Physics 51 Module 11: Electric Charge and Electric Field

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What is electric charge?

A physical property carried by certain subatomic particles (correct)

A characteristic that is only present in metals

A force that acts between two objects

A type of electromagnetic wave

What is the principle of superposition in relation to electric charge?

The total charge in an isolated system is always zero

The total charge in an isolated system is always conserved (correct)

The total charge in an isolated system is always positive

The total charge in an isolated system is always negative

What is the property of electric charge known as quantization of charge?

The magnitude of the charge of an electron is random

The magnitude of the charge of an electron is zero

The magnitude of the charge of an electron is a natural unit of charge (correct)

The magnitude of the charge of an electron is infinite

What is the direction of the electric field of a positive point charge?

Away from the charge Signup and view all the answers

What is the unit of electric field magnitude?

1 N/C Signup and view all the answers

Why do atoms normally not have an overall charge?

Because their positive and negative charges cancel each other out Signup and view all the answers

What is a conductor in relation to electric charge?

A material that permits electric charge to move freely through it Signup and view all the answers

What is Coulomb's Law related to?

The magnitude of the electric force between two point charges Signup and view all the answers

What is the electric force on a charged body exerted by?

The electric field created by other charged bodies Signup and view all the answers

What happens when electrons move away from an atom?

The atom gains or loses a charge Signup and view all the answers

What does the length of the vectors in a vector representation of an electric field indicate?

The magnitude of the field Signup and view all the answers

What does the distance between field lines in a lines-of-force representation indicate?

The magnitude of the field Signup and view all the answers

What is the direction of the force exerted by q2 on qa?

Attractive and makes an angle of 45° Signup and view all the answers

What is the net force on qa?

4.5 N Signup and view all the answers

What is the electric field at a point halfway between two point charges?

3.60 x 10^6 N/C directed to the -x-axis Signup and view all the answers

What is the force exerted on a third charge placed at the midpoint between two point charges?

Depends on the magnitude of the third charge Signup and view all the answers

What is the distance between the two point charges?

1.00 m Signup and view all the answers

Physics 51 Module 11: Electric Charge and Electric Field

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