Physics Which of the following principle is used to produce ''low-temperatures' ? Super conductivity Thermo-electric effect Joule-Kelvin effect Adiabatic demagnetisation Super conductivity Thermo-electric effect Joule-Kelvin effect Adiabatic demagnetisation ANSWER DOWNLOAD EXAMIANS APP
Physics When a bar magnet is cut into two equal halves, the pole strength of each piece – Becomes zero Becomes double Remains the same Becomes half Becomes zero Becomes double Remains the same Becomes half ANSWER DOWNLOAD EXAMIANS APP
Physics Negative feedback in amplifiers Decreases bandwidth and increases noise Decreases bandwidth and decreases noise Increases bandwidth and increases noise Increases bandwidth and decreases noise Decreases bandwidth and increases noise Decreases bandwidth and decreases noise Increases bandwidth and increases noise Increases bandwidth and decreases noise ANSWER DOWNLOAD EXAMIANS APP
Physics Light year is a unit of Distance Light Intensity of light Time Distance Light Intensity of light Time ANSWER DOWNLOAD EXAMIANS APP
Physics In order to make an electromagnet you need a Thin coated copper wire Iron nail Dry cell batteries All of these Thin coated copper wire Iron nail Dry cell batteries All of these ANSWER DOWNLOAD EXAMIANS APP
Physics A permanent magnet can affect None of these Both A & B Electromagnets Magnets None of these Both A & B Electromagnets Magnets ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS