Topic 7 - Electric and Magnetic Fields (Edexcel A Level Physics)

Which wire has current coming towards you?

• Left

• Right

Which wire has current going away from you?

• Left

• Right

Which image shows the field lines of attraction?

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• 
• 
• 

Which image shows the field lines of repulsion?

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• 
• 
• 

What is the rule about field lines?

(a)  

How is the force on a wire calculated?

• F = mv^2/r

• F = p/BQ

• F = BILsin(θ)

• F = BILcos(θ)

How do you work out the movement of a charged particle in a magnetic field?

• Lenz's Rule

• Farday's Rule

• Flemings Left Hand Rule

• Flemings Right Hand Rule

What is magnetic flux?

• The number of field lines per unit area

• The density of field lines

• The number of field lines for the whole area of the magnet

• The field lines over multiple coils of wire

What is magnetic flux density?

• The number of field lines per unit area

• The density of field lines

• The number of field lines for the whole area of the magnet

• The field lines over multiple coils of wire

What is magnetic flux linkage?

• The number of field lines per unit area

• The density of field lines

• The number of field lines for the whole area of the magnet

• The field lines over multiple coils of wire