Physics Super conductors are substances that Offer high resistance to the flow of electric current Conduct electricity at low temperature Offer minimum resistance to flow of electric current Conduct electricity at high temperature Offer high resistance to the flow of electric current Conduct electricity at low temperature Offer minimum resistance to flow of electric current Conduct electricity at high temperature ANSWER DOWNLOAD EXAMIANS APP
Physics The point where total mass of a body is supposed to be concentrated is known as Centre of gravity Centre of motion Centre of mass Dead centre Centre of gravity Centre of motion Centre of mass Dead centre ANSWER DOWNLOAD EXAMIANS APP
Physics Why are we able to hear short wave broadcasts better than long wave broadcasts ? By convention, short waves are meant for long distances, whereas long waves are reserved for short distances. Short waves are unaffected by atmospheric disturbances. Short waves are more energetic than long waves. Short wave broadcasts are made by nearby radio stations. By convention, short waves are meant for long distances, whereas long waves are reserved for short distances. Short waves are unaffected by atmospheric disturbances. Short waves are more energetic than long waves. Short wave broadcasts are made by nearby radio stations. ANSWER DOWNLOAD EXAMIANS APP
Physics The ''Greenhouse effect' is mainly due to increase in atmospheric Carbon dioxide Sulphur dioxide Ozone Nitrogen Carbon dioxide Sulphur dioxide Ozone Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Physics The layer of atmosphere used for radio-wave transmission is Troposphere Ionosphere Stratosphere Chromosphere Troposphere Ionosphere Stratosphere Chromosphere ANSWER DOWNLOAD EXAMIANS APP
Physics In a magnetic field, the direction of motion of a current carrying conductor is given by Flemings left hand rule Kirchoff's law Maxwell's right hand rule Lenz's rule Flemings left hand rule Kirchoff's law Maxwell's right hand rule Lenz's rule ANSWER DOWNLOAD EXAMIANS APP
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