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