Which effect of electric current is utilized in the working of an electric fuse?

12 Distinguish between a solenoid and a bar magnet. Draw the magnetic lines for both 13 What is electromagnetic induction? Explain how the movement of a magnet towards or away from a coil carrying a galvanometer produce current? Write the rule to find the direction of current in this above coil. 15 What will you do if you see a person coming in contact with a live wire? 16 Name an instrument in which the directive property of a magnet is used.