What is true about the electric field around an electric charge?5 min read

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Because positive charges repel each other, the electric field around an isolated positive charge is oriented radially outward. When they are represented by lines of force, or field lines, electric fields are depicted as starting on positive charges and terminating on negative charges.

Which of the following statements about an electric field is true?

C. Electric field lines do not form any closed loops. The statement is true because the electric field lines start from positive charge and end on negative charge. Since the starting and ending point of the electric field lines is different, a loop can never be closed.

What is the relation between electric charge and electric field?

The electric field is defined mathematically as a vector field that can be associated with each point in space, the force per unit charge exerted on a positive test charge at rest at that point. The electric field is generated by the electric charge or by time-varying magnetic fields.

What is the electric field around the point charge?

The electric field of a point charge can be obtained from Coulomb’s law: The electric field is radially outward from the point charge in all directions. The circles represent spherical equipotential surfaces. The electric field from any number of point charges can be obtained from a vector sum of the individual fields.

What is true about the direction of the electric field?

The direction of the electric field is always directed in the direction that a positive test charge would be pushed or pulled if placed in the space surrounding the source charge.

What is the electric field around the point charge?

The electric field of a point charge can be obtained from Coulomb’s law: The electric field is radially outward from the point charge in all directions. The circles represent spherical equipotential surfaces. The electric field from any number of point charges can be obtained from a vector sum of the individual fields.

Which statement is not true for an electric field?

Electric field lines cannot be taken as continuous curve.

Which of the following statement is incorrect about electro field?

Electric field lines never cross each other and point from positive toward negative charge. They do not form closed loops and always start from a positive charge and end on a negative charge. The correct answer is C.

Does electric field increase with charge?

For example, if an electric charge Q has an electric field of magnitude E then an electric charge of 2*Q would have an electric field of magnitude 2*E. As the electric charge increases in amount or quantity its electric field also increases in magnitude.

Does electric field change with charge?

From the above formula it can be seen that the electric field due to a point charge is everywhere directed away from the charge if it is positive, and toward the charge if it is negative, and its magnitude decreases with the inverse square of the distance from the charge.

Is the electric field of a point charge is uniform?

So, a point charge does not create a uniform electric field. Again, the electric field decreases with increasing distance from the line so it does not create a uniform electric field.

Is electric field in the same direction as current?

The current always flows in the same direction as the electric field. The electrons flow in the opposite direction, because they are negatively charged. The direction of an electric field line is defined as the direction a positive test charge would accelerate if put in the field at the point of interest.

Why the direction of electric field is from positive to negative?

Positive charge created a field that pointed radially away from because it always repelled the positive test charge. But a negative charge creates an electric field that points radially into because it’s always attracting a positive test charge.

What does the direction of an electric field depend on?

The direction of the force that is exerted on a negative charge is opposite that which is exerted on a positive charge. Because an electric field has both magnitude and direction, the direction of the force on a positive charge is chosen arbitrarily as the direction of the electric field.

Which of the following statement is correct the electric field at a point?

Electric field at a point is continuous if there is no charge at that point. And the field is discontinuous if there is charge at that point. So both options (b) and (c) are correct.

Which of the following statements is true about electric fields and electric forces?

Answer and Explanation: In the given statement (c) is true, Electric forces cause the objects to repel or attract each other.

Which of the following statements is are correct regarding the electric field produced by?

Option D: Induced electric field lines due to changing magnetic field form closed curves.

What is the electric field around the point charge?

The electric field of a point charge can be obtained from Coulomb’s law: The electric field is radially outward from the point charge in all directions. The circles represent spherical equipotential surfaces. The electric field from any number of point charges can be obtained from a vector sum of the individual fields.

What is true about the direction of the electric field?

The direction of the electric field is always directed in the direction that a positive test charge would be pushed or pulled if placed in the space surrounding the source charge.

Which among the following is false about electric field?

Which among the following is false about electric field lines? Explanation: Electric lines of force are always diverging from positive charge and they converge at a negative charge. Besides, they repel each other because of repulsion between two similar charges.

Which of the following statement is correct the electric field at a point?

Electric field at a point is continuous if there is no charge at that point. And the field is discontinuous if there is charge at that point. So both options (b) and (c) are correct.

Which of the following is the correct electric field expression?

Explanation: Electric field is the force per unit charge hence, the correct expression among the following is: E=F/Q.