Vishnu brought a piece of 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
Pix X - Cobalt
Pin Y - Iron
Pin Z - Steel
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B
Pix X - Aluminium
Pin Y - Nickel
Pin Z - Steel
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C
Pix X - Copper
Pin Y - Brass
Pin Z - Cobalt
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D
Pix X - Copper
Pin Y - Iron
Pin Z - Steel
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Solution
The correct option is B Pix X - Aluminium
Pin Y - Nickel
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.