A ceiling fan has blades of about 5 times larger in size, i.e. it sweeps around 25 times more area/air than a table fan which implies around 25 times higher drag i.e will require 25 times more powerful motor to act with same pitched blades
but the motors for both of them is comparable, hence the pitch is lower, while for the table fan(which is designed for portability & can't have long blades) with comparable power motor, can afford more curved blades, & finally be able to sweep larger maximum amount of air.
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