A 300 mm long conductor is carrying a current of 10 A and is situated at right angles to a magnetic field having a flux density of 0.8 T ; the force on the conductor will be____________?

Related Mcqs:

1. A 200 turn coil having an axial length of 30 mm and a radius of 10 mm is pivoted in a magnetic field having a flux density of 0.8 T. If the coil carries a current of 0.5 A, the torque acting on the coil will be_____________?

   A. 8 N-m B. 0.48 N-m C. 0.048 N-m D. 0.0048 N-m...

2. A conductor of length L has current I passing through it, when it is placed parallel to a magnetic field. The force experienced by the conductor will be______________?

   A. zero B. BLI C. B2LI D. BLI2...

3. Which of the following is the unit of magnetic flux density ?

   A. weber B. lumens C. tesla D. none of the above...

4. The change of cross-sectional area of conductor in magnetic field will affect______________?

   A. reluctance of conductor B. resistance of conductor C. A. and B. both in the same way D. none of the above...

5. How does the magnetic compass needle behave in a magnetic field ?

   A. It assures a position right angle to magnetic field B. It starts rotating C. It assures a position which follows a line of magnetic flux D. None of the above...

6. What will be the magnetic potential difference across the air gap of 2 cm length in magnetic field of 200 AT/m ?

   A. 2 AT B. 4 AT C. 6 AT D. 10 AT...

7. The stray line of magnetic flux is defined as_____________?

   A. a line vertical to the flux lines B. the mean length of a ring shaped coil C. a line of magnetic flux in a non-uniform field D. a line of magnetic flux which does not follow the designed path...

8. The materials are a bit inferior conductors of magnetic flux than air

   A. ferromagnetic B. paramagnetic C. diamagnetic D. dielectric...

9. The electromagnet has 50 turns and a current of 1A flows through the coil. If the length of the magnet circuit is 200 mm, what is the magnetic field strength ?

   A. 2500 AT/m B. 250 AT/m C. 25 AT/m D. 2.5 AT/m...

10. The two conductors of a transmission line carry equal current I in opposite directions. The force on each conductor is________________?

    A. proportional to 7 B. proportional to X C. proportional to distance between the conductors D. inversely proportional to I...