Physics
The fuse in an electric circuit is connected in

Series with neutral
Series with live
Parallel to live
Parallel to neutral

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Physics
It is easier to roll a barrel full of coal tar than to pull it because

coal tar is a liquid and it flows in the barrel when it is rolled
the rolling friction is much less than the sliding friction
more surface area of the barrel is in contact with the road when it is pulled
the full weight of the barrel comes into play when it is pulled

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Physics
Two identical solid pieces, one of gold and other of silver, when immersed completely in water exhibit equal weights. When weighed in air (given that density of gold is greater than that of silver)

The silver piece will weigh more
The gold piece will weigh more
Weighing will depend on their masses
Both silver and gold pieces weigh equal

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