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The electric field created by a point charge is given by the formula E = k*q/r^2, where k is the Coulomb's constant, q is the charge, and r is the distance from the charge. Plugging in the values, we get E = (9 x 10^9 N m^2/C^2) * (4 x 10^-6 C) / (0.03 m)^2. The electric field at 3 cm from a -4 mC charge is approximately 80,000 N/C directed towards the charge.

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What is true about an electric field around a negative charge?

The electric field around a negative charge points radially inward towards the charge. The field lines move from areas of higher potential to lower potential. The magnitude of the electric field decreases with distance from the negative charge.


What is the strength and direction of the electric field between positive and negative charges?

The strength of the electric field between positive and negative charges is determined by the magnitude of the charges and the distance between them. The direction of the electric field is from the positive charge to the negative charge.


What is an electric field around a negative charge like?

The electric field around a negative charge radiates outward, with field lines directed toward the charge. This means that a positive test charge placed in this field would be attracted toward the negative charge. The strength of the field decreases with distance from the negative charge.


Which of the following is true about the electric field around an electric charge?

The electric field around an electric charge is a vector field that exerts a force on other charges placed in the field. The strength of the electric field decreases with distance from the charge following the inverse square law. The direction of the electric field is radially outward from a positive charge and radially inward toward a negative charge.


How do you compare and contrast the electrical field around a negative charge and the electric field around a positive charge?

The electric field around a negative charge points inward, towards the charge, while the electric field around a positive charge points outward, away from the charge. The electric field strength decreases with distance from both charges, following an inverse square law relationship.

Related Questions

What is true about an electric field around a negative charge?

The electric field around a negative charge points radially inward towards the charge. The field lines move from areas of higher potential to lower potential. The magnitude of the electric field decreases with distance from the negative charge.


What is the strength and direction of the electric field between positive and negative charges?

The strength of the electric field between positive and negative charges is determined by the magnitude of the charges and the distance between them. The direction of the electric field is from the positive charge to the negative charge.


What is an electric field around a negative charge like?

The electric field around a negative charge radiates outward, with field lines directed toward the charge. This means that a positive test charge placed in this field would be attracted toward the negative charge. The strength of the field decreases with distance from the negative charge.


Which of the following is true about the electric field around an electric charge?

The electric field around an electric charge is a vector field that exerts a force on other charges placed in the field. The strength of the electric field decreases with distance from the charge following the inverse square law. The direction of the electric field is radially outward from a positive charge and radially inward toward a negative charge.


How do you compare and contrast the electrical field around a negative charge and the electric field around a positive charge?

The electric field around a negative charge points inward, towards the charge, while the electric field around a positive charge points outward, away from the charge. The electric field strength decreases with distance from both charges, following an inverse square law relationship.


What is the direction of the electric field near a negative charge?

The electric field near a negative charge points radially inward towards the charge.


What direction does the electric field point at a position directly east of a negative charge?

The electric field points toward the negative charge.


Compare and contrast The Electric Field Around The Negative Charge And The Electric Field Around A Positive Charge?

A negative charge is caused by a excess of electrons and a positive charge by their lack.


How does a negative point charge behave in an electric field produced by a positive point charge?

A negative point charge will be attracted towards a positive point charge in an electric field.


What factors determine the intensity of an electric field?

The intensity of an electric field is determined by the amount of charge creating the field and the distance from the charge. The closer you are to the charge, the stronger the electric field will be.


When determining an electric field must a positive test charge be used or would a negative one do as well?

Either a positive or a negative test charge can be used to determine an electric field. The direction of the electric field will be defined by the force experienced by the test charge, with the positive test charge moving in the direction of the field and the negative test charge moving opposite to the field.


What are two factors that effect the strength of an electric field?

The strength of an electric field is influenced by two factors: the magnitude of the charge creating the field, and the distance from the charge at which the field is being measured. The larger the charge and the closer the distance, the stronger the electric field will be.