Electromagnetism

Question 1

EMF can be caused by

Answer 1

Passing a wire across the magnetic field, can be detected by a galvanometer

Question 2

EMF can be increased by

Answer 2

• Moving the wire faster
• using a stronger magnet
• Increasing coils
• Using a stronger current

Question 3

EMF can be reversed by

Answer 3

• Moving the wire in the opposite direction
• Reversing the magnet

Question 4

Direct current

Answer 4

Flow in singular direction

Question 5

Alternating current

Answer 5

Direction of flow is reversed in regular time periods