Physics The resistance of a conductor is inversely proportional to its: Area of cross section Temperature Length Resistivity Area of cross section Temperature Length Resistivity ANSWER DOWNLOAD EXAMIANS APP
Physics After long periods of use, a grey spot develops on the inside of a bulb. This is because Dust inside the bulb condenses on the top The heat of the bulb scorches the glass at the top Glass undergoes a change due to the heat The tungsten filament evaporates and collects there Dust inside the bulb condenses on the top The heat of the bulb scorches the glass at the top Glass undergoes a change due to the heat The tungsten filament evaporates and collects there ANSWER DOWNLOAD EXAMIANS APP
Physics A capillary tube is partially dipped vertically in a vessel containing water. Due to capillarity water rises in the tube. The height of water rise in the tube can be increased by Increasing the radius of the capillary tube None of these Decreasing the radius of the capillary tube Increasing the height of water in the vessel Increasing the radius of the capillary tube None of these Decreasing the radius of the capillary tube Increasing the height of water in the vessel ANSWER DOWNLOAD EXAMIANS APP
Physics Certain substances loose their electrical resistance completely at super low temperature. Such substances are called. Superconductors Dielectrics Perfect conductors Semi conductors Superconductors Dielectrics Perfect conductors Semi conductors ANSWER DOWNLOAD EXAMIANS APP
Physics The boiling point of water decreases at higher altitudes is due to High atmospheric pressure Low temperature Low atmospheric pressure High temprature High atmospheric pressure Low temperature Low atmospheric pressure High temprature ANSWER DOWNLOAD EXAMIANS APP
Physics Convex mirrors are used as a rear view mirror in motor cycles because It forms smaller image as compared with object All of these It forms real image It forms erect (upright) image It forms smaller image as compared with object All of these It forms real image It forms erect (upright) image ANSWER DOWNLOAD EXAMIANS APP
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