Physics A dynamo is used to convert Electrical energy into mechanical energy Magnetic energy into mechanical energy Electrical energy into magnetic energy Mechanical energy into electrical energy Electrical energy into mechanical energy Magnetic energy into mechanical energy Electrical energy into magnetic energy Mechanical energy into electrical energy ANSWER DOWNLOAD EXAMIANS APP
Physics 'Farad' is the unit of : Capacitance Resistance Inductance Conductance Capacitance Resistance Inductance Conductance ANSWER DOWNLOAD EXAMIANS APP
Physics Working of safety fuses depends upon1. magnetic effect of the current2. chemical effect of the current3. magnitude of the current4. heating effect of the currentSelect the correct answer using the code given below. 3 and 4 only 4 only 1, 2, 3 and 4 1, 2 and 3 only 3 and 4 only 4 only 1, 2, 3 and 4 1, 2 and 3 only ANSWER DOWNLOAD EXAMIANS APP
Physics If there is a circular hole in a metal plate, what happens to the radius of the hole when the plate is heated? Increases Depends upon the metal Decreases Unchanged Increases Depends upon the metal Decreases Unchanged ANSWER DOWNLOAD EXAMIANS APP
Physics Which physicists is the writer of the book 'A Brief History of Time'? Isaac Newton Hans Bethe Stephen Hawking Albert Einstein Isaac Newton Hans Bethe Stephen Hawking Albert Einstein ANSWER DOWNLOAD EXAMIANS APP
Physics Two metallic plate of equal thickness and coefficient thermal conductivity K1 and K2 put together face to face. A common plate is constructed. What is equivalent K? K1+k2/k1k2 None 2k1k2/k1+k2 K1k2/k1+k2 K1+k2/k1k2 None 2k1k2/k1+k2 K1k2/k1+k2 ANSWER DOWNLOAD EXAMIANS APP
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