Question

The diagram shows the electric field due to point charge Q. Which statements are correct? Check all that apply.

Answer 1

Answer:

The correct statements  are:

• A. The electric field is nonuniform.

• D. Charge Q is positive.

• E. If charge A moves toward charge Q, it must be a negative charge

Explanation:

The answer choices are:

• A. The electric field is nonuniform.

• B. The electric field is uniform.

• C. Charge Q is negative.

• D. Charge Q is positive.

• E. If charge A moves toward charge Q, it must be a negative charge.

• F. If charge A moves toward charge Q, it must be a positive charge.

Solution

The electric field is the electrostatic force per unit of charge,  

         $\vec E=\dfrac{\vec F}{Q}$

around around a charge, where another charge would experience the electrostatic force.

The electric field lines are shown in a diagram with arrows ditributed radially away from a positive charge and radially toward a negative charge.

Since the arrows are away from Q, Q is a positive charge: statement D.

Since the size of the arrows decreases as you move away  from Q the stregth of the field is not uniform: statement A.

Since the charge Q is positive, a negative charge would be attracted toward it: statement E.