QUESTION 4:   4.1) Factorise

QUESTION 1   The exterior angle in a regular polygon is 12°   1.1) How many sides does the polygon have? (1) 1.2) What is the sum of interior angles in this polygon? (2)

If a nail loses its magnetism very easily it would be said to have _____________.

In Fleming’s left hand motor rule, what does your thumb represent?

If you place a bar magnet next to a wire will you induce a current?

Which law states that induced current creates an opposite magnetic field than the one originally used to create the current?

What is created when iron oxide remains in the earth’s magnetic field for ages, slowly orienting the magnetic dipoles in the same direction?

If you have a straight piece of wire and hold it in your right hand, according to Fleming’s right hand-thumb rule, what does your thumb represent?

If a nail can become a magnet very easily it would be said to have ___________.

If the magnetic flux lines expand and contract through a stationary conductor will you induce current?