Basic Electrical Engineering Mock Test 6

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Question 1 of 10

1. When the area of cross section of the material increases, what happens to reluctance?

Becomes zero

Decreases

Remains the same

Increases

Question 1 of 10

Question 2 of 10

2. Which among the following, is the correct expression for force in a current carrying conductor if magnetic field is perpendicular to it?

F=Bi

F=Bl²

F=Bil

F=B²il

Question 2 of 10

Question 3 of 10

3. What is the expression for force in a current carrying conductor?

F=Kq₁q₂/r²

F=K/r²

F=Kq₁q₂/r

F=Kq/r²

Question 3 of 10

Question 4 of 10

4. The total number of magnetic field lines passing through an area is termed as?

Magnetic flux density

Voltage

Magnetic flux

EMF

Question 4 of 10

Question 5 of 10

5. According to Faraday’s laws of electromagnetic induction, an emf is induced in a conductor whenever?

The conductor is perpendicular to the magnetic field

Moves parallel to the magnetic field

Cuts magnetic lines of flux

Lies in the magnetic field

Question 5 of 10

Question 6 of 10

6. When the length of the material increases, what happens to reluctance?

Becomes zero

Remains the same

Decreases

Increases

Question 6 of 10

Question 7 of 10

7. What is the consequence of motor effect?

Current

Voltage

Electromagnetic induction

EMF

Question 7 of 10

Question 8 of 10

8. A substance whose permeability is less than the permeability of free space is?

Ferromagnetic

Diamagnetic

Paramagnetic

Not a magnetic substance

Question 8 of 10

Question 9 of 10

9. As the temperature increases up to the Curie temperature, the relative susceptibility of ferromagnetic materials?

Becomes zero

Increases

Decreases

Remains constant

Question 9 of 10

Question 10 of 10

10. When the magnetic field intensity in the current carrying conductor increases, what happens to the force in the conductor which is at right angles to the magnetic field?

Remains the same

Becomes zero

Decreases

Increases

Question 10 of 10