Electric fields

Question 1

How are field lines drawn on charged particles?

Answer 1

• Away from positve particles, towards negative particles
• Lines are always at right-angles to the surface of the particle

Question 2

How does air get ionised?

Answer 2

• If the charge of an object is strong enough, it can cause air particles to lose electrons and become positive ions. This means that it can now conduct electricity and can result in sparks