Physics The purpose of choke in a fluorescent lamp is : To decrease the resistance To decrease the current flow To increase the current flow Ro decrease the voltage momentarily To decrease the resistance To decrease the current flow To increase the current flow Ro decrease the voltage momentarily ANSWER DOWNLOAD EXAMIANS APP
Physics Railway tracks are banked on curves so that The train may not fall down inwards Necessary centripetal force may be obtained from the horizontal component of the weight of the train No frictional force may be produced between the tracks and the wheels of the train Necessary centrifugal force may be obtained from the horizontal component of the weight of the train The train may not fall down inwards Necessary centripetal force may be obtained from the horizontal component of the weight of the train No frictional force may be produced between the tracks and the wheels of the train Necessary centrifugal force may be obtained from the horizontal component of the weight of the train ANSWER DOWNLOAD EXAMIANS APP
Physics If a copper wire is increased to double its length, its resistance will become One–fourth Four times Double Half One–fourth Four times Double Half ANSWER DOWNLOAD EXAMIANS APP
Physics The instrument which uses sound waves to measure the depth of oceans is Sonar Radar Venturimeter Altimeter Sonar Radar Venturimeter Altimeter ANSWER DOWNLOAD EXAMIANS APP
Physics Find the power of a convex lens if the image formed is at a distance of 16 cm from the lens when the object is placed on the other side of the lens at 20 cm from the optical centre? -11.25 diopters -3.75 diopters 11.25 diopters 3.75 diopters -11.25 diopters -3.75 diopters 11.25 diopters 3.75 diopters ANSWER DOWNLOAD EXAMIANS APP
Physics A sphere rolls down on two inclined planes of different angles but same height, it does so With the same speed In the same time with the same speed In the same time In the same time with the same kinetic energy With the same speed In the same time with the same speed In the same time In the same time with the same kinetic energy ANSWER DOWNLOAD EXAMIANS APP
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