Punjab 12th Class Physics Chapter 3 Electromagnetism Mcqs Test Online

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Question 1 of 12

Physics

1. A moving charge is surrounded by:

1.4 fields

2.None of these

3.3 fields

4.2 fields

Question 1 of 12

Question 2 of 12

2. An electron moves at 2 x 10²m/see perpendicular to magnetic field of 2T, what is the magnitude of magnetic force?

1.6.4 x 10⁻¹⁷N

2.1 x 10⁻⁶N

3.4 x 10⁶N

4.3.6 x 10⁻²⁴N

Question 2 of 12

Question 3 of 12

3. The Weber is unit of measure of:

1.Conductance

2.Electric flux

3.Electric current

4.Magnetic flux

Question 3 of 12

Question 4 of 12

4. Ampere’s law is applicable to:

1.None of these

2.To any closed path

3.Rectangular path

4.Circular path

Question 4 of 12

Question 5 of 12

5. The magnetic flux will be max, for an angle of:

1.0°

2.90°

3.160°

4.60°

Question 5 of 12

Question 6 of 12

6. A photon while passing through magnetic field are deflected towards:

1.North pole

2.South pole

3.Are ionized

4.None of these

Question 6 of 12

Question 7 of 12

7. One weber is equal to:

1.N.A²/m

2.N.m²/A

3.N.A/m

4.Nm/A

Question 7 of 12

Question 8 of 12

8. When charge particle enter perpendicular to magnetic field, the path followed by it is:

1.Ellipse

2.A circle

3.Straight line

4.A helix

Question 8 of 12

Question 9 of 12

9. The unit permeability of free space is:

1.None of these

2.Tm/A²

3.T.m/A

4.T.m²/A

Question 9 of 12

Question 10 of 12

10. The torque in the coil can be increased by increasing:

1.All of above

2.Number of turns

3.Current and magnetic field

4.Area of coil

Question 10 of 12

Question 11 of 12

11. The force on a charge particle moving parallel to magnetic field is:

1.None of these

2.Minimum

3.Zero

4.Maximum

Question 11 of 12

Question 12 of 12

12. Magnetism is related to:

1.Moving charges

2.Stationary and moving charge

3.Law of motion

4.Stationary charges

Question 12 of 12

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