ETEA MDCAT Past Paper 2021 ETEA MDCAT 16 September ( PART 4 ) 1. Magnetic field is also known as: Gauss field Magnetosphere Electromagnetic force B-field 2. When an electron moves into a field in the west direction and is directed towards the north due to the magnetic field, the direction of the magnetic field is: West East North South 3. The strength of the magnetic field produced by a solenoid depends on: The shape of the solenoid The radius of the solenoid The current passing through the solenoid The core material it is wrapped around 4. The electromotive force (EMF) produced by a generator depends on: The rate of change of magnetic flux The type of magnets used The size of the generator The temperature of the surroundings 5. If a transformer is heated up, what will happen to its current, voltage, and power? Current and voltage both increase, power increases Current decreases, voltage increases, power remains constant Current remains constant, voltage decreases, power decreases Current increases, voltage decreases, power increases 6. Which type of rectifier is most commonly used among half-wave and full-wave rectifiers Full-Wave Rectifier It varies based on the application Neither is commonly used Half-Wave Rectifier 7. What primarily provides resistance to the human body’s electrical conduction? Skin Muscles Bones Blood 8. Which of the following does the Theory of Relativity not relate to Quantum mechanics Time dilation Space-time relation Gravitational waves 9. Losses in a transformer are primarily due to which of the following factors Resistance of windings Magnetic saturation Core material Eddy currents and hysteresis 10. Electrons in a certain system are excited. On average, how long do these electrons stay in their excited state 3 nanoseconds 1 nanosecond 2 nanoseconds No any specific time Loading … Pages: 1 2 3 4 5 6 7 8 9 10 11
