Question

Vishnu brought a magnet near 3 pins made up of different materials. Pins Y and Z get attracted whereas pin X remains in its place as shown below.

What are the pins X, Y, and Z made up of?

• A. Pin X - Copper
  Pin Y - Iron
  Pin Z - Steel
• B. Pin X - Steel
  Pin Y - Nickel
  Pin Z - Aluminium
• C. Pin X - Copper
  Pin Y - Brass
  Pin Z - Cobalt
• D. Pin X - Iron
  Pin Y - Copper
  Pin Z - Brass

Answer 1

The correct option is A Pin X - Copper

Pin Y - Iron
Pin Z - Steel
The pin X does not get attracted to the magnet. Hence, it is made of a non-magnetic material. It could be made of copper, aluminum or brass. Pins Y and Z get attracted to the magnet. Hence, they are made of magnetic materials. They could be made of iron, steel, nickel, cobalt etc. Out of the given options, X should be copper, Y should be iron, and Z should be steel.