Electromagnetic Principles Quiz

What is the unit of magnetic flux?

• Tesla

• Ohm

• Ampere

• Weber

Tags

Year 12

What is the symbol for magnetic flux density?

• B

• Ω

• Ψ

• Φ

What is the relationship between induced emf, length of the conductor, and velocity?

• Exponential relationship

• No relationship

• Inversely proportional

• Directly proportional

What is the force experienced by a 0.5m conductor carrying 3A of current in a magnetic field of 1.2T?

• 0.9N

• 1.8N

• 2.7N

• 3.6N

What does Fleming's left hand rule determine in a magnetic field?

• Polarity of the conventional current

• Polarity of the field

• Direction of motion

• All of the above

What is the direction of the force experienced by a current-carrying conductor in a magnetic field?

• Parallel to the magnetic field

• Perpendicular to the magnetic field

• Opposite to the direction of current

• Same as the direction of current

What is the effect of increasing the velocity of the conductor on the induced emf in a magnetic field?

• Induced emf decreases

• Induced emf increases

• Induced emf remains the same

• Induced emf becomes zero

What is the unit of magnetic field strength?

• Tesla

• Ohm

• Ampere

• Weber

What is the effect of increasing the magnetic field strength on the induced emf in a conductor?

• Induced emf decreases

• Induced emf increases

• Induced emf remains the same

• Induced emf becomes zero

What does Fleming's right hand rule determine in a magnetic field?

• Direction of induced current

• Direction of magnetic field

• Direction of motion

• All of the above