Magnetic Field Review 1

What is the definition of magnetic field?

• A region of space where a magnetic force is experienced by a moving charged

• A region of space where a electric force is experienced by a moving charged

• A region of space where a magnet moves randomly

• A region of space where electric charged stand still.

What is the conclusion of Oersted Experiment?

• Electric current generates voltage.

• Magnetic field generates electric current.

• Electric current generates magnetic field.

• Magnetic field generates resistance.

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

• Out of the page.

• Into the page.

• Right

• Left

Look at this picture. The direction of the electromotive force respectively is?

• downwards and upwards

• upwards and downwards

• right and left

• left and right

Look at this picture. Which direction of electromotive force will be experienced by the charged particle?

• upwards

• downwards

• right

• left

How is hall voltage generated in a conductor?

• Accumulation of opposite charged particles on each side of the conductor.

• Accumulation of alpha and beta particles on each side of the conductor.

• Resistance of the conductor.

• Random movement of the protons.

Which of the following is not the application of electromagnetic?

• 
• 
• 
• 

Look at this diagram. Which direction of the magnetic field and electromotive force experienced by wire X respectively?

• out of the page; right

• into the page; left

• into the page; left

• out of the page; left

Look at this diagram. Which direction of the magnetic field and electromotive force experienced by wire Y respectively?

• out of the page; right

• into the page; left

• into the page; right

• out of the page; left

In which direction the magnetic field generated from the solenoid?

• up

• down

• left

• right