Electricity and Magnetism

The figure shows the symbol of a battery. Which side is the positive terminal of the battery?

• Left side
• Right side

(True / False) Current travel inside a battery from its positive terminal to its negative terminal.

• True

• False

Which terminal of a battery has higher electric potential?

• Positive terminal

• Negative terminal

• I don't know what "electric potential" is

What is the direction of magnetic field at point A?

• To the left

• To the right

• Out of paper

• Into paper

If a compass is put at position 2, which direction does the compass point to?

In the observer's eye, what is the direction of the current?

• Upward

• Downward

• Out of paper

• Into paper

In the observer's eye, what is the direction of magnetic field between the slab-shaped magnets?

• To the left

• To the right

• Out of paper

• Into paper

Draw the directions of current and magnetic field in the observer's eye.

In the observer's eye, what is the direction of magnetic force acting on the current?

(True / False) According to Fleming's left-hand rule, the magnetic force (F) is always perpendicular to the magnetic field (B).

• True
• False