Physics What is the name of the device used to convert alternating current into direct current ? Transformer Galvanometer Ammeter Rectifier Transformer Galvanometer Ammeter Rectifier ANSWER DOWNLOAD EXAMIANS APP
Physics A permanent magnet can affect None of these Both A & B Magnets Electromagnets None of these Both A & B Magnets Electromagnets ANSWER DOWNLOAD EXAMIANS APP
Physics Copper wires are generally used for electrical power transmission instead of iron wire because : Copper is cheaper than iron Copper is a better conductor of electricity than iron Copper can take higher power than iron Copper is lighter than iron Copper is cheaper than iron Copper is a better conductor of electricity than iron Copper can take higher power than iron Copper is lighter than iron ANSWER DOWNLOAD EXAMIANS APP
Physics In sunlight a rose appears red. In green light, the same rose appears Green Red Black Yellow Green Red Black Yellow ANSWER DOWNLOAD EXAMIANS APP
Physics A stone floor feels cold to the bare feet but a carpet on the same floor feels warm. This is because The carpet is a better conductor of heat than the stone The floor and carpet are at different temperatures The human body maintains a constant temperature The stone conveys the heat away from the feet more rapidly than the carpet The carpet is a better conductor of heat than the stone The floor and carpet are at different temperatures The human body maintains a constant temperature The stone conveys the heat away from the feet more rapidly than the carpet ANSWER DOWNLOAD EXAMIANS APP
Physics Water drops cannot stick to the oily surface due to Surface tension Cannot mix each other Lack of adhesive force Water is lighter than oil Surface tension Cannot mix each other Lack of adhesive force Water is lighter than oil ANSWER DOWNLOAD EXAMIANS APP
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