Electromagnetic Principles Quiz

What is the unit of magnetic flux?

• D) Tesla

• C) Volt

• B) Weber

• A) Ampere

Which metals have the property of magnetism?

• C) Gold and Silver

• D) Zinc and Lead

• A) Copper and Aluminum

• B) Iron and Nickel

What is the symbol for magnetic flux?

• A) Alpha

• B) Beta

• D) Phi

• C) Gamma

What is the unit of flux density?

• B) Tesla

• A) Weber

• C) Ampere

• D) Ohm

What is reluctance to a magnetic circuit?

• C) The polarity of the field

• B) The force acting on a conductor

• A) Resistance to an electric circuit

• D) The distortion of flux lines

What is the relationship between flux density and area?

• D) Exponential relationship

• A) Directly proportional

• B) Inversely proportional

• C) No relationship

What is the force on a conductor expressed as?

• C) F = βIL

• B) F = βI

• A) F = IL

• D) F = βIL^2

What is the direction of motion indicated by Fleming's left hand rule?

• D) Little finger

• C) Thumb

• B) Second finger

• A) First finger

What determines the size of the induced emf?

• D) All of the above

• C) Density of the magnetic field

• B) Velocity of the conductor

• A) Length of the conductor

How do you calculate the Flux density?

• Magnetic Flux / Area

• Magnetic Flux / Volume

• Magnetic Flux x Area

• Magnetic Flux x Volume