Metals are good conductors of electricity because:
Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to:
Siphon will fail to work if:
Nuclear sizes are expressed in a unit named
Which of the following terms is not used in the field of physics?
Light from the Sun reaches us in nearly
Pick out the scalar quantity
Rectifiers are used to convert:
Pa(Pascal) is the unit for
The absorption of ink by blotting paper involves:
Planets do not twinkle because
Stars appears to move from east to west because
Radiocarbon is produced in the atmosphere as a result of
It is easier to roll a stone up a sloping road than to lift it vertical upwards because