Worksheet Answers
Electromagnetic induction
1 (a) No current. 1
(b) Current flows. 1
(c) No current. 1
(d) Current flows 1
in reverse direction. 1
(e) No current. 1
(f) No current. 1
Total 7
2 (a) (i) Current flows. 1
(ii) No current. 1
(iii) Current flows 1
in reverse direction. 1
(b) (i) Current flows 1
in reverse direction to current in (a) (i). 1
(ii) Current flows if you move the coil instead
of the magnet. 1
The direction of the current is the same if you
move the magnet towards the coil or the coil
towards the magnet. 1
(c) An alternating current 1
flows. 1
Total 10
4 (a) Alternating. 1
(b) Allow current to flow into and out of the coil. 1
(c) Current increases in size (allow increase
in frequency) 1Total 3
