AP Physics C - Algebra Based EM Exam Review

Front

What is the direction of the electric field created by two point charges of equal magnitudes and opposite signs?

Back

The electric field points away from the positive charge and towards the negative charge.

Front

What happens to a negative charge in an electric field?

Back

A negative charge will move from low potential to high potential.

Front

What is an equipotential line?

Back

An equipotential line is a line in an electric field where the electric potential is constant.

Front

What is the relationship between electric field and electric potential?

Back

Electric field is the negative gradient of electric potential.

Front

What does it mean for a charge to move along an equipotential line?

Back

No work is done by or against the electric field when a charge moves along an equipotential line.

Front

What is the significance of zero electric potential at a point?

Back

Zero electric potential indicates that a charge placed at that point would not experience any net force due to the electric field.

Front

How does a magnetic field behave when a conductor moves through it?

Back

A magnetic field is induced in a direction determined by the right-hand rule, depending on the direction of motion and the magnetic field.

Front

What is the right-hand rule in electromagnetism?

Back

The right-hand rule is a mnemonic for understanding the direction of induced current or magnetic force: point your thumb in the direction of motion, and your fingers in the direction of the magnetic field; your palm points in the direction of the force.

Front

What is the formula for electric potential due to a point charge?

Back

V = k * (Q/r), where V is the electric potential, k is Coulomb's constant, Q is the charge, and r is the distance from the charge.

Front

What is Coulomb's Law?

Back

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