Physics
Flemings ''Left hand Rule" is associated with the effect of

Magnetic Field on current
Electric field on magnet
Magnetic field on magnet
Electric field on current

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Physics
Skating on ice is possible because

Ice is cold
The surface of ice is smooth
The pressure on the ice due to skate raises its melting point
The pressure on the ice due to skate melts the ice by lowering its melting point forming a thin film of water

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