Fleming's Left Hand Rule

Which rule do we use to predict the direction a current carrying wire will move in a magnetic field?

• Fleming's Left Hand Rule
• Fleming's Right Hand Rule
• Faraday's Left Hand Rule
• Faraday's Right Hand Rule

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

In Flemings Left hand rule what does the thumb point in the direction of?

• The direction of the magnetic field
• The direction of the current
• The direction of the force (movement)
• None of these

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

The current in the green wire flows from the left to the right. What direction does the wire move?

• Up 
• Down
• Into the page
• Out of the page

A magnetic field like this is called...

• a parallel field

• a distorted field

• a uniform field

• a paramagnetic field

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

The strength of the magnetic field produced by a flowing current in a wire is affected by:

• The size of the Current
• The distance from the wire
• The number of coils of wire
• All 3

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which of the following may be done to increase the force felt during the motor effect?

• Increase the current, length of wire in the field or the strength of the magnetic 
• Increase the voltage, length of wire in the field or the strength of the magnetic 
• Increase the current, increase the voltage or increase the strength of the magnetic field
• Increase the resistance in the wire or increase the magnetic field strength

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What should the blanks be?
When a wire carrying an electric current is placed in a ________________, it may experience a force. The field from the fixed magnet ___________ with the field due to the current. This can cause the wire to be attracted or repelled from the fixed magnet you will see the effect of the attraction/repulsion in  the ___________of the wire.

• magnetic field, interacts, movement
• electric field, interacts, movement
• magnetic field, interacts, vibration
• circuit, interacts, movement

Tags

NGSS.HS-PS2-5

The diagram shows a cross-section through a simple DC motor. Select the correct statement:

• The loop will rotate clockwise

• The loop will rotate anticlockwise

• The slip rings aid commutation

• The loop rotates the same way even if the battery is reveresed