Punjab 10th Class Physics Chapter 6 Electromagnetism Mcqs Test Online

Please wait...

• <<
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• >>

 0%

Question 1 of 20

Physics

1. The D.C, motor converts, electrical energy of battery into ______________ of the coil.

1.Sound energy

2.Kinetic energy

3.Potential energy

4.Mechanical energy

Question 1 of 20

Question 2 of 20

2. The shape of magnetic lines of force in case of a straight current carrying conductor is:

1.Elliptical

2.Circular

3.Rectangular

4.Triangular

Question 2 of 20

Question 3 of 20

3. What is the direction of the magnetic field lines inside a bar magnet?

1.From north pole to south pole

2.From side to side

3.There are no magnetic field lines

4.From south pole to north pole

Question 3 of 20

Question 4 of 20

4. Who discovered electromagnetic induction?

1.Michael Faraday

2.Ohm

3.Volta

4.Maxwell

Question 4 of 20

Question 5 of 20

5. A transformer has 100 turns in the primary and 500 turns in the secondary. If 6 volts is applied across its primary, the voltage induced across its secondary would be:

1.60 volts

2.45 volts

3.30 volts

4.0 volts

Question 5 of 20

Question 6 of 20

6. Which statement is true about the magnetic poles?

1.Unlike poles repel

2.A single magnetic poles does not exist

3.Like poles attract

4.Magnetic poles do not effect each other

Question 6 of 20

Question 7 of 20

7. The direction of induced e.m.f. in a circuit is in accordance with conservation of:

1.Mass

2.Energy

3.Charge

4.Momentum

Question 7 of 20

Question 8 of 20

8. If the current in a wire which is placed perpendicular to a magnetic field increases, the force on the wire:

1.Decreases

2.Remains the same

3.Will be zero

4.Increases

Question 8 of 20

Question 9 of 20

9. If a coil moves parallel to magnetic field, the induced e.m.f will be:

1.Negative

2.Positive

3.Maximum

4.Zero

Question 9 of 20

Question 10 of 20

10. The turn ratio of a transformer is 10. It means:

1.Ns = 10 Np

2.Vx = Vv/10

3.Is = 10 Ip

4.Ns = Np / 10

Question 10 of 20

Question 11 of 20

11. The step-up transformer:

1.Increases the input current

2.Has less turns in the secondary coil

3.Has more turns in the primary

4.Increases the input voltage

Question 11 of 20

Question 12 of 20

12. Which is not correct according to Fleming’s left hand rule?

1.The thumb indicates the direction of force

2.The forefinger points in the direction of magnetic field

3.The thumb indicates the direction of current

4.The middle finger points in the direction of current

Question 12 of 20

Question 13 of 20

13. When a straight current carrying conductor is placed in a magnetic field at right angles to it, the direction of force acting upon it is:

1.Makes an angle of 45° with the current

2.Opposite to the direction of the field

3.At right angles to both the field and the current

4.The same as the direction of field

Question 13 of 20

Question 14 of 20

14. A D.C. motor converts:

1.Mechanical energy into chemical energy

2.Electrical energy into chemical energy

3.Electrical energy into mechanical energy

4.Mechanical energy into electrical energy

Question 14 of 20

Question 15 of 20

15. If curl of fingers of right hand shows the direction of current in solenoid, then thumb indicates:

1.South pole

2.Direction of voltage

3.North pole

4.Flow of current

Question 15 of 20

Question 16 of 20

16. Which indicates the number of turns in primary coil?

1.Ep

2.Ns

3.Np

4.Es

Question 16 of 20

Question 17 of 20

17. Which part of a D.C. motor reverses the direction of current through the coil every half-cycle?

1.The armature

2.The brushes

3.The slip rings

4.The commutator

Question 17 of 20

Question 18 of 20

18. Select the statement which is not true:

1.Change of flux induces an e.m.f. in the coil

2.When there is relative motion between the coil and the magnet, induced e.m.f. is produced

3.Michael Faraday discovered Faraday’s law of electromagnetic induction in 1831

4.The value of induced e.m.f is inversely proportional to the rate of change of flux

Question 18 of 20

Question 19 of 20

19. The presence of a magnetic field can be detected by a:

1.Stationary positive charge

2.Stationary negative charge

3.Magnetic compass

4.Small mass

Question 19 of 20

Question 20 of 20

20. Which statement is not correct?

1.Battery contains chemical energy in it

2.Magnetic lines of force can be drawn in any magnetic field

3.If a coil is placed in the magnetic field of a bar magnet, some lines of force will pass through its face

4.A solenoid cannot be connected with a galvanometer

Question 20 of 20

 Loading...

 

Other Related test

• Punjab 11th Class Computer Science Chapter 2 Computer Memory Mcqs Test Online
• Punjab 11th Class English His First Flight Mcqs Test Online
• Punjab 12th Class Physics Chapter 4 Electromagnetic Induction Mcqs Test Online
• Punjab 12th Class Physics Chapter 6 Physics of Solids Mcqs Test Online
• Punjab 10th Class Biology Chapter 6 Inheritance Mcqs Test Online
• Punjab 9th Class Biology Chapter 4 Cells and Tissues Mcqs Test Online
• Punjab 12th Class Biology Chapter 21 Cell Cycle MCQs Test Online
• Punjab 12th Class Chemistry Chapter 3 Group III-A and Group IV-A Elements MCQs Test Online
• Punjab 9th Class Urdu Chapter 10 Mulki Parinday aur Doosray Janwar Mcqs Test Online
• Punjab 10th Class Urdu Chapter 6 Adab Mein Eid-ul-Fitr Mcqs Test Online