Physics The potential difference between the terminals of an electric heater is 60 V when it draws a current of 4 A from the source. What current will the heater draw if the potential difference is increased to 127.5 V ? 0.41666666666667 24 A 8.5 A 0.41666666666667 24 A 8.5 A ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following are used for accurately measuring very small time intervals ? Pulsars Atomic clocks White dwarfs Quartz clocks Pulsars Atomic clocks White dwarfs Quartz clocks ANSWER DOWNLOAD EXAMIANS APP
Physics Suitable impurities are added to a semiconductor depending on its use. This is done in order to enable it to withstand higher voltages increase its life increase its electrical conductivity increase its electrical resistivity enable it to withstand higher voltages increase its life increase its electrical conductivity increase its electrical resistivity ANSWER DOWNLOAD EXAMIANS APP
Physics The energy emitted by the Sun is due to Chemical reaction Nuclear fusion Nuclear fission All of these Chemical reaction Nuclear fusion Nuclear fission All of these ANSWER DOWNLOAD EXAMIANS APP
Physics Why does a cannon recoil after firing ? Newton's third law of motion Newton's first law of motion Conservation of energy Backward thrust of gases produced Newton's third law of motion Newton's first law of motion Conservation of energy Backward thrust of gases produced ANSWER DOWNLOAD EXAMIANS APP
Physics The phenomenon of change in direction of light when it passes from one medium to another is called Dispersion Propagation Reflection Refraction Dispersion Propagation Reflection Refraction ANSWER DOWNLOAD EXAMIANS APP
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