Electromagnetism mcqs

By: Prof. Dr. Fazal Rehman | Last updated: May 20, 2025

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1. : Spots are formed on the screen in a cathode ray oscilloscope by





2. : The quantity that is not affected by a magnetic field is





3. : The device used to measure the potential difference between two points in volts is called a





4. : When a charged particle moves at right angles to a magnetic field, the quantity that changes is called





5. : The cathode ray oscilloscope displays a graph of waveforms based on which of the following





6. : The magnetic field inside a solenoid is





7. : A magnetic field is set up in a region of a current-carrying





8. : The electric instrument used to measure current in amperes is known as





9. : When an electron is projected at right angles to a uniform magnetic field, it will move along a





10. : A moving charge experiences a magnetic force because of





11. : In a moving coil galvanometer, the pole faces of the U-shaped magnet are made concave to





12. : In a moving coil galvanometer, a soft iron cylinder is placed inside the coil to





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