SINDH MDCAT 2021 ( PART 4 ) 1. Magnetic field is also known as: Magnetosphere Electromagnetic force Gauss field 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: East West South North 3. The strength of the magnetic field produced by a solenoid depends on: The radius of the solenoid The core material it is wrapped around The current passing through the solenoid 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 type of magnets used The temperature of the surroundings 5. If a transformer is heated up, what will happen to its current, voltage, and power? Current increases, voltage decreases, power increases Current and voltage both increase, power increases Current remains constant, voltage decreases, power decreases 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 Full-Wave Rectifier Neither is commonly used It varies based on the application 7. What primarily provides resistance to the human body’s electrical conduction? Blood Muscles Skin Bones 8. Which of the following does the Theory of Relativity not relate to Gravitational waves Quantum mechanics Time dilation Space-time relation 9. Losses in a transformer are primarily due to which of the following factors Eddy currents and hysteresis Magnetic saturation 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 3 nanoseconds 2 nanoseconds No any specific time 1 nanosecond Loading … Pages: 1 2 3 4 5 6 7 8 9 10 11
