Physics
Kirchhoff's laws are applicable to

C. circuits only
C. and A.C. circuits both
None of these
C. circuits only

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Physics
A Fuse wire is characterised by

High resistance and low melting point
Low resistance and low melting point
High resistance and high melting point
Low resistance and high melting point

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Physics
A stone floor feels cold to the bare feet but a carpet on the same floor feels warm. This is because

The stone conveys the heat away from the feet more rapidly than the carpet
The carpet is a better conductor of heat than the stone
The floor and carpet are at different temperatures
The human body maintains a constant temperature

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