Electromagnetism mcqs

Electromagnetism mcqs

1. spots are formed on screen having ,In cathode ray oscilloscope by…
2. anode
3. cathode
4. matrix
5. grid

2. Quantity that is not affected by magnetic field …
3. moving charge
4. change in magnetic flux
5. current flowing in conductor
6. stationary charge

3. Device used to measure potential difference between two points in volts called…
4. ohmmeter
5. odometer
6. ammeter
7. voltmeter

4. When a charged particle moves at right angle to a magnetic field quantity that changes called…
5. momentum
6. speed
7. energy
8. moment of inertia

5. Cathode ray oscilloscope displays graph of waveforms based on which of the following…
6. current
7. temperature
8. potential difference
9. voltage

6. Magnetic field inside of a solenoid is…
7. zero
8. weak
9. uniform
10. non-uniform

7. Magnetic field is set up in a region of having current carrying
8. rod
9. wire
10. blog
11. plate

8.  Electric instrument used to measure current in amperes is known as
9. odometer
10. voltmeter
11. ohm meter
12. ammeter

9. When an electron is projected at right angle to uniform magnetic field then it will move along through.
10. helical path
11. circle
12. straight line
13. cube

10. Moving charge experiences magnetic force because of ….
11. magnetic flux
12. magnetic field
13. magnetic current
14. none of above.

11. In moving coil galvanometer, pole faces of U-shaped magnet are made concave wave…
12. to make the field radial
13. to increase the field
14. to weaken field
15. both a and b

12. In moving coil galvanometer, a soft iron cylinder is placed inside coil …
13. to make zero field
14. to make stronger field
15. to make galvanometer heavier
16. both a and b