Physics
Grade-8
Easy
Question
Choose the incorrect statement from the statements given:
- Electric force may be attractive or repulsive in nature
- The electric force depends upon the medium between the charges
- The electric force is the weakest fundamental force in nature
- The electric force depends on the distance between the charges
Hint:
Gravitational forces – Gravitational force is the force of attraction which any two masses in the universe feels towards each other. This is the weakest of all.
The correct answer is: The electric force is the weakest fundamental force in nature
The electromagnetic force is a very strong, long-range force with unlimited range that acts between any two objects possessing an electric charge. It is the fundamental interaction that binds electrons to nuclei to form atoms and binds atoms together in molecules and solids.
Related Questions to study
Physics
Which of the given physical quantities is/are not a vector?
Which of the given physical quantities is/are not a vector?
PhysicsGrade-8
Physics
Find the direction of force acting on the small positive test qo due to a negatively charged sphere of charge Q shown in the given figure:
Find the direction of force acting on the small positive test qo due to a negatively charged sphere of charge Q shown in the given figure:
PhysicsGrade-8
Physics
Choose the correct statement from the following statements given:
Choose the correct statement from the following statements given:
PhysicsGrade-8
Physics
If we increase the magnitude of the two charges the electric force_____________.
If we increase the magnitude of the two charges the electric force_____________.
PhysicsGrade-8
Physics
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.
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.
PhysicsGrade-8
Physics
Which one of the following is a vector quantity?
Which one of the following is a vector quantity?
PhysicsGrade-8
Physics
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 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.
PhysicsGrade-8
Physics
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.
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.
PhysicsGrade-8
Physics
The electric force acting between two charges doesn’t depend upon:
The electric force acting between two charges doesn’t depend upon:
PhysicsGrade-8
Physics
Which of the given physical quantities is/are vector? Choose the most suitable option.
Which of the given physical quantities is/are vector? Choose the most suitable option.
PhysicsGrade-8
Physics
The unit of the charge is_________.
- The SI unit of length is meter.
- The SI unit of force is Newton.
The unit of the charge is_________.
PhysicsGrade-8
- The SI unit of length is meter.
- The SI unit of force is Newton.
Physics
The electric force acting between two charges depends upon:
The electric force acting between two charges depends upon:
PhysicsGrade-8
Physics
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.
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.
PhysicsGrade-8
Physics
A test charge may be of any magnitude.
A test charge may be of any magnitude.
PhysicsGrade-8
Physics
The S.I. unit of electric field strength is __________.
The S.I. unit of electric field strength is __________.
PhysicsGrade-8
