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By which properties, the orientation of molecules in a layer of liquid crystals can be changed?(a) Magnetic field(b) Electric field(c) Electromagnetic field(d) Gallois fieldThe question was posed to me in a national level competition.The origin of the question is Liquid Crystal Displays topic in division Combinational Circuits of Digital Circuits

Answer»

Correct ANSWER is (b) ELECTRIC field

To explain: In LCD, the electric field is induced by a small electric voltage applied across it; Due to which the orientation of molecules in a LAYER of liquid crystals can be changed.



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