Physics Dynamo is a device for converting Heat energy into electrical energy Chemical energy into electrical energy Magnetic energy into electrical energy Mechanical energy into electrical energy Heat energy into electrical energy Chemical energy into electrical energy Magnetic energy into electrical energy Mechanical energy into electrical energy ANSWER DOWNLOAD EXAMIANS APP
Physics Transformer is a device to convert Low voltage D.C. into high voltage D.C. Low voltage A.C. into high voltage A.C. C. to A.C. Mechanical energy into Electrical energy Low voltage D.C. into high voltage D.C. Low voltage A.C. into high voltage A.C. C. to A.C. Mechanical energy into Electrical energy ANSWER DOWNLOAD EXAMIANS APP
Physics Two vectors are said to be equal if Magnitudes are same but directions are opposite Only their directions are same Only their magnitudes are same Both magnitude and direction are same Magnitudes are same but directions are opposite Only their directions are same Only their magnitudes are same Both magnitude and direction are same 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 electrical resistivity increase its electrical conductivity increase its life enable it to withstand higher voltages increase its electrical resistivity increase its electrical conductivity increase its life ANSWER DOWNLOAD EXAMIANS APP
Physics What are the particles emitted by radioactive element after 3 consecutive disintegration? 2 alpha 1 beta 2 beta 2 alpha 1 alpha 1 beta 2 beta 1 alpha 2 alpha 1 beta 2 beta 2 alpha 1 alpha 1 beta 2 beta 1 alpha ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following events occurred first ? Albert Einstein propounded the General Theory of Relativity Madame Marie Curie became the first woman Nobel Prize winner Marconi first tranmitted a wireless signal Max Planck unveiled the Quantum Theory Albert Einstein propounded the General Theory of Relativity Madame Marie Curie became the first woman Nobel Prize winner Marconi first tranmitted a wireless signal Max Planck unveiled the Quantum Theory ANSWER DOWNLOAD EXAMIANS APP
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