Physics
The complete form of 'IC' in electronics is

Independent circuit
Inbuilt circuit
Internal circuit
Integrated circuit

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Physics
A cyclist leans inwards when he is negotiating a curve so that

He may increase his speed
His weight may be reduced
Necessary centripetal force may be available from the horizontal component of the normal reaction due to the track to maintain the curved motion.
No frictional force may be produced between the wheels and the axle

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