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Physics, 26.12.2019 21:31 chuyyoshy092714

< br /> < br /> < br /> 5 magnetism acts through non-magnetic materials.< br /> a) true< br /> b) false< br /> c) none< br /> d) both a and b< br /> 6. the strength of the south pole of a magnet is< br /> a) less than< br /> b) greater than< br /> the strength of its north pole.< br /> c) equal to< br /> d) none< br /> poles repel each other.< br /> 7.< br /> a) like< br /> b) un-like< br /> c) both a and b< br /> d)none< br /> 8. most of the magnetic power appears to be concentrated at certain points of a magnet. these points are< br /> called< br /> a) keepers< br /> c) centre< br /> b) inductors< br /> d) poles< br /> 9. wherever an electric current exists, a magnetic field cannot exist.< br /> a) true< br /> c) both a and b< br /> bi false< br /> d) none< br /> 10. unlike magnetic poles create a force of attraction.< br /> al true< br /> b) false< br /> c) both a and b< br /> d) none< br /> 1. materials such as copper, brass, and aluminum are called ferro-magnetic materials< br /> a) true< br /> b) false < br /> c) both a and b < br /> d) none< br /> < br />

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