GCSE Standard Questions: The Motor Effect

Q3. When a conductor carrying an electric current is placed in a magnetic field a force may act on it.

(a) State two ways in which this force can be increased.

(2 marks)

(b) State two ways in which this force can be made to act in the opposite direction.

(2 marks)

(c) In what circumstance will no force act on a conductor carrying an electric current and in a magnetic field?

(1 mark)

(Total 5 marks)