AP Physics Electricity & Magnetism

Question 1

What is Ohm's Law?

Accepted Answer

V = I * R

Answer

V = I/R

Answer

V = I + R

Answer

V = R * I

Question 2

What does a capacitor do in an electrical circuit?

Accepted Answer

It stores and releases energy

Answer

It resists the flow of current

Answer

It generates electricity

Answer

It decreases resistance

Question 3

How does a magnetic field affect a moving charge?

Accepted Answer

It exerts a force perpendicular to motion

Answer

It increases the velocity

Answer

It changes the charge

Answer

It stops the motion

Question 4

What is the unit of electrical resistance?

Accepted Answer

Ohm

Answer

Joule

Answer

Volt

Answer

Ampere

Question 5

What is the function of an inductor in an electrical circuit?

Accepted Answer

It resists changes in current

Answer

It stores electrical energy

Answer

It decreases voltage

Answer

It generates electricity

Question 6

What is a common characteristic of series circuits?

Accepted Answer

Current is the same through all components

Answer

Voltage is the same across all components

Answer

Resistance is the same across all components

Answer

Power is the same across all components

Question 7

What does a battery do in an electric circuit?

Accepted Answer

It provides voltage

Answer

It resists the current flow

Answer

It generates energy from the circuit

Answer

It decreases current

Question 8

What is the relationship between current, voltage, and power in an electrical circuit?

Accepted Answer

P = I * V

Answer

P = I / V

Answer

P = I + V

Answer

P = V / I

Question 9

How is electrical energy related to power?

Accepted Answer

E = P * t

Answer

E = P / t

Answer

E = P + t

Answer

E = P - t