Arun suspended a bar magnet on a string as shown in the diagram below. He brought 3 bar - shaped objects P, Q and R towards the bar magnet. He placed the ends (X and Y) of each object, near the north pole of the bar magnet and recorded his observations in the table below. Object X brought near to N pole Y brought neat to N pole P N pole repelled N pole attracted Q N pole attracted N pole attracted R N pole stationary N pole remains stationary Which of the object(s) is/are a magnet?

Foundation

Physics Foundation

Magnetism

Question

Arun suspended a bar magnet on a string as shown in the diagram below. He brought 3 bar - shaped objects P, Q and R towards the bar magnet. He placed the ends (X and Y) of each object, near the north pole of the bar magnet and recorded his observations in the table below.

Object	X brought near to N pole	Y brought neat to N pole
P	N pole repelled	N pole attracted
Q	N pole attracted	N pole attracted
R	N pole stationary	N pole remains stationary

Which of the object(s) is/are a magnet?

P only

R only

P and R

None of these

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A magnet attracts materials like iron, nickel, cobalt. These are called magnetic materials. Materials that are not attracted towards magnets are called non-magnetic. Each magnet has two magnetic poles—North and South. Opposite poles of two magnets attract each other whereas similar poles repel one another.

Object P is a magnet. When both the ends are placed near the N pole, one pole attracts and the other repels.

Object Q is a magnetic material. When both the ends are placed near the N pole, both the poles are attracted towards it.

Object R is a non - magnet material. When both the ends are placed near the N pole, the N pole remains stationary.