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