Electric Circuits The resistance of a conductor of diameter d and length l is R Ω. If the diameter of the conductor is halved and its length is doubled, the resistance will be 8R Ω R Ω 2R Ω 4R Ω 8R Ω R Ω 2R Ω 4R Ω ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Two point charges of 4μC are placed at a distance of 3 cm apart from each other in free space. Force acting on two charges will be 400 N 0.02 N 100 N 160 N 400 N 0.02 N 100 N 160 N ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Aluminium is produced from bauxite by froth flotation. electrolytic process. oxidation. rotating. froth flotation. electrolytic process. oxidation. rotating. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Current efficiency in electroplating is usually 99 %. 50 to 60 %. 90 to 98 %. 70 to 80 %. 99 %. 50 to 60 %. 90 to 98 %. 70 to 80 %. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Galvanizing is the coating of chromium. zinc. brass. lead. chromium. zinc. brass. lead. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the reactive power in AC operation? Apparent power × cosθ. Real power × cosθ. Apparent power × sinθ. Real power × sinθ. Apparent power × cosθ. Real power × cosθ. Apparent power × sinθ. Real power × sinθ. ANSWER DOWNLOAD EXAMIANS APP
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