Physics The function of ball bearings in a wheel is : To increase friction To convert static friction into kinetic friction To convert kinetic friction into rolling friction Just for convenience To increase friction To convert static friction into kinetic friction To convert kinetic friction into rolling friction Just for convenience ANSWER DOWNLOAD EXAMIANS APP
Physics Heavy water is used in nuclear reactor to Increase speed of neutron Absorb neutron Increase temperature Slow down neutron Increase speed of neutron Absorb neutron Increase temperature Slow down neutron ANSWER DOWNLOAD EXAMIANS APP
Physics Who gave black hole theory? Isaac Newton Stephen Hawking Albert Einstein None of these Isaac Newton Stephen Hawking Albert Einstein None of these ANSWER DOWNLOAD EXAMIANS APP
Physics Magnetic keepers are used to protect magnets from : Demagnetization due to heating Effect of other magnets Earth's magnetic field Self-demagnetization Demagnetization due to heating Effect of other magnets Earth's magnetic field Self-demagnetization ANSWER DOWNLOAD EXAMIANS APP
Physics A stone floor feels cold to the bare feet but a carpet on the same floor feels warm. This is because The carpet is a better conductor of heat than the stone The stone conveys the heat away from the feet more rapidly than the carpet The human body maintains a constant temperature The floor and carpet are at different temperatures The carpet is a better conductor of heat than the stone The stone conveys the heat away from the feet more rapidly than the carpet The human body maintains a constant temperature The floor and carpet are at different temperatures ANSWER DOWNLOAD EXAMIANS APP
Physics A good conductor while carrying current is Positively charged Negatively charged Electrically neutral Alternately charged positive and negative Positively charged Negatively charged Electrically neutral Alternately charged positive and negative ANSWER DOWNLOAD EXAMIANS APP
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