Physics Superconductors are substances which offer no resistance to the flow of electricity offer high resistance to the flow of current conduct electricity at low temperature conduct electricity at high temperatures offer no resistance to the flow of electricity offer high resistance to the flow of current conduct electricity at low temperature conduct electricity at high temperatures ANSWER DOWNLOAD EXAMIANS APP
Physics The wall of a dam is made thicker at the bottom than at the top because the pressure exerted by the water on the wall Depends on the area of the wall Increases with depth of the wall Increases with height of the wall Depends on the thickness of the wall Depends on the area of the wall Increases with depth of the wall Increases with height of the wall Depends on the thickness of the wall ANSWER DOWNLOAD EXAMIANS APP
Physics The best material for the core of a transformer is Hard steel Mild steel Soft iron Stainless steel Hard steel Mild steel Soft iron Stainless steel ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following laws validates the statement that matter can neither be created nor destroyed ? Le Chatelier's Principle Law of osmosis Law of conservation of energy Law of conservation of mass Le Chatelier's Principle Law of osmosis Law of conservation of energy Law of conservation of mass ANSWER DOWNLOAD EXAMIANS APP
Physics Sound travels with a different speed in media. In what order does the velocity of sound increase in these media? Water, iron and air Iron, air and water Iron, water and air Air, water and iron Water, iron and air Iron, air and water Iron, water and air Air, water and iron ANSWER DOWNLOAD EXAMIANS APP
Physics Lux is the SI unit of luminous flux luminous intensity intensity of illumination luminous efficiency luminous flux luminous intensity intensity of illumination luminous efficiency ANSWER DOWNLOAD EXAMIANS APP
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