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Metals are good conductors of electricity because

they contain free electrons
the atoms are lightly packed
they have high melting point
All of the above
Additional Questions

Let a thin capillary tube be replaced with another tube of insufficient length then, we find water

Answer

Out of the following pairs, choose the pair in which the physical quantities do not have identical dimension?

Answer

If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same

Answer

Pick out the scalar quantity

Answer

Rectifiers are used to convert

Answer

out of the following, which is not emitted by radioactive substance?

Answer

Sound waves in air are

Answer

Magnetism at the centre of a bar magnet is

Answer

It is more difficult to walk on a sandy road than on a concrete road because

Answer

Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2

Answer
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