Physics
Grade-8
Easy
Question
The concept of electric field lines was discovered by:
- Newton
- Coulomb
- Faraday
- Ampere
Hint:
They were first introduced by Michael Faraday himself
The correct answer is: Faraday
Electric field lines are an excellent way of visualising electric fields. They were first introduced by Michael Faraday himself. A field line is drawn tangentially to the net at a point. Thus at any point, the tangent to the electric field line matches the direction of the electric field at that point.
Related Questions to study
Physics
The figure shows some of the electric field lines corresponding to an electric field. The figure suggests that the electric field is:
The figure shows some of the electric field lines corresponding to an electric field. The figure suggests that the electric field is:
PhysicsGrade-8
Physics
Select the correct statements about electric field lines.
I. Two electric field lines can cross each other.
II. They start from a positive charge and may end at a negative charge.
III. Electric field lines form closed loops.
Select the correct statements about electric field lines.
I. Two electric field lines can cross each other.
II. They start from a positive charge and may end at a negative charge.
III. Electric field lines form closed loops.
PhysicsGrade-8
Physics
The electric field lines due to a single negative charge.
a. 
, b. 
c. 
d. 
are represented by which one of the following figures?
The electric field lines due to a single negative charge.
a. , b.
c. d.
are represented by which one of the following figures?
PhysicsGrade-8
Physics
Which of the following information do the electric field lines provide?
Which of the following information do the electric field lines provide?
PhysicsGrade-8
Physics
The electric field strength at a point depends upon:
The electric field strength at a point depends upon:
PhysicsGrade-8
Physics
Which of these is false about the electric field lines?
Which of these is false about the electric field lines?
PhysicsGrade-8
Physics
A test charge may be of any magnitude.
A test charge may be of any magnitude.
PhysicsGrade-8
Physics
Which of the following information is provided by the electric field lines?
Which of the following information is provided by the electric field lines?
PhysicsGrade-8
Physics
For a negative charge, the field line move _____ the charge.
For a negative charge, the field line move _____ the charge.
PhysicsGrade-8
Physics
The direction of force and the direction of electric field strength is always opposite.
The direction of force and the direction of electric field strength is always opposite.
PhysicsGrade-8
Physics
The field line moves towards the positive charge.
The field line moves towards the positive charge.
PhysicsGrade-8
Physics
A test charge is always taken ________ and ____________.
A test charge is always taken ________ and ____________.
PhysicsGrade-8
Physics
The field lines do not _____ with each other.
The field lines do not _____ with each other.
PhysicsGrade-8
Physics
The ________ at a point on the field lines gives the direction of the electric field.
The ________ at a point on the field lines gives the direction of the electric field.
PhysicsGrade-8
Physics
The electric field lines are __________ lines.
The electric field lines are __________ lines.
PhysicsGrade-8
