Advitya's company makes compases .It has a steel ring ,a magnetised needle and a glass cover.The costumers complained that it shows the wrong direction .Why ?
becsuse of the steel cover
because of the glass cover
because his company can not be trusted
none
Why do we use steel inside wires ?
because it is cheap
because it is lustourous
because it is brown in colour
because it has high melting point
Achintya was about to suspend a bar magnet but accidently dropped it .She then suspended it .It did not gave the correct direction.Why ?
because the compass she was using came from advityas company
it loosed its magnetism
she did not suspend it properly
none
Rishabh wants to demagnetise a magnet .What should he do ?
hammer it
heat it
drop it
all
Are all metals magnetic ?
yes
no
some are while some are not
none are
How canwe convert a magnetic substance in to magnetic substance ?
electromagnet
one touch magnet
none
both a and b
Threre are how many types of magnets ?
one
three
two
four
Is the magnetic field of two magnets stronger than one ?
yes
no
depends
0
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