Basic Electrical Engineering Practice Test 6

1. 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?

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

3. If net force is zero on a particle in magnetic field what is relation between velocity and magnetic field?

4. Direction of induced emf is determined by __________

5. The emf induced in a coil having N turns is?

6. Find the length of a conductor which is moving with a velocity 0.4m/s in a magnetic field of 8T, inducing an emf of 20V if magnetic field, velocity and length of conductor are mutually perpendicular to each other.

7. Magnetomotive force is equal to__________________

8. Unit of reluctance is?

9. Diamagnetic substances have relative permeability_____________

10. According to ____________________ induced emf oppose the cause due to which they are produced.