of the charge placed at a point where the electric force acting due to the charged sphere is 12N.

Which one of the following is a vector quantity?

If a charged sphere is exerting a force of 18N on a charge of 2C at a point, then find the electric field strength at that point.

If the electric field strength due to a charged sphere at a point is 3 N/C, then find the force acting on a charge of 2C placed at that point.

The electric force acting between two charges doesn’t depend upon:

Which of the given physical quantities is/are vector? Choose the most suitable option.

The unit of the charge is_________.

• The SI unit of length is meter.
• The SI unit of force is Newton.

The electric force acting between two charges depends upon:

If a charged sphere is exerting a force of 8N on a charge of 4C at a point, then find the electric field strength at that point.

A test charge may be of any magnitude.

The S.I. unit of electric field strength is __________.

A test charge is always taken ________ and ____________.

A ________ charge shows the direction of electric force at a point due to a charged body.

• A test charge is a charge with a magnitude so small that placing it at a point has a negligible affect on the field around the point.
• A positive test charge is a unit positive charge which is used to determine the strength and direction of an electric field.