Electric charges/fields

Front

What is an electric field?

Back

An electric field is a region around a charged particle where a force would be exerted on other charged particles.

Front

What is the direction of electric field lines for a positive charge?

Back

Electric field lines radiate outward from a positive charge.

Front

What is the direction of electric field lines for a negative charge?

Back

Electric field lines point inward toward a negative charge.

Front

What is the relationship between electric field strength and distance from the charge?

Back

Electric field strength decreases with increasing distance from the charge.

Front

What is Coulomb's Law?

Back

Coulomb's Law states that the electrostatic force between two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.

Front

What is the formula for calculating the electrostatic force between two point charges?

Back

F = k * |q1 * q2| / r^2, where F is the force, k is Coulomb's constant, q1 and q2 are the charges, and r is the distance between the charges.

Front

What is the value of Coulomb's constant (k)?

Back

Coulomb's constant (k) is approximately 8.99 x 10^9 N m²/C².

Front

What are electric field lines?

Back

Electric field lines are imaginary lines that represent the direction and strength of an electric field.

Front

What does it mean if electric field lines are dense in a region?

Back

If electric field lines are dense in a region, it indicates a strong electric field in that area.

Front

What is the significance of the shape of electric field lines?

Back

The shape of electric field lines indicates the nature of the electric field, including the presence of positive and negative charges.