Sections
Key Equations

# Key Equations

 the magnitude of the force on an electric charge $F=qvBsinθF=qvBsinθ$ the force on a wire carrying current $F=IℓBsinθF=IℓBsinθ$ the magnitude of the magnetic field created by a long, straight current-carrying wire $Bstraight wire=μ0I2πrBstraight wire=μ0I2πr$ the magnitude of the magnetic field inside a solenoid $Bsolenoid=μ0NIℓBsolenoid=μ0NIℓ$
 magnetic flux $Φ=BAcosθΦ=BAcosθ$ emf $E=−NΔΦΔtE=−NΔΦΔt$